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The National Company for Amateur Radio, also known as the National Radio Company,
was a major player in the development and manufacture of amateur radio equipment
during the early to mid-20th century. The company was founded in 1914 in Malden,
Massachusetts, USA, by James Millen, a skilled radio technician and inventor.
The National Company initially focused on manufacturing high-quality radio receivers and transmitters for the burgeoning amateur radio market. Millen was a skilled engineer and his products quickly gained a reputation for being well-designed and reliable. The company expanded rapidly, and by the 1920s, it had become one of the leading manufacturers of amateur radio equipment in the United States.
During World War II, the National Company shifted its focus to military production, manufacturing critical communications equipment for the US Army and Navy. After the war, the company resumed production of amateur radio equipment, but faced increasing competition from new entrants into the market.
In the 1950s and 1960s, the National Company continued to innovate, producing some of the most advanced amateur radio equipment of the time. However, by the 1970s, the market for amateur radio equipment had shifted, with more hobbyists interested in lower-cost, imported equipment.
In 1976, the National Company was sold to the Panasonic Corporation and the brand name was eventually phased out. However, many of the designs and innovations developed by the National Company continue to be used in modern amateur radio equipment, and the company's legacy remains an important part of the history of amateur radio.
This content was generated by primarily
the ChatGPT (OpenAI), and/or
Gemini (Google), and/or
Arya (GabAI), and/or
Grok (x.AI), and/or DeepSeek artificial intelligence (AI) engine.
Some review was performed to help detect and correct any inaccuracies; however,
you are encouraged to verify the information yourself if it will be used for critical
applications. In some cases, multiple solicitations to the AI engine(s) was(were) used to assimilate
final content. Images and external hyperlinks have also been added occasionally.
Courts have ruled that AI-generated content is not subject to copyright restrictions,
but since I modify them, everything here is protected by RF Cafe copyright. Many
of the images are likewise generated and modified. Your use of this data implies
an agreement to hold totally harmless Kirt Blattenberger, RF Cafe, and any and all
of its assigns. Thank you. Here are the major categories.
AI Technical Trustability Update
While working on an update to my RF Cafe Espresso Engineering Workbook project to add a couple calculators about FM sidebands (available soon). The good news is that AI provided excellent VBA code to generate a set of Bessel function plots. The bad news is when I asked for a table showing at which modulation indices sidebands 0 (carrier) through 5 vanish, none of the agents got it right. Some were really bad. The AI agents typically explain their reason and method correctly, then go on to produces bad results. Even after pointing out errors, subsequent results are still wrong. I do a lot of AI work and see this often, even with subscribing to professional versions. I ultimately generated the table myself. There is going to be a lot of inaccurate information out there based on unverified AI queries, so beware.
Electronics & High Tech Companies | Electronics & Tech Publications | Electronics & Tech Pioneers | Electronics & Tech Principles | Tech Standards Groups & Industry Associations | Societal Influences on Technology
|
About RF Cafe
Copyright: 1996 - 2025 |
RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while tying up your telephone line, and a lady's voice announced "You've Got Mail" when a new message arrived... |
Copyright 1996 - 2026 All trademarks, copyrights, patents, and other rights of ownership to images
and text used on the RF Cafe website are hereby acknowledge My Hobby Website: Airplanes My Daughter's Website: EquineKingdom |
The National Company for Amateur Radio, also known as the National Radio Company,
was a major player in the development and manufacture of amateur radio equipment
during the early to mid-20th century. The company was founded in 1914 in Malden,
Massachusetts, USA, by James Millen, a skilled radio technician and inventor.
The National Company initially focused on manufacturing high-quality radio receivers and transmitters for the burgeoning amateur radio market. Millen was a skilled engineer and his products quickly gained a reputation for being well-designed and reliable. The company expanded rapidly, and by the 1920s, it had become one of the leading manufacturers of amateur radio equipment in the United States.
During World War II, the National Company shifted its focus to military production, manufacturing critical communications equipment for the US Army and Navy. After the war, the company resumed production of amateur radio equipment, but faced increasing competition from new entrants into the market.
In the 1950s and 1960s, the National Company continued to innovate, producing some of the most advanced amateur radio equipment of the time. However, by the 1970s, the market for amateur radio equipment had shifted, with more hobbyists interested in lower-cost, imported equipment.
In 1976, the National Company was sold to the Panasonic Corporation and the brand name was eventually phased out. However, many of the designs and innovations developed by the National Company continue to be used in modern amateur radio equipment, and the company's legacy remains an important part of the history of amateur radio.
This content was generated by primarily
the ChatGPT (OpenAI), and/or
Gemini (Google), and/or
Arya (GabAI), and/or
Grok (x.AI), and/or DeepSeek artificial intelligence (AI) engine.
Some review was performed to help detect and correct any inaccuracies; however,
you are encouraged to verify the information yourself if it will be used for critical
applications. In some cases, multiple solicitations to the AI engine(s) was(were) used to assimilate
final content. Images and external hyperlinks have also been added occasionally.
Courts have ruled that AI-generated content is not subject to copyright restrictions,
but since I modify them, everything here is protected by RF Cafe copyright. Many
of the images are likewise generated and modified. Your use of this data implies
an agreement to hold totally harmless Kirt Blattenberger, RF Cafe, and any and all
of its assigns. Thank you. Here are the major categories.
Electronics & High Tech Companies | Electronics & Tech Publications | Electronics & Tech Pioneers | Electronics & Tech Principles | Tech Standards Groups & Industry Associations | Societal Influences on Technology
AI Technical Trustability Update
While working on an
update to my
RF Cafe Espresso Engineering Workbook project to add a couple calculators
about FM sidebands (available soon). The good news is that AI provided excellent
VBA code to generate a set of
Bessel function plots. The bad news is when I asked for a
table
showing at which modulation indices sidebands 0 (carrier) through 5 vanish,
none of the agents got it right. Some were really bad. The AI agents typically
explain their reason and method correctly, then go on to produces bad results.
Even after pointing out errors, subsequent results are still wrong. I do a
lot of AI work and see this often, even with subscribing to professional
versions. I ultimately generated the table myself. There is going to be a
lot of inaccurate information out there based on unverified AI queries, so
beware.
|
About RF Cafe
Copyright: 1996 - 2025 |
RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while tying up your telephone line, and a lady's voice announced "You've Got Mail" when a new message arrived... |
Copyright 1996 - 2026 All trademarks, copyrights, patents, and other rights of ownership to images
and text used on the RF Cafe website are hereby acknowledge My Hobby Website: Airplanes My Daughter's Website: EquineKingdom |
The National Company for Amateur Radio, also known as the National Radio Company,
was a major player in the development and manufacture of amateur radio equipment
during the early to mid-20th century. The company was founded in 1914 in Malden,
Massachusetts, USA, by James Millen, a skilled radio technician and inventor.
The National Company initially focused on manufacturing high-quality radio receivers and transmitters for the burgeoning amateur radio market. Millen was a skilled engineer and his products quickly gained a reputation for being well-designed and reliable. The company expanded rapidly, and by the 1920s, it had become one of the leading manufacturers of amateur radio equipment in the United States.
During World War II, the National Company shifted its focus to military production, manufacturing critical communications equipment for the US Army and Navy. After the war, the company resumed production of amateur radio equipment, but faced increasing competition from new entrants into the market.
In the 1950s and 1960s, the National Company continued to innovate, producing some of the most advanced amateur radio equipment of the time. However, by the 1970s, the market for amateur radio equipment had shifted, with more hobbyists interested in lower-cost, imported equipment.
In 1976, the National Company was sold to the Panasonic Corporation and the brand name was eventually phased out. However, many of the designs and innovations developed by the National Company continue to be used in modern amateur radio equipment, and the company's legacy remains an important part of the history of amateur radio.
This content was generated by primarily
the ChatGPT (OpenAI), and/or
Gemini (Google), and/or
Arya (GabAI), and/or
Grok (x.AI), and/or DeepSeek artificial intelligence (AI) engine.
Some review was performed to help detect and correct any inaccuracies; however,
you are encouraged to verify the information yourself if it will be used for critical
applications. In some cases, multiple solicitations to the AI engine(s) was(were) used to assimilate
final content. Images and external hyperlinks have also been added occasionally.
Courts have ruled that AI-generated content is not subject to copyright restrictions,
but since I modify them, everything here is protected by RF Cafe copyright. Many
of the images are likewise generated and modified. Your use of this data implies
an agreement to hold totally harmless Kirt Blattenberger, RF Cafe, and any and all
of its assigns. Thank you. Here are the major categories.
Electronics & High Tech Companies | Electronics & Tech Publications | Electronics & Tech Pioneers | Electronics & Tech Principles | Tech Standards Groups & Industry Associations | Societal Influences on Technology
AI Technical Trustability Update
While working on an
update to my
RF Cafe Espresso Engineering Workbook project to add a couple calculators
about FM sidebands (available soon). The good news is that AI provided excellent
VBA code to generate a set of
Bessel function plots. The bad news is when I asked for a
table
showing at which modulation indices sidebands 0 (carrier) through 5 vanish,
none of the agents got it right. Some were really bad. The AI agents typically
explain their reason and method correctly, then go on to produces bad results.
