Today in Science History -
The December 13,
1965 issue of Electronics magazine was largely dedicated to assessing
Japan's status in the electronics industry. Japan, with the help of the
United States, made a remarkable recovery from defeat during World War II to
have become an emerging power in electronics. "Made in Japan" labels on products
had transformed from being the butt of jokes because of pre-war low quality
products to representing assurance of low cost, high functionality and high
value products. It still does to this day. The Japanese people have worked hard
to acquire the world's respect as smart innovators and hard workers, and have
been sure to maintain manufacturing bases within their borders. When you read
this article, be prepared for a few dated terms like a "Kita" diode ...
Dr. Andrei Muller, progenitor of the
3D Smith Chart™ software program, has teamed with a handful of able
colleagues to release a commercial version of this paradigm-changing design and
analysis tool. IMHO, it is only a matter of time before one of the major players
in RF/microwave simulation (NI/AWR, Keysight, COMSOL, et al) integrates this incredible
analysis tool into a software package. The following press release was issued on
July 17, 2019. "3D Smith Chart™ announces a new version (1.02) of the 3D Smith Chart
with new features. The original 3D Smith Chart tool (version 1.01) extended the
Smith Chart capabilities for the first time since the 1939s to make it usable for
circuits with negative resistance based on a unit sphere that plots circuits with
reflection coefficient magnitudes larger than 1 by mapping them as arcs ..."
Citizen Band (CB) radios were all the rage
during my high school years (1973-76). Previously the domain of over-the-road haulers,
by then everybody who was anybody had a 23-channel CB in his/her car or pickup truck.
My 1969 Camaro SS, of course, sported one - probably the cheapest model available.
Those were the days of C.W. McCall's "Convoy" and Cledus Maggard's "The White Knight"
lyrics. Everybody knew the words to it. Smokey and the Bandit fed the craze.
After all, there were no cellphones. Rather than learning text messaging shortcuts
like OMG, *$ (the company didn't even exist then), B4N, and IMHO, we learned to
use clever words and phrases like "10-4," "bear in the air," and "what's your 20?"
It's been a long time ...
"That's one small step for [a] man, one giant
leap for mankind." -
Neil Armstrong, from the moon on July 20,
1969. Armstrong says he did utter the word "a," and that the scratchy radio transmission
masked it. Having been a huge fan (short for "fanatic") of the space program and
builder / launcher of model rockets, I was sure to watch the momentous event on
TV as it was broadcast live from the moon on a Sunday evening at 10:56 PM EDT, a
month before turning 11 years old. The
Estes model rocket company issued certificates to rocketeers
who launched any model during the flight time of Apollo 11; of course I got
mine with an Alpha rocket.
ConductRF, an industry leader in high quality
RF cable assemblies, introduces their line of
POWeRUN RF cables. POWeRUN RF cables are designed for superior performance in
the DC to 18 GHz frequency range at powers up to 170 watts for the WSA74 series
and 345 watts for the WSA84 series. High phase and amplitude stability is, and low
loss is standard across the series. Flexible construction is designed for high power
and long cable runs. Rugged outer covering over cable supports outdoor use. Ideal
for commercial and military applications ...
title of this
IEEE article is misleading in that NASA did not
"draft" Barbie - only Snoopy (and Charlie Brown, BTW). "Snoopy" was the official
name of the Apollo 10 lunar module (LM) and "Charlie Brown" was the
name of the moon-orbiting command module (CM). There was a Gemini astronaut
GI Joe at the time, too. Actually, it was the
Apollo 10 astronauts who chose the Peanuts characters as mascots because of
the popularity of the comic strip and Charles Schulz's giving Snoopy the alter ego
of an astronaut (and, of course, a WWI flying ace). Here is the
Kennedy Space Center account of the history of
NASA's adoption of Snoopy. This Saturday, July 20th, marks the 50th anniversary
Apollo 11 moon landing.
Centric RF is a company offering from stock
various RF and
Microwave coaxial components, including attenuators, adapters, cable assemblies,
terminations, power dividers, and more. We believe in offering high performance
parts from stock at a reasonable cost. Frequency ranges of 0-110 GHz at power
levels from 0.5-500 watts are available off the shelf. Order today, ship today!
