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Military & Aerospace Electronics magazine recently
published an interesting article titled
The Puzzle of RF Cosite Interference. "The military relies increasingly
on the RF spectrum for information throughput, sensors, and electronic warfare, yet growing
demands on RF technology can cause systems in close proximity to degrade each other's signals.
The modern military battlespace is overwhelmed with radio-frequency (RF) signals vying for
spectrum. Even without overt RF interference from enemy jamming, radio stations nearby, or
even from civilian cell ..."
Nope, this is not a racial slur or tasteless joke.
"Chinese authorities on June 20 issued a national standard for the use of
the public domain, eradicating poor translations that damage the country's image. The
standard, jointly issued by China's Standardization Administration and General Administration
of Quality Supervision, Inspection and Quarantine, aims to improve the quality of English
translations in 13 public arenas, including transportation, entertainment, medicine and financial
services. It will take effect on Dec. 1, 2017 ..."
Anatech Electronics, a manufacturer of RF and microwave
filters, has published its June newsletter. As always, it includes both company news and some
tidbits about relevant industry happenings. In it, Sam Benzacar discusses, among other topics,
the ever-increasing occurrence of RF interference in the IoT device population. Both long-occupied
and new areas of the electromagnetic spectrum are experiencing a rise in noise floors, necessitating
challenging filter designs. Anatech's business is to make certain that system ...
My alma mater is in the news! "A new use of
silver at the nanoscale could be the key to developing stretchable electronics such as smartphones,
tablets, and other electronic devices. Researchers at the
University of Vermont have discovered that working with silver at the
nanoscale allows them to create nanowires that have significant strength and the ability to
stretch. Frederic Sansoz, a professor of mechanical engineering at the university, said he
and his research team have been working with gold nanowires for several ..."
"As air-launched munitions get smarter, the Air Force
is creating a new class of weapon—a combination of
drones and missiles. But can they be advanced enough to work, yet cheap
enough that it's okay to lose a few in battle? It has advanced radar, forward-looking infrared
cameras, and laser rangefinders—all used to help the 13-man crew direct a barrage of lethal
fire to the ground from 12,000 feet. But for all of this advanced technology, the vision of
the U.S. Air Force Special Operations Command gunships can be thwarted by the threatening
adversary known as a cloudy sky. The USAF has a solution ..."
VNA RF Test Cables
to 18, 27 and 40 GHz. 18 GHz options include SMA, Type-N and TNC Higher Frequency
solutions include; 3.5mm, 2.92mm and 2.4mm. Also offered is ConductRF's Hi-Flex VNA Series
to 50 and 70 GHz phase stable & low loss professional series with light armor protection
and NMD head options. In-stock at
Visit ConductRF today for these and many other cabling options ...
Visitors to RF Cafe cover a very broad spectrum of engineers,
technicians, students, managers, hobbyists, and researchers. That is why I included one particular
career story titled "10 High-Paying Blue-Collar Jobs." Having begun my lifelong pursuit of
all things involving controlled movement of electrons as an electrician, I know firsthand
that you do not have to earn a college degree in order to work in a high paying, technically
challenging job. Another article addresses a topic of growing interest -
changing careers in your 50s (and beyond). Per the author: "...about 40%
of Americans who were still working when they turned 62 had moved to a new ...
of Plantsville, Connecticut, is a manufacturer of precision waveguide bends in sizes ranging from WR22 to WR137 and
can form thin wall waveguide in sizes ranging from WR28 to WR75. Also double-ridged waveguide
sizes WRD475, WRD750, WRD650, and WRD580. They stock many of these in aluminum and OFHC for
quick turnaround. Please contact Accubend at 860 378-0303. They have been added to the
Waveguide Vendors page on RF Cafe.