Even after pointing out errors, subsequent results are still wrong. I do a
lot of AI work and see this often, even with subscribing to professional
versions. I ultimately generated the table myself. There is going to be a
lot of inaccurate information out there based on unverified AI queries, so
beware.
|
About RF Cafe
Copyright: 1996 - 2025 |
RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while tying up your telephone line, and a lady's voice announced "You've Got Mail" when a new message arrived... |
Copyright 1996 - 2026 All trademarks, copyrights, patents, and other rights of ownership to images
and text used on the RF Cafe website are hereby acknowledge My Hobby Website: Airplanes My Daughter's Website: EquineKingdom |
The National Company for Amateur Radio, also known as the National Radio Company,
was a major player in the development and manufacture of amateur radio equipment
during the early to mid-20th century. The company was founded in 1914 in Malden,
Massachusetts, USA, by James Millen, a skilled radio technician and inventor.
The National Company initially focused on manufacturing high-quality radio receivers and transmitters for the burgeoning amateur radio market. Millen was a skilled engineer and his products quickly gained a reputation for being well-designed and reliable. The company expanded rapidly, and by the 1920s, it had become one of the leading manufacturers of amateur radio equipment in the United States.
During World War II, the National Company shifted its focus to military production, manufacturing critical communications equipment for the US Army and Navy. After the war, the company resumed production of amateur radio equipment, but faced increasing competition from new entrants into the market.
In the 1950s and 1960s, the National Company continued to innovate, producing some of the most advanced amateur radio equipment of the time. However, by the 1970s, the market for amateur radio equipment had shifted, with more hobbyists interested in lower-cost, imported equipment.
In 1976, the National Company was sold to the Panasonic Corporation and the brand name was eventually phased out. However, many of the designs and innovations developed by the National Company continue to be used in modern amateur radio equipment, and the company's legacy remains an important part of the history of amateur radio.
This content was generated by primarily
the ChatGPT (OpenAI), and/or
Gemini (Google), and/or
Arya (GabAI), and/or
Grok (x.AI), and/or DeepSeek artificial intelligence (AI) engine.
Some review was performed to help detect and correct any inaccuracies; however,
you are encouraged to verify the information yourself if it will be used for critical
applications. In some cases, multiple solicitations to the AI engine(s) was(were) used to assimilate
final content. Images and external hyperlinks have also been added occasionally.
Courts have ruled that AI-generated content is not subject to copyright restrictions,
but since I modify them, everything here is protected by RF Cafe copyright. Many
of the images are likewise generated and modified. Your use of this data implies
an agreement to hold totally harmless Kirt Blattenberger, RF Cafe, and any and all
of its assigns. Thank you. Here are the major categories.
Electronics & High Tech Companies | Electronics & Tech Publications | Electronics & Tech Pioneers | Electronics & Tech Principles | Tech Standards Groups & Industry Associations | Societal Influences on Technology
AI Technical Trustability Update
While working on an
update to my
RF Cafe Espresso Engineering Workbook project to add a couple calculators
about FM sidebands (available soon). The good news is that AI provided excellent
VBA code to generate a set of
Bessel function plots. The bad news is when I asked for a
table
showing at which modulation indices sidebands 0 (carrier) through 5 vanish,
none of the agents got it right. Some were really bad. The AI agents typically
explain their reason and method correctly, then go on to produces bad results.
Even after pointing out errors, subsequent results are still wrong. I do a
lot of AI work and see this often, even with subscribing to professional
versions. I ultimately generated the table myself. There is going to be a
lot of inaccurate information out there based on unverified AI queries, so
beware.
|
About RF Cafe
Copyright: 1996 - 2025 |
RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while tying up your telephone line, and a lady's voice announced "You've Got Mail" when a new message arrived... |
Copyright 1996 - 2026 All trademarks, copyrights, patents, and other rights of ownership to images
and text used on the RF Cafe website are hereby acknowledge My Hobby Website: Airplanes My Daughter's Website: EquineKingdom |
The National Company for Amateur Radio, also known as the National Radio Company,
was a major player in the development and manufacture of amateur radio equipment
during the early to mid-20th century. The company was founded in 1914 in Malden,
Massachusetts, USA, by James Millen, a skilled radio technician and inventor.
The National Company initially focused on manufacturing high-quality radio receivers and transmitters for the burgeoning amateur radio market. Millen was a skilled engineer and his products quickly gained a reputation for being well-designed and reliable. The company expanded rapidly, and by the 1920s, it had become one of the leading manufacturers of amateur radio equipment in the United States.
During World War II, the National Company shifted its focus to military production, manufacturing critical communications equipment for the US Army and Navy. After the war, the company resumed production of amateur radio equipment, but faced increasing competition from new entrants into the market.
In the 1950s and 1960s, the National Company continued to innovate, producing some of the most advanced amateur radio equipment of the time. However, by the 1970s, the market for amateur radio equipment had shifted, with more hobbyists interested in lower-cost, imported equipment.
In 1976, the National Company was sold to the Panasonic Corporation and the brand name was eventually phased out. However, many of the designs and innovations developed by the National Company continue to be used in modern amateur radio equipment, and the company's legacy remains an important part of the history of amateur radio.
This content was generated by primarily
the ChatGPT (OpenAI), and/or
Gemini (Google), and/or
Arya (GabAI), and/or
Grok (x.AI), and/or DeepSeek artificial intelligence (AI) engine.
Some review was performed to help detect and correct any inaccuracies; however,
you are encouraged to verify the information yourself if it will be used for critical
applications. In some cases, multiple solicitations to the AI engine(s) was(were) used to assimilate
final content. Images and external hyperlinks have also been added occasionally.
Courts have ruled that AI-generated content is not subject to copyright restrictions,
but since I modify them, everything here is protected by RF Cafe copyright. Many
of the images are likewise generated and modified. Your use of this data implies
an agreement to hold totally harmless Kirt Blattenberger, RF Cafe, and any and all
of its assigns. Thank you. Here are the major categories.
Electronics & High Tech Companies | Electronics & Tech Publications | Electronics & Tech Pioneers | Electronics & Tech Principles | Tech Standards Groups & Industry Associations | Societal Influences on Technology
AI Technical Trustability Update
While working on an
update to my
RF Cafe Espresso Engineering Workbook project to add a couple calculators
about FM sidebands (available soon). The good news is that AI provided excellent
VBA code to generate a set of
Bessel function plots. The bad news is when I asked for a
table
showing at which modulation indices sidebands 0 (carrier) through 5 vanish,
none of the agents got it right. Some were really bad. The AI agents typically
explain their reason and method correctly, then go on to produces bad results.
Even after pointing out errors, subsequent results are still wrong. I do a
lot of AI work and see this often, even with subscribing to professional
versions. I ultimately generated the table myself. There is going to be a
lot of inaccurate information out there based on unverified AI queries, so
beware.
|
About RF Cafe
Copyright: 1996 - 2025 |
RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while tying up your telephone line, and a lady's voice announced "You've Got Mail" when a new message arrived... |
Copyright 1996 - 2026 All trademarks, copyrights, patents, and other rights of ownership to images
and text used on the RF Cafe website are hereby acknowledge My Hobby Website: Airplanes My Daughter's Website: EquineKingdom |
The National Company for Amateur Radio, also known as the National Radio Company,
was a major player in the development and manufacture of amateur radio equipment
during the early to mid-20th century. The company was founded in 1914 in Malden,
Massachusetts, USA, by James Millen, a skilled radio technician and inventor.
The National Company initially focused on manufacturing high-quality radio receivers and transmitters for the burgeoning amateur radio market. Millen was a skilled engineer and his products quickly gained a reputation for being well-designed and reliable. The company expanded rapidly, and by the 1920s, it had become one of the leading manufacturers of amateur radio equipment in the United States.
During World War II, the National Company shifted its focus to military production, manufacturing critical communications equipment for the US Army and Navy. After the war, the company resumed production of amateur radio equipment, but faced increasing competition from new entrants into the market.
In the 1950s and 1960s, the National Company continued to innovate, producing some of the most advanced amateur radio equipment of the time. However, by the 1970s, the market for amateur radio equipment had shifted, with more hobbyists interested in lower-cost, imported equipment.
In 1976, the National Company was sold to the Panasonic Corporation and the brand name was eventually phased out. However, many of the designs and innovations developed by the National Company continue to be used in modern amateur radio equipment, and the company's legacy remains an important part of the history of amateur radio.
This content was generated by primarily
the ChatGPT (OpenAI), and/or
Gemini (Google), and/or
Arya (GabAI), and/or
Grok (x.AI), and/or DeepSeek artificial intelligence (AI) engine.
Some review was performed to help detect and correct any inaccuracies; however,
you are encouraged to verify the information yourself if it will be used for critical
applications. In some cases, multiple solicitations to the AI engine(s) was(were) used to assimilate
final content. Images and external hyperlinks have also been added occasionally.
Courts have ruled that AI-generated content is not subject to copyright restrictions,
but since I modify them, everything here is protected by RF Cafe copyright. Many
of the images are likewise generated and modified. Your use of this data implies
an agreement to hold totally harmless Kirt Blattenberger, RF Cafe, and any and all
of its assigns. Thank you. Here are the major categories.
Electronics & High Tech Companies | Electronics & Tech Publications | Electronics & Tech Pioneers | Electronics & Tech Principles | Tech Standards Groups & Industry Associations | Societal Influences on Technology
AI Technical Trustability Update
While working on an
update to my
RF Cafe Espresso Engineering Workbook project to add a couple calculators
about FM sidebands (available soon). The good news is that AI provided excellent
VBA code to generate a set of
Bessel function plots. The bad news is when I asked for a
table
showing at which modulation indices sidebands 0 (carrier) through 5 vanish,
none of the agents got it right. Some were really bad. The AI agents typically
explain their reason and method correctly, then go on to produces bad results.