Centric RF is currently looking for vendors to partner with them. Please visit Centric
American Telephone and Telegraph Company (AT&T) was founded as part of the
Bell Telephone System to build a nationwide wired, long distance communications
service. When this advertisement was printed in a 1917 issue of The Saturday Evening
Post magazine, many American households still did not have a telephone installed,
and most of those that did subscribed to "party line" hookups. Party lines were
a service sharing agreement whereby multiple users were connected to the same telephone
number and agreed to share the line. The upside was a discounted phone bill, but
the downside was the any other member of the "party" could listen in on your conversation.
I remember back in the 1960s when our house had a party line. My sister and I (both
preteens) would sometimes carefully pick up the phone receiver and listen in hopes
EDI CON Online, a new interactive event being
held online September 10-12, 2019, has announced its line up of technical session
speakers. The interactive technical sessions will occur at no cost to attendees,
and sponsors have the opportunity to present workshops and keynote sessions as part
of the daily schedule. The sessions on September 10th will focus on 5G and IoT,
September 11th on radar and antennas, and September 12th on signal integrity and
power integrity. Attendees select the sessions for the online event in a single
sign-on registration portal and can participate ...
That's a lot of gold-plated connector contacts
and gold wire bonding stock (about 63.5 kilomiles of 1 mil wire)! This feature
about the Perth Mint (Australia) having set a new Guinness world record by minting
this one metric tonne (2,204.6 pounds avoirdupois)
solid gold coin has been in the news the last
couple days. It is on display at the New York Stock Exchange (NYSE). The current
spot price of $1,411.10 per ounce sets its bullion value to 2204.6 lb. x 16 oz.
x 1411.1 $/oz. = $49,774,576.96, or $50M in round numbers.
RF Cafe's continued existence depends on
companies like ERZIA providing support. ERZIA produces
microwave and mm-wave
modular amplifiers and integrated assemblies operating from low frequencies
up to 100 GHz. Their catalogue of standard amplifier modules comprises more
than 100 different models, having also a high capacity of customization for amplifiers
and integrated assemblies. Some of products have space heritage and are used in
aerospace, commercial, military and scientific systems, having a wide range of final
A part of Design News' "Space Week 2019"
feature is this "8 Technologies We Owe to the Apollo Space Program."
Not mentioned in the list of NASA innovations are freeze-dried food, space blankets
(those foil-looking things), miniaturized quartz crystal timekeeping, joystick controllers,
and smoke detectors. NASA popularized but did not invent Velcro, Tang, or Teflon.
Says the author, "The innovations of the Apollo program didn't stop at the Moon.
Many technologies were created, or innovated into what they are today, thanks to
the space program."
Since 1961, MECA
Electronics has designed and manufactured an extensive line of
RF & microwave components for in-building, satellite, radar,
radio, telemetry, mobile radio, aviation & ATC. Attenuators, directional &
hybrid couplers, isolators & circulators, power dividers & combiners, loads,
DC blocks, bias-Ts and adapters & cables. MECA has long been the 'backbone'
of high performance wired and air-interfaced networks such as in-building applications,
satellite communications, radar, radio communications, telemetry applications, mobile
radio, aviation & air traffic communications.
Montgomery Ward (aka "Wards" or even "Monkey
Wards") had their own line of radios, electric guitars, and other products that
went by the name of "Airline." Sears, Roebuck and Company, by the way, had the "Silvertone"
series of radios, electric guitars and, other electronics products. This 2-page
radio service data sheet for the
Montgomery Ward Airline Model 04BR-1105A console type radio appeared in a 1941
issue of Radio-Craft magazine. Some of the electronics magazines of the
era ran these features to help out people who wanted to attempt troubleshooting
and aligning their own equipment. Many electronics manufacturers would sell service
data documentation only to authorized dealers and repair shops. Unlike today ...
