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Videos for Engineers Archive - 26

Videos for Engineers - RF CafeThis archive links to the many video and audio files that have been featured on RF Cafe.

| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 |
| 16 | 17 | 18 |19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 |

Note: There have been other videos posted, but I often forget to link to them on this page. Please use the website Search box at the at the top of the page to look for something you don't see here since many of the videos I have featured are not on these archive pages. Thanks.

 

Ham Radio Documentary Videos

Ham Radio on TV, in Movies, & Documentaries - RF CafeThe first video below is my favorite. It is a one-minute clip from a 1960s episode of "The Twilight Zone" television show. It is an outrageous slam on amateur radio operators by a couple neighbor family whose radio and TV shows are being interrupted by interference. Dad looks out the window and sees what are actually television antennas on the guy's roof and when Mom asks if there is anything they can do about the neighbor, he walks toward the telephone saying he can at least check to find out whether neighbor man has a license to operate. Mom then says, "Do you think you should, Stu? Those men seem kind of...threatening somehow." Those d**n evil Hams! As you might expect if your are familiar with the series, it turned out to be aliens making contact with Earthlings...

3/30/2020

Highway Patrol TV Show: "Radioactive"

Highway Patrol TV Show: "Radioactive" - RF Cafe Video for EngineersQST reader Dave Berman, WA2PAY, wrote in the March 2020 issue's "Letters from Our Members" column about an episode of the old "Highway Patrol" television show entitled, "Radioactive," wherein the ARRL (American Radio Relay League" is mentioned and Ham radio operator Pat Conway plays a lead role in the show. Broderick Crawford stars as head highway patrolman Dan Mathews. I did some screen shots of Mel's shack showing the massive transmitter cabinet and the receiving station desk. On a table across the room is a Precision Apparatus Co. E-200-C Signal Generator. Do you recognize any of the other equipment? Note on the chalkboard that the nuclear scientist has beryllium misspelled as "berilium," unless he happens to be an Indonesian, in which case it's OK...

2/22/2020

Hazel TV Episode "Stop Rockin' Our Reception"

Hazel TV Episode "Stop Rockin' Our Reception" - RF Cafe Video for EngineersQST reader George P. Orphan, KG4DXJ, wrote in the February 2020 issue's "Letters from Our Members" column about an episode of the old "Hazel" television show entitled, "Stop Rockin' Our Reception," where interference on the Baxters' TV set was blamed on the "shortwave set" operated by a teenager, Bruce, who had recently moved in down the street. George Baxter, the household's impulsive lawyer father, was convinced enough that Bruce, a friend of his son, Harold, was responsible that he paid a visit to the boy's house and spoke to his father about it. Bruce politely informs Mr. B that unless his television was was manufactured before 1950, it was unlikely that his operations on the 10−meter band would be causing the interference, but it fell on deaf ears. Shortly thereafter, a power company investigator was seen walking around the front yard with a box bearing a loop antenna on the top of it. At the request of Bruce's father...

1/20/2020

Top 20 Countries by Number of Internet Users

Top 20 Countries by Number of Internet Users - RF Cafe Video for EngineersHere is a really interesting animation of the world's top 20 country ranked by the number of Internet users in those countries. It runs (as of this posting date) from 1990 through 2019. I have not verified the numbers used by the Animate Stats producers, but the results do not seem unreasonable. Given the the U.S. Department of Defense's research arm, Defense Advanced Research Projects Agency (DARPA), created the Advanced Research Projects Agency Network (ARPANET) that eventually became the Internet, showing the U.S. as the run-away leader in the beginning is not surprising. Around 1996, things begin to change quickly as Japan advances, but it is in 2000 when the Internet user landscape really becomes dynamic ...

9/16/2019

Changing the Light Bulb on a 1,500' Tower - A Drone's-Eye View

Changing the Light Bulb on a 1,500' Tower - RF CafeBack in 2012, I posted a video of the PBS "Frontline" show (Cell Tower Deaths) that highlighted the dangers cell tower climber technicians face while working for very low wages. Other news stories since then have reported on new regulations from OSHA and other agencies that have helped make the safety issue better, but I haven't seen anything on whether the pay has gotten any better. There are lots of videos and photos online of tower climbers all over the world, but this one showing tower climber Kevin Schmidt making the ascension to the very top of the now inactive KDLT TV analog broadcast antenna near Salem, SD, is unique in that the recording was made from a drone platform. It has more than 12 million views. Capturing this kind of video requires a drone with a wireless live feed so the pilot ...

5/17/2019

Acorns in Microwave Antenna

Acorns in Microwave Antenna - RF Cafe Video for EngineersThis you need to see. The full story behind this video is unknown, but supposedly customers were complaining about poor reception associated with the Bear Creek Road microwave station somewhere in northern California. Upon inspection, the technicians discovered a small hole in the radome. When the cover was pulled away, according to the video somewhere between 35 to 50 gallons of acorns spilled out. You can see the bulge in the radome before emptying. The tech probably thought the water drain hole was clogged and it was full of water. From a National Geographic story: "Walter Koenig, a senior scientist with the Cornell Laboratory of Ornithology, says he's pretty sure the the acorn woodpecker ..."

5/16/2019

Bombshell: The Hedy Lamarr Story

Bombshell: The Hedy Lamarr Story - RF Cafe Video for EngineersBy now, most people involved with spread spectrum communications are (or should be) aware that Hollywood starlet Hedy Lamarr is credited for being the first to suggest a frequency hopping scheme for secure communications. If you do a Google search on Hedy Lamarr and spread spectrum, you see that except for a few mentions on tech websites, it has only been in the news since the end of the last decade. Scientific American magazine ran an article titled, "Hedy Lamarr: Not Just a Pretty Face," in 2008. Google honored her in 2015 with a Doodle on their homepage. "The most beautiful woman in the world," with the assistance of her co-inventor-composer George Antheil ...

1/23/2018

Lenny & the Squigtones - "The Jolliest Fat Man"

Lenny & the Squigtones (The Jolliest Fat Man) - RF Cafe Video for EngineersMost people who were around in the 1970s remember the sitcom "Laverne & Shirley." It was popular as a part of the whole 1950s renaissance that was happening with shows like "Happy Days," "Grease," "American Graffiti," et al, that captured the attention of the parents of us teenagers as well as us. I was being held against my will at Southern Senior High School at the time, and many of the kids adopted a "greaser" lifestyle that included cigarette packs rolled up in t-shirt sleeves and Brylcreem in the hair (mainly just the guys), leather jackets and Keds high-top sneakers (guys and gals), and poodle skirts and saddle Oxford shoes (mainly just the gals). Two weirdo characters, Lenny and Squiggy, made cameo ...

12/15/2017

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Kirt Blattenberger - RF Cafe Webmaster
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Webmaster:
    Kirt Blattenberger,
    BSEE - KB3UON

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 Internet was still largely an unknown entity at the time and not much was available in the form of WYSIWYG ...

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