Even after pointing out errors, subsequent results are still wrong. I do a
lot of AI work and see this often, even with subscribing to professional
versions. I ultimately generated the table myself. There is going to be a
lot of inaccurate information out there based on unverified AI queries, so
beware.
|
About RF Cafe
Copyright: 1996 - 2025 |
RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while tying up your telephone line, and a lady's voice announced "You've Got Mail" when a new message arrived... |
Copyright 1996 - 2026 All trademarks, copyrights, patents, and other rights of ownership to images
and text used on the RF Cafe website are hereby acknowledge My Hobby Website: Airplanes My Daughter's Website: EquineKingdom |
The National Company for Amateur Radio, also known as the National Radio Company,
was a major player in the development and manufacture of amateur radio equipment
during the early to mid-20th century. The company was founded in 1914 in Malden,
Massachusetts, USA, by James Millen, a skilled radio technician and inventor.
The National Company initially focused on manufacturing high-quality radio receivers and transmitters for the burgeoning amateur radio market. Millen was a skilled engineer and his products quickly gained a reputation for being well-designed and reliable. The company expanded rapidly, and by the 1920s, it had become one of the leading manufacturers of amateur radio equipment in the United States.
During World War II, the National Company shifted its focus to military production, manufacturing critical communications equipment for the US Army and Navy. After the war, the company resumed production of amateur radio equipment, but faced increasing competition from new entrants into the market.
In the 1950s and 1960s, the National Company continued to innovate, producing some of the most advanced amateur radio equipment of the time. However, by the 1970s, the market for amateur radio equipment had shifted, with more hobbyists interested in lower-cost, imported equipment.
In 1976, the National Company was sold to the Panasonic Corporation and the brand name was eventually phased out. However, many of the designs and innovations developed by the National Company continue to be used in modern amateur radio equipment, and the company's legacy remains an important part of the history of amateur radio.
This content was generated by primarily
the ChatGPT (OpenAI), and/or
Gemini (Google), and/or
Arya (GabAI), and/or
Grok (x.AI), and/or DeepSeek artificial intelligence (AI) engine.
Some review was performed to help detect and correct any inaccuracies; however,
you are encouraged to verify the information yourself if it will be used for critical
applications. In some cases, multiple solicitations to the AI engine(s) was(were) used to assimilate
final content. Images and external hyperlinks have also been added occasionally.
Courts have ruled that AI-generated content is not subject to copyright restrictions,
but since I modify them, everything here is protected by RF Cafe copyright. Many
of the images are likewise generated and modified. Your use of this data implies
an agreement to hold totally harmless Kirt Blattenberger, RF Cafe, and any and all
of its assigns. Thank you. Here are the major categories.
Electronics & High Tech Companies | Electronics & Tech Publications | Electronics & Tech Pioneers | Electronics & Tech Principles | Tech Standards Groups & Industry Associations | Societal Influences on Technology
AI Technical Trustability Update
While working on an
update to my
RF Cafe Espresso Engineering Workbook project to add a couple calculators
about FM sidebands (available soon). The good news is that AI provided excellent
VBA code to generate a set of
Bessel function plots. The bad news is when I asked for a
table
showing at which modulation indices sidebands 0 (carrier) through 5 vanish,
none of the agents got it right. Some were really bad. The AI agents typically
explain their reason and method correctly, then go on to produces bad results.
Even after pointing out errors, subsequent results are still wrong. I do a
lot of AI work and see this often, even with subscribing to professional
versions. I ultimately generated the table myself. There is going to be a
lot of inaccurate information out there based on unverified AI queries, so
beware.
|
About RF Cafe
Copyright: 1996 - 2025 |
RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while tying up your telephone line, and a lady's voice announced "You've Got Mail" when a new message arrived... |
Copyright 1996 - 2026 All trademarks, copyrights, patents, and other rights of ownership to images
and text used on the RF Cafe website are hereby acknowledge My Hobby Website: Airplanes My Daughter's Website: EquineKingdom |
The National Company for Amateur Radio, also known as the National Radio Company,
was a major player in the development and manufacture of amateur radio equipment
during the early to mid-20th century. The company was founded in 1914 in Malden,
Massachusetts, USA, by James Millen, a skilled radio technician and inventor.
The National Company initially focused on manufacturing high-quality radio receivers and transmitters for the burgeoning amateur radio market. Millen was a skilled engineer and his products quickly gained a reputation for being well-designed and reliable. The company expanded rapidly, and by the 1920s, it had become one of the leading manufacturers of amateur radio equipment in the United States.
During World War II, the National Company shifted its focus to military production, manufacturing critical communications equipment for the US Army and Navy. After the war, the company resumed production of amateur radio equipment, but faced increasing competition from new entrants into the market.
In the 1950s and 1960s, the National Company continued to innovate, producing some of the most advanced amateur radio equipment of the time. However, by the 1970s, the market for amateur radio equipment had shifted, with more hobbyists interested in lower-cost, imported equipment.
In 1976, the National Company was sold to the Panasonic Corporation and the brand name was eventually phased out. However, many of the designs and innovations developed by the National Company continue to be used in modern amateur radio equipment, and the company's legacy remains an important part of the history of amateur radio.
This content was generated by primarily
the ChatGPT (OpenAI), and/or
Gemini (Google), and/or
Arya (GabAI), and/or
Grok (x.AI), and/or DeepSeek artificial intelligence (AI) engine.
Some review was performed to help detect and correct any inaccuracies; however,
you are encouraged to verify the information yourself if it will be used for critical
applications. In some cases, multiple solicitations to the AI engine(s) was(were) used to assimilate
final content. Images and external hyperlinks have also been added occasionally.
Courts have ruled that AI-generated content is not subject to copyright restrictions,
but since I modify them, everything here is protected by RF Cafe copyright. Many
of the images are likewise generated and modified. Your use of this data implies
an agreement to hold totally harmless Kirt Blattenberger, RF Cafe, and any and all
of its assigns. Thank you. Here are the major categories.
Electronics & High Tech Companies | Electronics & Tech Publications | Electronics & Tech Pioneers | Electronics & Tech Principles | Tech Standards Groups & Industry Associations | Societal Influences on Technology
AI Technical Trustability Update
While working on an
update to my
RF Cafe Espresso Engineering Workbook project to add a couple calculators
about FM sidebands (available soon). The good news is that AI provided excellent
VBA code to generate a set of
Bessel function plots. The bad news is when I asked for a
table
showing at which modulation indices sidebands 0 (carrier) through 5 vanish,
none of the agents got it right. Some were really bad. The AI agents typically
explain their reason and method correctly, then go on to produces bad results.
Even after pointing out errors, subsequent results are still wrong. I do a
lot of AI work and see this often, even with subscribing to professional
versions. I ultimately generated the table myself. There is going to be a
lot of inaccurate information out there based on unverified AI queries, so
beware.
|
About RF Cafe
Copyright: 1996 - 2025 |
RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while tying up your telephone line, and a lady's voice announced "You've Got Mail" when a new message arrived... |
Copyright 1996 - 2026 All trademarks, copyrights, patents, and other rights of ownership to images
and text used on the RF Cafe website are hereby acknowledge My Hobby Website: Airplanes My Daughter's Website: EquineKingdom |
The National Company for Amateur Radio, also known as the National Radio Company,
was a major player in the development and manufacture of amateur radio equipment
during the early to mid-20th century. The company was founded in 1914 in Malden,
Massachusetts, USA, by James Millen, a skilled radio technician and inventor.
The National Company initially focused on manufacturing high-quality radio receivers and transmitters for the burgeoning amateur radio market. Millen was a skilled engineer and his products quickly gained a reputation for being well-designed and reliable. The company expanded rapidly, and by the 1920s, it had become one of the leading manufacturers of amateur radio equipment in the United States.
During World War II, the National Company shifted its focus to military production, manufacturing critical communications equipment for the US Army and Navy. After the war, the company resumed production of amateur radio equipment, but faced increasing competition from new entrants into the market.
In the 1950s and 1960s, the National Company continued to innovate, producing some of the most advanced amateur radio equipment of the time. However, by the 1970s, the market for amateur radio equipment had shifted, with more hobbyists interested in lower-cost, imported equipment.
In 1976, the National Company was sold to the Panasonic Corporation and the brand name was eventually phased out. However, many of the designs and innovations developed by the National Company continue to be used in modern amateur radio equipment, and the company's legacy remains an important part of the history of amateur radio.
This content was generated by primarily
the ChatGPT (OpenAI), and/or
Gemini (Google), and/or
Arya (GabAI), and/or
Grok (x.AI), and/or DeepSeek artificial intelligence (AI) engine.
Some review was performed to help detect and correct any inaccuracies; however,
you are encouraged to verify the information yourself if it will be used for critical
applications. In some cases, multiple solicitations to the AI engine(s) was(were) used to assimilate
final content. Images and external hyperlinks have also been added occasionally.
Courts have ruled that AI-generated content is not subject to copyright restrictions,
but since I modify them, everything here is protected by RF Cafe copyright. Many
of the images are likewise generated and modified. Your use of this data implies
an agreement to hold totally harmless Kirt Blattenberger, RF Cafe, and any and all
of its assigns. Thank you. Here are the major categories.
Electronics & High Tech Companies | Electronics & Tech Publications | Electronics & Tech Pioneers | Electronics & Tech Principles | Tech Standards Groups & Industry Associations | Societal Influences on Technology
AI Technical Trustability Update
While working on an
update to my
RF Cafe Espresso Engineering Workbook project to add a couple calculators
about FM sidebands (available soon). The good news is that AI provided excellent
VBA code to generate a set of
Bessel function plots. The bad news is when I asked for a
table
showing at which modulation indices sidebands 0 (carrier) through 5 vanish,
none of the agents got it right. Some were really bad. The AI agents typically
explain their reason and method correctly, then go on to produces bad results.