Linx Technologies, a Merlin, OR based developer
and manufacturer of antennas, is pleased to introduce the
nanoSplatch™ nSP250 dual-band WiFi/WLAN antenna for embedded applications. nanoSplatch
antennas are a reduced-size evolution of Linx Technologies successful surface-mount
embedded Splatch™ and microSplatch™ antennas. The nanoSplatch™ nSP250 is an ideal
embedded antenna for use in compact or portable devices targeting WiFi/WLAN and
other 2.4 GHz or 5.8 GHz ISM frequency band technologies such as Bluetooth® and
ZigBee®. The surface-mount nSP250 antenna uses just 80.6 mm2 of board space and
costs under one dollar in volume. In addition, Linx designed the antenna to accommodate
close proximity effects ...
"One Small Step with Model Aviation," produced by the Academy
of Model Aeronautics (AMA), is a memorial to the launch of Apollo 11 on this
day, July 16, 1969. This short video features of Neil Armstrong's early life as
an avid aeromodeler before and during his time as an aeronautical engineering student
at Purdue University. He is shown here in the dormitory holding a slide rule outfitted
with wings, which was the Purdue Aeromodelers' club logo. It can be seen printed
on their T-shirts. Neil was an AMA member (as I have been since the early 1970s,
AMA#92498). The video includes narration of some of his friends from the era. Here
is my Estes Saturn V rocket model in the Apollo 11
electrolysis and corrosion of boat propellers is not really in line with the
theme of RF Cafe; however, it presents the same sort of problems that grounding
and anchoring systems for radio antennas and equipment shacks have. If you bury
a piece of metal in the Earth, it will, over time, magically disappear. Much effort
has been expended on the part of both amateurs and professionals to mitigate the
anodic action that occurs when dissimilar conductors come into intimate contact
because each metal - be it a base or an alloy - has an electric potential relative
to other metals. What happens when there is a difference of potentials
and a conduction path is present? Yep, current flows. Through that action, material
is physically transferred from the more positive metal to the less positive metal ...
"About a year ago, the U.S. Defense Advanced
Research Projects Agency pulled back the covers on its five-year, $1.5-billion scheme
remake the U.S. electronics industry. The Electronics
Resurgence Initiative included efforts in 'aggressive specialization' for chip architectures,
systems that are smart enough to reconfigure themselves for whatever data you throw
at them, open-source hardware, 24-hour push-button system design, and carbon-nanotube-enabled
3D chip manufacturing, among other cool things. As always with DARPA, this is high-risk
research; but if even half of it works out, it could change the nature not just
of what kinds of systems ..."
ConductRF is continually innovating and developing
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for amplitude and phased matched VNA applications as well as standard & precision
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access. Please visit ConductRF today to see how they can help your project!
Hard as it is to believe, the weekend is
over and another five days of the work week lie ahead. It will be at least four
more days before you can sleep in again and tend to the yard work, home improvements,
camping excursions, sports endeavors, road trips, etc. Even if you love your job,
having a time of reprieve is always welcome. Here is a little for you compliments
of the July 1971 issue of Radio-Electronics magazine. It included a couple
comics. I particularly like the one on page 79 - a theme that occurs in many
places. The guy reminds me of an engineer I worked with at Westinghouse Electric's
Oceanic Division back in the 1980s ...
We seem to have reached a crossroads in America,
as well as in a lot of other similar countries. Over the last few decades government
agencies, universities, public schools, and media have convinced many people that
the only way to succeed and be happy and productive is to go to college and earn
a Bachelor's (or higher) degree - in anything. Drilled into us continually is that
the average person with at least a
will earn up to a million dollars more in his/her lifetime. Sounds good, right?
As anyone with knowledge of statistics will tell you, averages are meaningless without
an accompanying figure for standard deviation. That would be the same as saying
if you stand with one foot in a pot of near boiling water and the other in a pot
of ice water, on the average you would feel just right. The propaganda has been
This article was sent to me by an RF Cafe
visitor. With the way U.S. companies have been routinely passing off critical technology
to China for nearly three decades now, I'm surprised it is even considered illegal.
"A Lexington businessman has been charged with trying to
sell sensitive technology that was stolen from
his former employer, Norwood electronics company Analog Devices Inc. A federal grand
jury in Boston indicated Haoyang Yu and his company Tricon MMIC LLC with 12 counts
of misappropriating Analog Devices' trade secrets, and with three counts of smuggling
for selling electronic components to a customer in Spain in violation of US export
control laws. Yu was scheduled to appear Friday in U.S. District Court ..."