Where else on the Internet other than RF Cafe can you
go for a daily helping of electronics-related material that ranges from the very beginnings
of our chosen vocation through to the latest leading edge developments? That Q is rhetorical
of course - and self-serving to boot ;-) This handy-dandy trick for enhancing the signal
on your AM radio appeared in a 1969 issue of Electronics World. I remember doing
this magnet 'tuning' technique on my small, el cheapo pocket transistor radio that I carried
with me when wiring houses and buildings while working as an electrician many moons ...
The Electronic Design Innovation Conference and
Exhibition (EDI CON) USA, the first industry event to bring together RF/microwave and high-speed
digital design engineers and system integrators, announced today the addition of a full day
of training to its conference program at the Hynes Convention Center, September 11-13 in Boston,
MA. Organizers of EDI CON have invited industry experts to teach
3-hour short courses
on relevant topics necessary for success in today's high-speed and high-frequency designs.
The day also includes sponsored 3-hour training ...
"Its catalog was the
Boys' Life of electronics." - Tom Gallagher, NY2RF, CEO of ARRL,
regarding the second bankruptcy filing for
(May 2017 QST, p81) ...
There is not much chance you will see an advertisement
Manufacturing & Electronics now like this one from a 1948 issue of Radio News
magazine. Espey is still in the business of defense electronics, but their advertising / public
relations group would be hauled into court if they produced copy like that today. In fact,
I hope as a result of my bringing up the subject that some overly sensitive snowflake won't
try to sue them for past offenses. Does this documented instance of former official company
policy suffice as legal proof of a corporate history ...
Triad RF Systems announces the availability of their
TTRM1109 - a Bi-Directional SSPA for domestic and foreign military and public safety wireless
links. It can handle any modulation and outputs 10 W typical BPSK and 3 W typical
64QAM OFDM. This class A GaAs module is designed for both military and commercial applications.
It is capable of supporting any signal type and modulation format, including but not limited
to 3-4G telecom, WLAN, OFDM, DVB ...
"In an extract from his new book, Brian Merchant reveals
how he gained access to Longhua, the vast complex where iPhones are made and where, in 2010,
unhappy workers started killing themselves. The sprawling factory compound, all grey dormitories
and weather-beaten warehouses, blends seamlessly into the outskirts of the Shenzhen megalopolis.
Foxconn's enormous Longhua plant is a major manufacturer of Apple products.
It might be the best-known factory in the world; it might also might be among the most secretive ..."
This article from a 1970 issue of Popular Electronics
is a timely mate to the monthly list of career-related resources I posted today since it discusses
jobs in electronics not necessarily at the degreed engineer level. Along with both diploma
and certificate programs by local colleges, home study courses in electronics have been around
since the early part of the last century.
Cleveland Institute of Electronics began offering courses by mail in 1934, and has been
running advertisements in trade and technology magazines for as long as I can remember. It
is still in business today ...
"Spending on RF high-power semiconductors for the wireless
infrastructure markets continues to flatten out this year, despite the fact that the overall
market hit well over $1.4B in 2016. While certain market and sub-market segments are showing
moderate growth, Gallium Nitride (GaN) is capturing meaningful market share of
RF high-power semiconductors, especially in wireless infrastructure. The
technology will drive Gallium Nitride's share of RF Power semiconductor revenues to more than
double between 2016 and 2022. According to a research ..."
radio from Sparton has to be one of the most unique models of its era. It is one of six vintage
vacuum tube radios featured in a 1936 issue of Radio-Craft magazine. These schematics,
tuning instructions, and other data are reproduced from my collection of vintage radio and
electronics magazines. There are 199 Radio Service Data Sheets ...
RCA Victor Model M109 "De Luxe"
Model 77 'Kadette'
Kent 776 Auto Radio
Foxconn, Sharp Considering Manufacturing in U.S.