Even after pointing out errors, subsequent results are still wrong. I do a
lot of AI work and see this often, even with subscribing to professional
versions. I ultimately generated the table myself. There is going to be a
lot of inaccurate information out there based on unverified AI queries, so
beware.
|
About RF Cafe
Copyright: 1996 - 2025 |
RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while tying up your telephone line, and a lady's voice announced "You've Got Mail" when a new message arrived... |
Copyright 1996 - 2026 All trademarks, copyrights, patents, and other rights of ownership to images
and text used on the RF Cafe website are hereby acknowledge My Hobby Website: Airplanes My Daughter's Website: EquineKingdom |
The National Company for Amateur Radio, also known as the National Radio Company,
was a major player in the development and manufacture of amateur radio equipment
during the early to mid-20th century. The company was founded in 1914 in Malden,
Massachusetts, USA, by James Millen, a skilled radio technician and inventor.
The National Company initially focused on manufacturing high-quality radio receivers and transmitters for the burgeoning amateur radio market. Millen was a skilled engineer and his products quickly gained a reputation for being well-designed and reliable. The company expanded rapidly, and by the 1920s, it had become one of the leading manufacturers of amateur radio equipment in the United States.
During World War II, the National Company shifted its focus to military production, manufacturing critical communications equipment for the US Army and Navy. After the war, the company resumed production of amateur radio equipment, but faced increasing competition from new entrants into the market.
In the 1950s and 1960s, the National Company continued to innovate, producing some of the most advanced amateur radio equipment of the time. However, by the 1970s, the market for amateur radio equipment had shifted, with more hobbyists interested in lower-cost, imported equipment.
In 1976, the National Company was sold to the Panasonic Corporation and the brand name was eventually phased out. However, many of the designs and innovations developed by the National Company continue to be used in modern amateur radio equipment, and the company's legacy remains an important part of the history of amateur radio.
This content was generated by primarily
the ChatGPT (OpenAI), and/or
Gemini (Google), and/or
Arya (GabAI), and/or
Grok (x.AI), and/or DeepSeek artificial intelligence (AI) engine.
Some review was performed to help detect and correct any inaccuracies; however,
you are encouraged to verify the information yourself if it will be used for critical
applications. In some cases, multiple solicitations to the AI engine(s) was(were) used to assimilate
final content. Images and external hyperlinks have also been added occasionally.
Courts have ruled that AI-generated content is not subject to copyright restrictions,
but since I modify them, everything here is protected by RF Cafe copyright. Many
of the images are likewise generated and modified. Your use of this data implies
an agreement to hold totally harmless Kirt Blattenberger, RF Cafe, and any and all
of its assigns. Thank you. Here are the major categories.
Electronics & High Tech Companies | Electronics & Tech Publications | Electronics & Tech Pioneers | Electronics & Tech Principles | Tech Standards Groups & Industry Associations | Societal Influences on Technology
AI Technical Trustability Update
While working on an
update to my
RF Cafe Espresso Engineering Workbook project to add a couple calculators
about FM sidebands (available soon). The good news is that AI provided excellent
VBA code to generate a set of
Bessel function plots. The bad news is when I asked for a
table
showing at which modulation indices sidebands 0 (carrier) through 5 vanish,
none of the agents got it right. Some were really bad. The AI agents typically
explain their reason and method correctly, then go on to produces bad results.
Even after pointing out errors, subsequent results are still wrong. I do a
lot of AI work and see this often, even with subscribing to professional
versions. I ultimately generated the table myself. There is going to be a
lot of inaccurate information out there based on unverified AI queries, so
beware.
|
About RF Cafe
Copyright: 1996 - 2025 |
RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while tying up your telephone line, and a lady's voice announced "You've Got Mail" when a new message arrived... |
Copyright 1996 - 2026 All trademarks, copyrights, patents, and other rights of ownership to images
and text used on the RF Cafe website are hereby acknowledge My Hobby Website: Airplanes My Daughter's Website: EquineKingdom |
The National Company for Amateur Radio, also known as the National Radio Company,
was a major player in the development and manufacture of amateur radio equipment
during the early to mid-20th century. The company was founded in 1914 in Malden,
Massachusetts, USA, by James Millen, a skilled radio technician and inventor.
The National Company initially focused on manufacturing high-quality radio receivers and transmitters for the burgeoning amateur radio market. Millen was a skilled engineer and his products quickly gained a reputation for being well-designed and reliable. The company expanded rapidly, and by the 1920s, it had become one of the leading manufacturers of amateur radio equipment in the United States.
During World War II, the National Company shifted its focus to military production, manufacturing critical communications equipment for the US Army and Navy. After the war, the company resumed production of amateur radio equipment, but faced increasing competition from new entrants into the market.
In the 1950s and 1960s, the National Company continued to innovate, producing some of the most advanced amateur radio equipment of the time. However, by the 1970s, the market for amateur radio equipment had shifted, with more hobbyists interested in lower-cost, imported equipment.
In 1976, the National Company was sold to the Panasonic Corporation and the brand name was eventually phased out. However, many of the designs and innovations developed by the National Company continue to be used in modern amateur radio equipment, and the company's legacy remains an important part of the history of amateur radio.
This content was generated by primarily
the ChatGPT (OpenAI), and/or
Gemini (Google), and/or
Arya (GabAI), and/or
Grok (x.AI), and/or DeepSeek artificial intelligence (AI) engine.
Some review was performed to help detect and correct any inaccuracies; however,
you are encouraged to verify the information yourself if it will be used for critical
applications. In some cases, multiple solicitations to the AI engine(s) was(were) used to assimilate
final content. Images and external hyperlinks have also been added occasionally.
Courts have ruled that AI-generated content is not subject to copyright restrictions,
but since I modify them, everything here is protected by RF Cafe copyright. Many
of the images are likewise generated and modified. Your use of this data implies
an agreement to hold totally harmless Kirt Blattenberger, RF Cafe, and any and all
of its assigns. Thank you. Here are the major categories.
Electronics & High Tech Companies | Electronics & Tech Publications | Electronics & Tech Pioneers | Electronics & Tech Principles | Tech Standards Groups & Industry Associations | Societal Influences on Technology
AI Technical Trustability Update
While working on an
update to my
RF Cafe Espresso Engineering Workbook project to add a couple calculators
about FM sidebands (available soon). The good news is that AI provided excellent
VBA code to generate a set of
Bessel function plots. The bad news is when I asked for a
table
showing at which modulation indices sidebands 0 (carrier) through 5 vanish,
none of the agents got it right. Some were really bad. The AI agents typically
explain their reason and method correctly, then go on to produces bad results.
Even after pointing out errors, subsequent results are still wrong. I do a
lot of AI work and see this often, even with subscribing to professional
versions. I ultimately generated the table myself. There is going to be a
lot of inaccurate information out there based on unverified AI queries, so
beware.
|
About RF Cafe
Copyright: 1996 - 2025 |
RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while tying up your telephone line, and a lady's voice announced "You've Got Mail" when a new message arrived... |
Copyright 1996 - 2026 All trademarks, copyrights, patents, and other rights of ownership to images
and text used on the RF Cafe website are hereby acknowledge My Hobby Website: Airplanes My Daughter's Website: EquineKingdom |
The National Company for Amateur Radio, also known as the National Radio Company,
was a major player in the development and manufacture of amateur radio equipment
during the early to mid-20th century. The company was founded in 1914 in Malden,
Massachusetts, USA, by James Millen, a skilled radio technician and inventor.
The National Company initially focused on manufacturing high-quality radio receivers and transmitters for the burgeoning amateur radio market. Millen was a skilled engineer and his products quickly gained a reputation for being well-designed and reliable. The company expanded rapidly, and by the 1920s, it had become one of the leading manufacturers of amateur radio equipment in the United States.
During World War II, the National Company shifted its focus to military production, manufacturing critical communications equipment for the US Army and Navy. After the war, the company resumed production of amateur radio equipment, but faced increasing competition from new entrants into the market.
In the 1950s and 1960s, the National Company continued to innovate, producing some of the most advanced amateur radio equipment of the time. However, by the 1970s, the market for amateur radio equipment had shifted, with more hobbyists interested in lower-cost, imported equipment.
In 1976, the National Company was sold to the Panasonic Corporation and the brand name was eventually phased out. However, many of the designs and innovations developed by the National Company continue to be used in modern amateur radio equipment, and the company's legacy remains an important part of the history of amateur radio.
This content was generated by primarily
the ChatGPT (OpenAI), and/or
Gemini (Google), and/or
Arya (GabAI), and/or
Grok (x.AI), and/or DeepSeek artificial intelligence (AI) engine.
Some review was performed to help detect and correct any inaccuracies; however,
you are encouraged to verify the information yourself if it will be used for critical
applications. In some cases, multiple solicitations to the AI engine(s) was(were) used to assimilate
final content. Images and external hyperlinks have also been added occasionally.
Courts have ruled that AI-generated content is not subject to copyright restrictions,
but since I modify them, everything here is protected by RF Cafe copyright. Many
of the images are likewise generated and modified. Your use of this data implies
an agreement to hold totally harmless Kirt Blattenberger, RF Cafe, and any and all
of its assigns. Thank you. Here are the major categories.
Electronics & High Tech Companies | Electronics & Tech Publications | Electronics & Tech Pioneers | Electronics & Tech Principles | Tech Standards Groups & Industry Associations | Societal Influences on Technology
AI Technical Trustability Update
While working on an
update to my
RF Cafe Espresso Engineering Workbook project to add a couple calculators
about FM sidebands (available soon). The good news is that AI provided excellent
VBA code to generate a set of
Bessel function plots. The bad news is when I asked for a
table
showing at which modulation indices sidebands 0 (carrier) through 5 vanish,
none of the agents got it right. Some were really bad. The AI agents typically
explain their reason and method correctly, then go on to produces bad results.
Even after pointing out errors, subsequent results are still wrong. I do a
lot of AI work and see this often, even with subscribing to professional
versions. I ultimately generated the table myself. There is going to be a
lot of inaccurate information out there based on unverified AI queries, so
beware.
|
About RF Cafe
Copyright: 1996 - 2025 |
RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while tying up your telephone line, and a lady's voice announced "You've Got Mail" when a new message arrived... |
Copyright 1996 - 2026 All trademarks, copyrights, patents, and other rights of ownership to images
and text used on the RF Cafe website are hereby acknowledge My Hobby Website: Airplanes My Daughter's Website: EquineKingdom |
The National Company for Amateur Radio, also known as the National Radio Company,
was a major player in the development and manufacture of amateur radio equipment
during the early to mid-20th century. The company was founded in 1914 in Malden,
Massachusetts, USA, by James Millen, a skilled radio technician and inventor.
The National Company initially focused on manufacturing high-quality radio receivers and transmitters for the burgeoning amateur radio market. Millen was a skilled engineer and his products quickly gained a reputation for being well-designed and reliable. The company expanded rapidly, and by the 1920s, it had become one of the leading manufacturers of amateur radio equipment in the United States.
During World War II, the National Company shifted its focus to military production, manufacturing critical communications equipment for the US Army and Navy. After the war, the company resumed production of amateur radio equipment, but faced increasing competition from new entrants into the market.
In the 1950s and 1960s, the National Company continued to innovate, producing some of the most advanced amateur radio equipment of the time. However, by the 1970s, the market for amateur radio equipment had shifted, with more hobbyists interested in lower-cost, imported equipment.
In 1976, the National Company was sold to the Panasonic Corporation and the brand name was eventually phased out. However, many of the designs and innovations developed by the National Company continue to be used in modern amateur radio equipment, and the company's legacy remains an important part of the history of amateur radio.
This content was generated by primarily
the ChatGPT (OpenAI), and/or
Gemini (Google), and/or
Arya (GabAI), and/or
Grok (x.AI), and/or DeepSeek artificial intelligence (AI) engine.
Some review was performed to help detect and correct any inaccuracies; however,
you are encouraged to verify the information yourself if it will be used for critical
applications. In some cases, multiple solicitations to the AI engine(s) was(were) used to assimilate
final content. Images and external hyperlinks have also been added occasionally.
Courts have ruled that AI-generated content is not subject to copyright restrictions,
but since I modify them, everything here is protected by RF Cafe copyright. Many
of the images are likewise generated and modified. Your use of this data implies
an agreement to hold totally harmless Kirt Blattenberger, RF Cafe, and any and all
of its assigns. Thank you. Here are the major categories.
Electronics & High Tech Companies | Electronics & Tech Publications | Electronics & Tech Pioneers | Electronics & Tech Principles | Tech Standards Groups & Industry Associations | Societal Influences on Technology
AI Technical Trustability Update
While working on an
update to my
RF Cafe Espresso Engineering Workbook project to add a couple calculators
about FM sidebands (available soon). The good news is that AI provided excellent
VBA code to generate a set of
Bessel function plots. The bad news is when I asked for a table showing at
which modulation indices sidebands 0 (carrier) through 5 vanish, none of the
agents got it right. Some were really bad. The AI agents typically explain their
reason and method correctly, then go on to produces bad results. Even after
pointing out errors, subsequent results are still wrong. I do a lot of AI
work and see this often, even with subscribing to professional versions. I
ultimately generated the table myself. There is going to be a lot of inaccurate
information out there based on unverified AI queries, so beware.
|
About RF Cafe
Copyright: 1996 - 2025 |
RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while tying up your telephone line, and a lady's voice announced "You've Got Mail" when a new message arrived... |
Copyright 1996 - 2026 All trademarks, copyrights, patents, and other rights of ownership to images
and text used on the RF Cafe website are hereby acknowledge My Hobby Website: Airplanes My Daughter's Website: EquineKingdom |
The National Company for Amateur Radio, also known as the National Radio Company,
was a major player in the development and manufacture of amateur radio equipment
during the early to mid-20th century. The company was founded in 1914 in Malden,
Massachusetts, USA, by James Millen, a skilled radio technician and inventor.
The National Company initially focused on manufacturing high-quality radio receivers and transmitters for the burgeoning amateur radio market. Millen was a skilled engineer and his products quickly gained a reputation for being well-designed and reliable. The company expanded rapidly, and by the 1920s, it had become one of the leading manufacturers of amateur radio equipment in the United States.
During World War II, the National Company shifted its focus to military production, manufacturing critical communications equipment for the US Army and Navy. After the war, the company resumed production of amateur radio equipment, but faced increasing competition from new entrants into the market.
In the 1950s and 1960s, the National Company continued to innovate, producing some of the most advanced amateur radio equipment of the time. However, by the 1970s, the market for amateur radio equipment had shifted, with more hobbyists interested in lower-cost, imported equipment.
In 1976, the National Company was sold to the Panasonic Corporation and the brand name was eventually phased out. However, many of the designs and innovations developed by the National Company continue to be used in modern amateur radio equipment, and the company's legacy remains an important part of the history of amateur radio.
This content was generated by primarily
the ChatGPT (OpenAI), and/or
Gemini (Google), and/or
Arya (GabAI), and/or
Grok (x.AI), and/or DeepSeek artificial intelligence (AI) engine.
Some review was performed to help detect and correct any inaccuracies; however,
you are encouraged to verify the information yourself if it will be used for critical
applications. In some cases, multiple solicitations to the AI engine(s) was(were) used to assimilate
final content. Images and external hyperlinks have also been added occasionally.
Courts have ruled that AI-generated content is not subject to copyright restrictions,
but since I modify them, everything here is protected by RF Cafe copyright. Many
of the images are likewise generated and modified. Your use of this data implies
an agreement to hold totally harmless Kirt Blattenberger, RF Cafe, and any and all
of its assigns. Thank you. Here are the major categories.
Electronics & High Tech Companies | Electronics & Tech Publications | Electronics & Tech Pioneers | Electronics & Tech Principles | Tech Standards Groups & Industry Associations | Societal Influences on Technology
|
About RF Cafe
Copyright: 1996 - 2025 |
RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while tying up your telephone line, and a lady's voice announced "You've Got Mail" when a new message arrived... |
Copyright 1996 - 2026 All trademarks, copyrights, patents, and other rights of ownership to images
and text used on the RF Cafe website are hereby acknowledge My Hobby Website: Airplanes My Daughter's Website: EquineKingdom |
The National Company for Amateur Radio, also known as the National Radio Company,
was a major player in the development and manufacture of amateur radio equipment
during the early to mid-20th century. The company was founded in 1914 in Malden,
Massachusetts, USA, by James Millen, a skilled radio technician and inventor.
The National Company initially focused on manufacturing high-quality radio receivers and transmitters for the burgeoning amateur radio market. Millen was a skilled engineer and his products quickly gained a reputation for being well-designed and reliable. The company expanded rapidly, and by the 1920s, it had become one of the leading manufacturers of amateur radio equipment in the United States.
During World War II, the National Company shifted its focus to military production, manufacturing critical communications equipment for the US Army and Navy. After the war, the company resumed production of amateur radio equipment, but faced increasing competition from new entrants into the market.
In the 1950s and 1960s, the National Company continued to innovate, producing some of the most advanced amateur radio equipment of the time. However, by the 1970s, the market for amateur radio equipment had shifted, with more hobbyists interested in lower-cost, imported equipment.
In 1976, the National Company was sold to the Panasonic Corporation and the brand name was eventually phased out. However, many of the designs and innovations developed by the National Company continue to be used in modern amateur radio equipment, and the company's legacy remains an important part of the history of amateur radio.
This content was generated by primarily
the ChatGPT (OpenAI), and/or
Gemini (Google), and/or
Arya (GabAI), and/or
Grok (x.AI), and/or DeepSeek artificial intelligence (AI) engine.
Some review was performed to help detect and correct any inaccuracies; however,
you are encouraged to verify the information yourself if it will be used for critical
applications. In some cases, multiple solicitations to the AI engine(s) was(were) used to assimilate
final content. Images and external hyperlinks have also been added occasionally.
Courts have ruled that AI-generated content is not subject to copyright restrictions,
but since I modify them, everything here is protected by RF Cafe copyright. Many
of the images are likewise generated and modified. Your use of this data implies
an agreement to hold totally harmless Kirt Blattenberger, RF Cafe, and any and all
of its assigns. Thank you. Here are the major categories.