LED Manufacturer to Pay $90k Fine for AM/FM Radio Interference
FCC Chairman to Appoint New Enforcement Bureau Chief
U.S. (now 4th) Slips in New TOP500 Supercomputer
Instantly Rechargeable Battery Drives New Electric Car Possibilities
1.4M Illegals Working Under Stolen Social Security Numbers
Electronics Distributors Win Revenue Wresting Match
Ulrich Rohde, N1UL, Wins Prestigious W.G. Cady Award
GE's Pension Shortfall Time Bomb: $31B and Rising
Are Left-Handed People More Gifted Than Others?
Hmmm... I'm a southpaw and I never received more gifts
at Christmas or for my birthday than my four sisters did, so probably not ;-) "The belief
that there is a link between talent and
left-handedness has a long history. Leonardo da Vinci was left-handed.
So were Mark Twain, Mozart, Marie Curie, Nicola Tesla and Aristotle. It's no different today
– former U.S. president Barack Obama is a left-hander, as is business leader Bill Gates and
footballer Lionel Messi. But is it really true that left-handers are more likely to be geniuses?
Let's take a look ..."
Being a great appreciator of good humor, and especially
technology-related humor, I made sure to scan these
comics from the pages of vintage Radio-Electronics magazines. Some of the same
themes from half a century ago are still applicable today - like inventing a device that will
block television commercials. There are a couple huge differences between then and now, though.
For one thing, the percentage of each hour consumed by commercials has nearly doubled since
Title: "Design Considerations and Tradeoffs for Microstrip, Coplanar and Stripline
Structures at Millimeter-Wave Frequencies"
June 20, 2017 11:00 am EDT
Info: "RF technology using Printed
Circuit Boards (PCBs) typically has several common basic structures which are manipulated
to accommodate the intent of the design. Some common structures used for RF PCB applications
are microstrip, coplanar and stripline circuit configurations. These ..."
Saelig Company announces the availability of the
Mercury™ T2C USB 2.0 & Power Delivery Protocol Analyzer that offers the newest USB
Type-C connection. The Mercury T2C is a small and affordable hardware-based USB protocol analyzer.
It is the industry's first ultra-portable, hardware-based, USB and Power Delivery protocol
analyzer. It combines the de-facto standard CATC Trace™ display, comprehensive USB class decoding,
and PD 2.0 protocol analysis. The pocket-sized, bus-powered Mercury T2C sits in-line between
"Positivity over pay levels is tempered by concerns
over skills, diversity and Brexit in The Engineer's 2017 salary survey.
Salaries for UK engineers have increased by 6.6% on average over the last
twelve months, according to The Engineer's 2017 salary survey, which is published today. Whilst
the average salary for UK engineers stood at £45k in 2016, our 2017 report - which is based
on responses from 2743 engineers working across a range of sectors - shows an increase to
£48k. Despite general dissatisfaction amongst respondents with the levels of remuneration ..."
Here is another one of those advertisements that you
would probably never see in today's
but its theme was fairly prevalent up through about the 1970s. There is fundamentally nothing
offensive about it; men have always endeavored to gain the favor of women. However, society
has since been bullied by name-calling, finger-pointing, full-of-themselves celebrities and
media into being afraid to acknowledge innate, harmless propensities of everyday people. The
natural has been ...
This e-book probably applies to most RF Cafe visitors.
"Electrical and Electronics Engineers - Occupational Outlook" is available
as a free download. "Considering a career as an electrical and electronics engineer? These
professionals design, develop, test and supervise the manufacturing of electrical equipment,
including motors, communication systems and power generation equipment. This guide provides
all the necessary information and resources to get started. Find out everything you ..."
Long-time EDN columnist
Martin Rowe just published a short piece about the issue of storing archival
data. His example included family photos and movies as well as data files from vintage software.
Mr. Rowe points out that most programs only open files from a couple generations back,
so unless you are diligent about re-saving files in newer versions as they are released, you
could find yourself having to keep or re-acquire (try eBay) older versions if you want to
access your information. Go back into the 1990s and you'll need an OS that can run 16-bit