Electronics & High Tech Companies | Electronics & Tech Publications | Electronics & Tech Pioneers | Electronics & Tech Principles | Tech Standards Groups & Industry Associations | Societal Influences on Technology
|
About RF Cafe
Copyright: 1996 - 2025 |
RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while tying up your telephone line, and a lady's voice announced "You've Got Mail" when a new message arrived... |
Copyright 1996 - 2026 All trademarks, copyrights, patents, and other rights of ownership to images
and text used on the RF Cafe website are hereby acknowledge My Hobby Website: Airplanes My Daughter's Website: EquineKingdom |
The National Company for Amateur Radio, also known as the National Radio Company,
was a major player in the development and manufacture of amateur radio equipment
during the early to mid-20th century. The company was founded in 1914 in Malden,
Massachusetts, USA, by James Millen, a skilled radio technician and inventor.
The National Company initially focused on manufacturing high-quality radio receivers and transmitters for the burgeoning amateur radio market. Millen was a skilled engineer and his products quickly gained a reputation for being well-designed and reliable. The company expanded rapidly, and by the 1920s, it had become one of the leading manufacturers of amateur radio equipment in the United States.
During World War II, the National Company shifted its focus to military production, manufacturing critical communications equipment for the US Army and Navy. After the war, the company resumed production of amateur radio equipment, but faced increasing competition from new entrants into the market.
In the 1950s and 1960s, the National Company continued to innovate, producing some of the most advanced amateur radio equipment of the time. However, by the 1970s, the market for amateur radio equipment had shifted, with more hobbyists interested in lower-cost, imported equipment.
In 1976, the National Company was sold to the Panasonic Corporation and the brand name was eventually phased out. However, many of the designs and innovations developed by the National Company continue to be used in modern amateur radio equipment, and the company's legacy remains an important part of the history of amateur radio.
This content was generated by primarily
the ChatGPT (OpenAI), and/or
Gemini (Google), and/or
Arya (GabAI), and/or
Grok (x.AI), and/or DeepSeek artificial intelligence (AI) engine.
Some review was performed to help detect and correct any inaccuracies; however,
you are encouraged to verify the information yourself if it will be used for critical
applications. In some cases, multiple solicitations to the AI engine(s) was(were) used to assimilate
final content. Images and external hyperlinks have also been added occasionally.
Courts have ruled that AI-generated content is not subject to copyright restrictions,
but since I modify them, everything here is protected by RF Cafe copyright. Many
of the images are likewise generated and modified. Your use of this data implies
an agreement to hold totally harmless Kirt Blattenberger, RF Cafe, and any and all
of its assigns. Thank you. Here are the major categories.
Electronics & High Tech Companies | Electronics & Tech Publications | Electronics & Tech Pioneers | Electronics & Tech Principles | Tech Standards Groups & Industry Associations | Societal Influences on Technology
|
About RF Cafe
Copyright: 1996 - 2025 |
RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while tying up your telephone line, and a lady's voice announced "You've Got Mail" when a new message arrived... |
Copyright 1996 - 2026 All trademarks, copyrights, patents, and other rights of ownership to images
and text used on the RF Cafe website are hereby acknowledge My Hobby Website: Airplanes My Daughter's Website: EquineKingdom |
The National Company for Amateur Radio, also known as the National Radio Company,
was a major player in the development and manufacture of amateur radio equipment
during the early to mid-20th century. The company was founded in 1914 in Malden,
Massachusetts, USA, by James Millen, a skilled radio technician and inventor.
The National Company initially focused on manufacturing high-quality radio receivers and transmitters for the burgeoning amateur radio market. Millen was a skilled engineer and his products quickly gained a reputation for being well-designed and reliable. The company expanded rapidly, and by the 1920s, it had become one of the leading manufacturers of amateur radio equipment in the United States.
During World War II, the National Company shifted its focus to military production, manufacturing critical communications equipment for the US Army and Navy. After the war, the company resumed production of amateur radio equipment, but faced increasing competition from new entrants into the market.
In the 1950s and 1960s, the National Company continued to innovate, producing some of the most advanced amateur radio equipment of the time. However, by the 1970s, the market for amateur radio equipment had shifted, with more hobbyists interested in lower-cost, imported equipment.
In 1976, the National Company was sold to the Panasonic Corporation and the brand name was eventually phased out. However, many of the designs and innovations developed by the National Company continue to be used in modern amateur radio equipment, and the company's legacy remains an important part of the history of amateur radio.
This content was generated by primarily
the ChatGPT (OpenAI), and/or
Gemini (Google), and/or
Arya (GabAI), and/or
Grok 3 (x.AI) artificial intelligence (AI) engine.
Some review was performed to help detect and correct any inaccuracies; however,
you are encouraged to verify the information yourself if it will be used for critical
applications. In some cases, multiple solicitations to the AI engine(s) was(were) used to assimilate
final content. Images and external hyperlinks have also been added occasionally.
Courts have ruled that AI-generated content is not subject to copyright restrictions,
but since I modify them, everything here is protected by RF Cafe copyright. Many
of the images are likewise generated and modified. Your use of this data implies
an agreement to hold totally harmless Kirt Blattenberger, RF Cafe, and any and all
of its assigns. Thank you. Here are the major categories.
Electronics & High Tech Companies | Electronics & Tech Publications | Electronics & Tech Pioneers | Electronics & Tech Principles | Tech Standards Groups & Industry Associations | Societal Influences on Technology
|
About RF Cafe
Copyright: 1996 - 2025 |
RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while tying up your telephone line, and a lady's voice announced "You've Got Mail" when a new message arrived... |
Copyright 1996 - 2026 All trademarks, copyrights, patents, and other rights of ownership to images
and text used on the RF Cafe website are hereby acknowledge My Hobby Website: Airplanes My Daughter's Website: EquineKingdom |
The National Company for Amateur Radio, also known as the National Radio Company,
was a major player in the development and manufacture of amateur radio equipment
during the early to mid-20th century. The company was founded in 1914 in Malden,
Massachusetts, USA, by James Millen, a skilled radio technician and inventor.
The National Company initially focused on manufacturing high-quality radio receivers and transmitters for the burgeoning amateur radio market. Millen was a skilled engineer and his products quickly gained a reputation for being well-designed and reliable. The company expanded rapidly, and by the 1920s, it had become one of the leading manufacturers of amateur radio equipment in the United States.
During World War II, the National Company shifted its focus to military production, manufacturing critical communications equipment for the US Army and Navy. After the war, the company resumed production of amateur radio equipment, but faced increasing competition from new entrants into the market.
In the 1950s and 1960s, the National Company continued to innovate, producing some of the most advanced amateur radio equipment of the time. However, by the 1970s, the market for amateur radio equipment had shifted, with more hobbyists interested in lower-cost, imported equipment.
In 1976, the National Company was sold to the Panasonic Corporation and the brand name was eventually phased out. However, many of the designs and innovations developed by the National Company continue to be used in modern amateur radio equipment, and the company's legacy remains an important part of the history of amateur radio.
This content was generated by primarily
the ChatGPT (OpenAI), and/or
Gemini (Google), and/or
Arya (GabAI), and/or
Grok 3 (x.AI) artificial intelligence (AI) engine.
Some review was performed to help detect and correct any inaccuracies; however,
you are encouraged to verify the information yourself if it will be used for critical
applications. In some cases, multiple solicitations to the AI engine(s) was(were) used to assimilate
final content. Images and external hyperlinks have also been added occasionally.
Courts have ruled that AI-generated content is not subject to copyright restrictions,
but since I modify them, everything here is protected by RF Cafe copyright. Many
of the images are likewise generated and modified. Your use of this data implies
an agreement to hold totally harmless Kirt Blattenberger, RF Cafe, and any and all
of its assigns. Thank you. Here are the major categories.
Electronics & High Tech Companies | Electronics & Tech Publications | Electronics & Tech Pioneers | Electronics & Tech Principles | Tech Standards Groups & Industry Associations | Societal Influences on Technology
|
About RF Cafe
Copyright: 1996 - 2025 |
RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while tying up your telephone line, and a lady's voice announced "You've Got Mail" when a new message arrived... |
Copyright 1996 - 2026 All trademarks, copyrights, patents, and other rights of ownership to images
and text used on the RF Cafe website are hereby acknowledge My Hobby Website: Airplanes My Daughter's Website: EquineKingdom |
The National Company for Amateur Radio, also known as the National Radio Company,
was a major player in the development and manufacture of amateur radio equipment
during the early to mid-20th century. The company was founded in 1914 in Malden,
Massachusetts, USA, by James Millen, a skilled radio technician and inventor.
The National Company initially focused on manufacturing high-quality radio receivers and transmitters for the burgeoning amateur radio market. Millen was a skilled engineer and his products quickly gained a reputation for being well-designed and reliable. The company expanded rapidly, and by the 1920s, it had become one of the leading manufacturers of amateur radio equipment in the United States.
During World War II, the National Company shifted its focus to military production, manufacturing critical communications equipment for the US Army and Navy. After the war, the company resumed production of amateur radio equipment, but faced increasing competition from new entrants into the market.
In the 1950s and 1960s, the National Company continued to innovate, producing some of the most advanced amateur radio equipment of the time. However, by the 1970s, the market for amateur radio equipment had shifted, with more hobbyists interested in lower-cost, imported equipment.
In 1976, the National Company was sold to the Panasonic Corporation and the brand name was eventually phased out. However, many of the designs and innovations developed by the National Company continue to be used in modern amateur radio equipment, and the company's legacy remains an important part of the history of amateur radio.
This content was generated by primarily
the ChatGPT (OpenAI), and/or
Gemini (Google), and/or
Arya (GabAI), and/or
Grok 3 (x.AI) artificial intelligence (AI) engine.
Some review was performed to help detect and correct any inaccuracies; however,
you are encouraged to verify the information yourself if it will be used for critical
applications. In some cases, multiple solicitations to the AI engine(s) was(were) used to assimilate
final content. Images and external hyperlinks have also been added occasionally.
Courts have ruled that AI-generated content is not subject to copyright restrictions,
but since I modify them, everything here is protected by RF Cafe copyright. Many
of the images are likewise generated and modified. Your use of this data implies
an agreement to hold totally harmless Kirt Blattenberger, RF Cafe, and any and all
of its assigns. Thank you. Here are the major categories.
Electronics & High Tech Companies | Electronics & Tech Publications | Electronics & Tech Pioneers | Electronics & Tech Principles | Tech Standards Groups & Industry Associations | Societal Influences on Technology
|
About RF Cafe
Copyright: 1996 - 2025 |
RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while tying up your telephone line, and a lady's voice announced "You've Got Mail" when a new message arrived... |
Copyright 1996 - 2026 All trademarks, copyrights, patents, and other rights of ownership to images
and text used on the RF Cafe website are hereby acknowledge My Hobby Website: Airplanes My Daughter's Website: EquineKingdom |
The National Company for Amateur Radio, also known as the National Radio Company,
was a major player in the development and manufacture of amateur radio equipment
during the early to mid-20th century. The company was founded in 1914 in Malden,
Massachusetts, USA, by James Millen, a skilled radio technician and inventor.
The National Company initially focused on manufacturing high-quality radio receivers and transmitters for the burgeoning amateur radio market. Millen was a skilled engineer and his products quickly gained a reputation for being well-designed and reliable. The company expanded rapidly, and by the 1920s, it had become one of the leading manufacturers of amateur radio equipment in the United States.
During World War II, the National Company shifted its focus to military production, manufacturing critical communications equipment for the US Army and Navy. After the war, the company resumed production of amateur radio equipment, but faced increasing competition from new entrants into the market.
In the 1950s and 1960s, the National Company continued to innovate, producing some of the most advanced amateur radio equipment of the time. However, by the 1970s, the market for amateur radio equipment had shifted, with more hobbyists interested in lower-cost, imported equipment.
In 1976, the National Company was sold to the Panasonic Corporation and the brand name was eventually phased out. However, many of the designs and innovations developed by the National Company continue to be used in modern amateur radio equipment, and the company's legacy remains an important part of the history of amateur radio.
This content was generated by primarily
the ChatGPT (OpenAI), and/or
Gemini (Google), and/or
Arya (GabAI), and/or
Grok 3 (x.AI) artificial intelligence (AI) engine.
Some review was performed to help detect and correct any inaccuracies; however,
you are encouraged to verify the information yourself if it will be used for critical
applications. In some cases, multiple solicitations to the AI engine(s) was(were) used to assimilate
final content. Images and external hyperlinks have also been added occasionally.
Courts have ruled that AI-generated content is not subject to copyright restrictions,
but since I modify them, everything here is protected by RF Cafe copyright. Many
of the images are likewise generated and modified. Your use of this data implies
an agreement to hold totally harmless Kirt Blattenberger, RF Cafe, and any and all
of its assigns. Thank you. Here are the major categories.
Electronics & High Tech Companies | Electronics & Tech Publications | Electronics & Tech Pioneers | Electronics & Tech Principles | Tech Standards Groups & Industry Associations | Societal Influences on Technology
|
About RF Cafe
Copyright: 1996 - 2025 |
RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while tying up your telephone line, and a lady's voice announced "You've Got Mail" when a new message arrived... |
Copyright 1996 - 2026 All trademarks, copyrights, patents, and other rights of ownership to images
and text used on the RF Cafe website are hereby acknowledge My Hobby Website: Airplanes My Daughter's Website: EquineKingdom |
The National Company for Amateur Radio, also known as the National Radio Company,
was a major player in the development and manufacture of amateur radio equipment
during the early to mid-20th century. The company was founded in 1914 in Malden,
Massachusetts, USA, by James Millen, a skilled radio technician and inventor.
The National Company initially focused on manufacturing high-quality radio receivers and transmitters for the burgeoning amateur radio market. Millen was a skilled engineer and his products quickly gained a reputation for being well-designed and reliable. The company expanded rapidly, and by the 1920s, it had become one of the leading manufacturers of amateur radio equipment in the United States.
During World War II, the National Company shifted its focus to military production, manufacturing critical communications equipment for the US Army and Navy. After the war, the company resumed production of amateur radio equipment, but faced increasing competition from new entrants into the market.
In the 1950s and 1960s, the National Company continued to innovate, producing some of the most advanced amateur radio equipment of the time. However, by the 1970s, the market for amateur radio equipment had shifted, with more hobbyists interested in lower-cost, imported equipment.
In 1976, the National Company was sold to the Panasonic Corporation and the brand name was eventually phased out. However, many of the designs and innovations developed by the National Company continue to be used in modern amateur radio equipment, and the company's legacy remains an important part of the history of amateur radio.
This content was generated by primarily
the ChatGPT (OpenAI), and/or
Gemini (Google), and/or
Arya (GabAI), and/or
Grok 3 (x.AI) artificial intelligence (AI) engine.
Some review was performed to help detect and correct any inaccuracies; however,
you are encouraged to verify the information yourself if it will be used for critical
applications. In some cases, multiple solicitations to the AI engine(s) was(were) used to assimilate
final content. Images and external hyperlinks have also been added occasionally.
Courts have ruled that AI-generated content is not subject to copyright restrictions,
but since I modify them, everything here is protected by RF Cafe copyright. Many
of the images are likewise generated and modified. Your use of this data implies
an agreement to hold totally harmless Kirt Blattenberger, RF Cafe, and any and all
of its assigns. Thank you. Here are the major categories.
Electronics & High Tech Companies | Electronics & Tech Publications | Electronics & Tech Pioneers | Electronics & Tech Principles | Tech Standards Groups & Industry Associations | Societal Influences on Technology
|
About RF Cafe
Copyright: 1996 - 2025 |
RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while tying up your telephone line, and a lady's voice announced "You've Got Mail" when a new message arrived... |
Copyright 1996 - 2026 All trademarks, copyrights, patents, and other rights of ownership to images
and text used on the RF Cafe website are hereby acknowledge My Hobby Website: Airplanes My Daughter's Website: EquineKingdom |
The National Company for Amateur Radio, also known as the National Radio Company,
was a major player in the development and manufacture of amateur radio equipment
during the early to mid-20th century. The company was founded in 1914 in Malden,
Massachusetts, USA, by James Millen, a skilled radio technician and inventor.
The National Company initially focused on manufacturing high-quality radio receivers and transmitters for the burgeoning amateur radio market. Millen was a skilled engineer and his products quickly gained a reputation for being well-designed and reliable. The company expanded rapidly, and by the 1920s, it had become one of the leading manufacturers of amateur radio equipment in the United States.
During World War II, the National Company shifted its focus to military production, manufacturing critical communications equipment for the US Army and Navy. After the war, the company resumed production of amateur radio equipment, but faced increasing competition from new entrants into the market.
In the 1950s and 1960s, the National Company continued to innovate, producing some of the most advanced amateur radio equipment of the time. However, by the 1970s, the market for amateur radio equipment had shifted, with more hobbyists interested in lower-cost, imported equipment.
In 1976, the National Company was sold to the Panasonic Corporation and the brand name was eventually phased out. However, many of the designs and innovations developed by the National Company continue to be used in modern amateur radio equipment, and the company's legacy remains an important part of the history of amateur radio.
This content was generated by primarily
the ChatGPT (OpenAI), and/or
Gemini (Google), and/or
Arya (GabAI), and/or
Grok 3 (x.AI) artificial intelligence (AI) engine.
Some review was performed to help detect and correct any inaccuracies; however,
you are encouraged to verify the information yourself if it will be used for critical
applications. In some cases, multiple solicitations to the AI engine(s) was(were) used to assimilate
final content. Images and external hyperlinks have also been added occasionally.
Courts have ruled that AI-generated content is not subject to copyright restrictions,
but since I modify them, everything here is protected by RF Cafe copyright. Many
of the images are likewise generated and modified. Your use of this data implies
an agreement to hold totally harmless Kirt Blattenberger, RF Cafe, and any and all
of its assigns. Thank you. Here are the major categories.
Electronics & High Tech Companies | Electronics & Tech Publications | Electronics & Tech Pioneers | Electronics & Tech Principles | Tech Standards Groups & Industry Associations | Societal Influences on Technology
|
About RF Cafe
Copyright: 1996 - 2025 |
RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while tying up your telephone line, and a lady's voice announced "You've Got Mail" when a new message arrived... |
Copyright 1996 - 2026 All trademarks, copyrights, patents, and other rights of ownership to images
and text used on the RF Cafe website are hereby acknowledge My Hobby Website: Airplanes My Daughter's Website: EquineKingdom |
The National Company for Amateur Radio, also known as the National Radio Company,
was a major player in the development and manufacture of amateur radio equipment
during the early to mid-20th century. The company was founded in 1914 in Malden,
Massachusetts, USA, by James Millen, a skilled radio technician and inventor.
The National Company initially focused on manufacturing high-quality radio receivers and transmitters for the burgeoning amateur radio market. Millen was a skilled engineer and his products quickly gained a reputation for being well-designed and reliable. The company expanded rapidly, and by the 1920s, it had become one of the leading manufacturers of amateur radio equipment in the United States.
During World War II, the National Company shifted its focus to military production, manufacturing critical communications equipment for the US Army and Navy. After the war, the company resumed production of amateur radio equipment, but faced increasing competition from new entrants into the market.
In the 1950s and 1960s, the National Company continued to innovate, producing some of the most advanced amateur radio equipment of the time. However, by the 1970s, the market for amateur radio equipment had shifted, with more hobbyists interested in lower-cost, imported equipment.
In 1976, the National Company was sold to the Panasonic Corporation and the brand name was eventually phased out. However, many of the designs and innovations developed by the National Company continue to be used in modern amateur radio equipment, and the company's legacy remains an important part of the history of amateur radio.
This content was generated by primarily
the ChatGPT (OpenAI), and/or
Gemini (Google), and/or
Arya (GabAI), and/or
Grok 3 (x.AI) artificial intelligence (AI) engine.
Some review was performed to help detect and correct any inaccuracies; however,
you are encouraged to verify the information yourself if it will be used for critical
applications. In some cases, multiple solicitations to the AI engine(s) was(were) used to assimilate
final content. Images and external hyperlinks have also been added occasionally.
Courts have ruled that AI-generated content is not subject to copyright restrictions,
but since I modify them, everything here is protected by RF Cafe copyright. Many
of the images are likewise generated and modified. Your use of this data implies
an agreement to hold totally harmless Kirt Blattenberger, RF Cafe, and any and all
of its assigns. Thank you. Here are the major categories.
Electronics & High Tech Companies | Electronics & Tech Publications | Electronics & Tech Pioneers | Electronics & Tech Principles | Tech Standards Groups & Industry Associations | Societal Influences on Technology
|
About RF Cafe
Copyright: 1996 - 2025 |
RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while tying up your telephone line, and a lady's voice announced "You've Got Mail" when a new message arrived... |
Copyright 1996 - 2026 All trademarks, copyrights, patents, and other rights of ownership to images
and text used on the RF Cafe website are hereby acknowledge My Hobby Website: Airplanes My Daughter's Website: EquineKingdom |
The National Company for Amateur Radio, also known as the National Radio Company,
was a major player in the development and manufacture of amateur radio equipment
during the early to mid-20th century. The company was founded in 1914 in Malden,
Massachusetts, USA, by James Millen, a skilled radio technician and inventor.
The National Company initially focused on manufacturing high-quality radio receivers and transmitters for the burgeoning amateur radio market. Millen was a skilled engineer and his products quickly gained a reputation for being well-designed and reliable. The company expanded rapidly, and by the 1920s, it had become one of the leading manufacturers of amateur radio equipment in the United States.
During World War II, the National Company shifted its focus to military production, manufacturing critical communications equipment for the US Army and Navy. After the war, the company resumed production of amateur radio equipment, but faced increasing competition from new entrants into the market.
In the 1950s and 1960s, the National Company continued to innovate, producing some of the most advanced amateur radio equipment of the time. However, by the 1970s, the market for amateur radio equipment had shifted, with more hobbyists interested in lower-cost, imported equipment.
In 1976, the National Company was sold to the Panasonic Corporation and the brand name was eventually phased out. However, many of the designs and innovations developed by the National Company continue to be used in modern amateur radio equipment, and the company's legacy remains an important part of the history of amateur radio.
This content was generated by primarily
the ChatGPT (OpenAI), and/or
Gemini (Google), and/or
Arya (GabAI), and/or
Grok 3 (x.AI) artificial intelligence (AI) engine.
Some review was performed to help detect and correct any inaccuracies; however,
you are encouraged to verify the information yourself if it will be used for critical
applications. In some cases, multiple solicitations to the AI engine(s) was(were) used to assimilate
final content. Images and external hyperlinks have also been added occasionally.
Courts have ruled that AI-generated content is not subject to copyright restrictions,
but since I modify them, everything here is protected by RF Cafe copyright. Many
of the images are likewise generated and modified. Your use of this data implies
an agreement to hold totally harmless Kirt Blattenberger, RF Cafe, and any and all
of its assigns. Thank you. Here are the major categories.
Electronics & High Tech Companies | Electronics & Tech Publications | Electronics & Tech Pioneers | Electronics & Tech Principles | Tech Standards Groups & Industry Associations | Societal Influences on Technology
|
About RF Cafe
Copyright: 1996 - 2025 |
RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while tying up your telephone line, and a lady's voice announced "You've Got Mail" when a new message arrived... |
Copyright 1996 - 2026 All trademarks, copyrights, patents, and other rights of ownership to images
and text used on the RF Cafe website are hereby acknowledge My Hobby Website: Airplanes My Daughter's Website: EquineKingdom |
The National Company for Amateur Radio, also known as the National Radio Company,
was a major player in the development and manufacture of amateur radio equipment
during the early to mid-20th century. The company was founded in 1914 in Malden,
Massachusetts, USA, by James Millen, a skilled radio technician and inventor.
The National Company initially focused on manufacturing high-quality radio receivers and transmitters for the burgeoning amateur radio market. Millen was a skilled engineer and his products quickly gained a reputation for being well-designed and reliable. The company expanded rapidly, and by the 1920s, it had become one of the leading manufacturers of amateur radio equipment in the United States.
During World War II, the National Company shifted its focus to military production, manufacturing critical communications equipment for the US Army and Navy. After the war, the company resumed production of amateur radio equipment, but faced increasing competition from new entrants into the market.
In the 1950s and 1960s, the National Company continued to innovate, producing some of the most advanced amateur radio equipment of the time. However, by the 1970s, the market for amateur radio equipment had shifted, with more hobbyists interested in lower-cost, imported equipment.
In 1976, the National Company was sold to the Panasonic Corporation and the brand name was eventually phased out. However, many of the designs and innovations developed by the National Company continue to be used in modern amateur radio equipment, and the company's legacy remains an important part of the history of amateur radio.
This content was generated by primarily
the ChatGPT (OpenAI), and/or
Gemini (Google), and/or
Arya (GabAI), and/or
Grok 3 (x.AI) artificial intelligence (AI) engine.
Some review was performed to help detect and correct any inaccuracies; however,
you are encouraged to verify the information yourself if it will be used for critical
applications. In some cases, multiple solicitations to the AI engine(s) was(were) used to assimilate
final content. Images and external hyperlinks have also been added occasionally.
Courts have ruled that AI-generated content is not subject to copyright restrictions,
but since I modify them, everything here is protected by RF Cafe copyright. Many
of the images are likewise generated and modified. Your use of this data implies
an agreement to hold totally harmless Kirt Blattenberger, RF Cafe, and any and all
of its assigns. Thank you. Here are the major categories.
Electronics & High Tech Companies | Electronics & Tech Publications | Electronics & Tech Pioneers | Electronics & Tech Principles | Tech Standards Groups & Industry Associations | Societal Influences on Technology
|
About RF Cafe
Copyright: 1996 - 2025 |
RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while tying up your telephone line, and a lady's voice announced "You've Got Mail" when a new message arrived... |
Copyright 1996 - 2026 All trademarks, copyrights, patents, and other rights of ownership to images
and text used on the RF Cafe website are hereby acknowledge My Hobby Website: Airplanes My Daughter's Website: EquineKingdom |
The National Company for Amateur Radio, also known as the National Radio Company,
was a major player in the development and manufacture of amateur radio equipment
during the early to mid-20th century. The company was founded in 1914 in Malden,
Massachusetts, USA, by James Millen, a skilled radio technician and inventor.
The National Company initially focused on manufacturing high-quality radio receivers and transmitters for the burgeoning amateur radio market. Millen was a skilled engineer and his products quickly gained a reputation for being well-designed and reliable. The company expanded rapidly, and by the 1920s, it had become one of the leading manufacturers of amateur radio equipment in the United States.
During World War II, the National Company shifted its focus to military production, manufacturing critical communications equipment for the US Army and Navy. After the war, the company resumed production of amateur radio equipment, but faced increasing competition from new entrants into the market.
In the 1950s and 1960s, the National Company continued to innovate, producing some of the most advanced amateur radio equipment of the time. However, by the 1970s, the market for amateur radio equipment had shifted, with more hobbyists interested in lower-cost, imported equipment.
In 1976, the National Company was sold to the Panasonic Corporation and the brand name was eventually phased out. However, many of the designs and innovations developed by the National Company continue to be used in modern amateur radio equipment, and the company's legacy remains an important part of the history of amateur radio.
This content was generated by primarily
the ChatGPT (OpenAI), and/or
Gemini (Google), and/or
Arya (GabAI), and/or
Grok 3 (x.AI) artificial intelligence (AI) engine.
Some review was performed to help detect and correct any inaccuracies; however,
you are encouraged to verify the information yourself if it will be used for critical
applications. In some cases, multiple solicitations to the AI engine(s) was(were) used to assimilate
final content. Images and external hyperlinks have also been added occasionally.
Courts have ruled that AI-generated content is not subject to copyright restrictions,
but since I modify them, everything here is protected by RF Cafe copyright. Many
of the images are likewise generated and modified. Your use of this data implies
an agreement to hold totally harmless Kirt Blattenberger, RF Cafe, and any and all
of its assigns. Thank you. Here are the major categories.
Electronics & High Tech Companies | Electronics & Tech Publications | Electronics & Tech Pioneers | Electronics & Tech Principles | Tech Standards Groups & Industry Associations | Societal Influences on Technology
|
About RF Cafe
Copyright: 1996 - 2025 |
RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while tying up your telephone line, and a lady's voice announced "You've Got Mail" when a new message arrived... |
Copyright 1996 - 2026 All trademarks, copyrights, patents, and other rights of ownership to images
and text used on the RF Cafe website are hereby acknowledge My Hobby Website: Airplanes My Daughter's Website: EquineKingdom |
