"In a piece called 'Smartphone FM Radio Capabilities Enhance Public Safety at No Cost,'
Forbes contributor Steve Pociask points out how vital radio is during times of emergency.
'The value of FM radio has been demonstrated again and again.' Pociask cites several
examples, storm after storm, where residents affected by disaster turned to radio. One
of those examples was Hurricane Isaac in 2012. 'Most of New Orleans was without power
for three to five days. Across the city, cell phone service didn't work, power outages
prevented access to TV ..."
Empower RF is announcing the production release
of our proven
Model 2215 for EMC, RF Product Test, Communications, and Electronic
Warfare applications. The 2215's inherent rugged design is based off Empower's COTS family
of NEXT GEN patented architecture that virtually eliminates every internal connector
found in the typical RF/Microwave system amplifier. With Power supply options that include
28 V DC, 400 Hz AC, and single phase AC, the unit is equally suited for land
mobile vehicle, airborne, and shipboard deployments ...
IEEE COMSOC and Rohde & Schwarz have jointly
published this white paper titled, "Fundamentals of RF Design." This paper, downloadable at no cost,
provides practical knowledge for designing an RF system. It covers design fundamentals
such as transmission medium, wave propagation, free space path loss, and key components.
It also includes an overview of test equipment and ideas to consider through the design,
development and verification process ...
"The first known superconductor in which
spin-3/2 quasiparticles form Cooper pairs has been created by physicists
in the US and New Zealand. The unconventional superconductor is an alloy of yttrium,
platinum and bismuth, which is normally a topological semimetal. The research was done
by Johnpierre Paglione and colleagues at the University of Maryland, Iowa State’s Ames
Laboratory, the Lawrence Berkeley National Laboratory and the Universities of Otago and
Wisconsin. Conventional superconductivity arises in a material when spin-1/2 electrons
form 'Cooper pairs ..."
Boonton / Noisecom and Microwave Journal
will present the
RF/Microwave Power and Noise Measurement webinar on April 25, 2018
at 11am ET. "This webinar will provide an overview of power and noise measurement at
RF and microwave frequencies. The webinar begins with a review of basic power measurement
theory before describing a range of equipment types and detectors commonly used to measure
RF and microwave power, highlighting the limitations of each type. Noise will then be
reviewed, including basic noise concepts such as noise figure ...
Each week, for the sake of all avid cruciverbalists
amongst us, I create a new
technology-themed crossword puzzle using only words from my custom-created lexicon
related to engineering, science, mathematics, chemistry, physics, astronomy, etc. You
will never find among the words names of politicians, mountain ranges, exotic foods or
plants, movie stars, or anything of the sort. You might, however, see someone or something
in the exclusion list who or that is directly related to this ...
By popular request, a new set of shapes has been
added to RF Stencils for Visio:
Components. These are built to the same scale as the test equipment and equipment
racks in v3.0 so they will fit right in with your existing drawings. There are now more
than 780 shapes in v3.1! Still only $35 (free to v3.0 owners) ...
"Electronics miniaturization has put high-powered
computing capability into the hands of ordinary people, but the ongoing downsizing of
integrated circuits is challenging engineers to come up with new ways to thwart component
overheating. Scientists at U. Cal., Irvine made a breakthrough recently in verifying
a new material configuration to facilitate cooling. In a study in the journal
Nanotechnology, members of UCI's Nano Thermal Energy Research Group
highlight the attributes of holey silicon, a computer chip ..."
Nuhertz Technologies will be hosting a
Filter Design Workshop at IMS 2018,
Philadelphia, June 12, 2018, beginning at 10 am. It is titled "Exceptionally Fast, Easy,
and Flexible Optimization of the Electromagnetic (EM) Planar Filter Frequency Response
Using Nuhertz FilterSolutions." Guest speakers include John Dunn of AWR Group, NI, Brian
Rautio of Sonnet Software, and Larry Dunleavy of Modelithics. The focus will be use of
the FilterSolutions' NI AWR Design Environment interface and supporting Microwave Office
circuit design software tool rapidly ...
"In this commissioned report by The MVNOs Series,
we cover a number of topics, such as the changes in the mobile wholesale market,
Wholesale-as-a-Service and the impact on digitalization, network
innovation and the impact of virtualization, what to expect from a future with 5G and
the new opportunities it brings. The mobile market is well-established as one of the
most strategically important sectors of the global economy. The wider mobile ecosystem
is estimated to deliver $3.6T in value added ..."
When I ran across this article in a 1966 issue
of Popular Electronics, it reminded me of a fairly recent situation that happened
to me at home. People in the 1960's were at the beginning of the consumer electronics
revolution, and anytime you could work some newfangled high tech gadget into an activity
it was a good thing. A lot of the Carl by Jerry stories by John T. Frye, published
in the same era, illustrate the point. My tale has to do with hearing an unidentifiable
woman's voice coming from "somewhere" that seemed to be inside the house. There are
some times when a combination of ...
"By now pretty much everyone has heard that the
U.S. DoD is flush with cash. It's probably more money than the military has had in decades.
Yet once we get beyond the initial euphoria, several big questions come up: - How is
the Pentagon going to spend all that money? - How can military leaders transform money
into meaningful readiness? - What might be the disruptive new technologies that the DOD's sudden new wealth should help promote most aggressively? -
Can we trust the ..."
Very few people these days would have any clue
as to the causes of the CRT-type
TV picture problems shown here - I certainly don't, even after looking at the answers
(except for #4, which is pretty obvious given the choices offered). What I can claim
is to have likely seen each one of those types of issues with all the cheap TV sets I've
owned (especially #9). My current 26" LCD television (I only own one TV), which is ten
years old this year, is still working fine and never displays any of those funny patterns.
In the days of the Macs TV Service Shop stories, survival in the business ...
"Autonomous vehicles and the
connected car have been one of the front-runners for 5G investments,
but in demonstrating 4G can be used as low-latency connectivity for vehicles, has Nokia
undermined its 5G mission? This is part of the issue for the telcos when it comes to
investments for 5G; the messaging is very messy. It will be an expensive mission to upgrade
the world to the fifth generation of mobile networks, therefore sound business cases
for ROI are needed, with autonomous vehicles and the connected car near the top of the
list. But if this use case can be delivered over 4G, does this ..."
John Frye, creator of fictitious electronics repair
shop owner Mac McGregor and his sidekick technician, Barney, must have been an amateur
brainology[sic]. This episode in a 1969 issue of Electronics World, and
a recent story titled, "Biological Effects of Electrical Shock," which appeared in the
May 1973 edition of Popular Electronics are proof of that. A very good introduction
to the workings of nerve cells, axons, synapses, dendrites, etc., is given here. In a
role reversal, Barney is educating Mac this time based on a psychology course he is taking
at the community college. He goes beyond the "your brain is a ...
Police Attempt to Unlock Deceased Man's Phone with His Finger at Funeral
The Electronics Industry: A Pawn in the U.S. vs. China Chess Game
Graphene Sets Record for Squeezing Light to 1 Atom
Automakers to Add Alibaba Voice Assistant to Cars
Sweden's SAQ LF Transmitter on the Air on May 1
DesignCon 2018 Best Paper Awards Honor >50 Engineers
DISA Put on DoD Budget Chopping Block
Virginia Radio Amateur Completes Contacts on All 29 Ham Bands
Richest 1% on Track to Control 2/3 of World's Wealth by 2030
iPhone Sales May Be Drastically Below Predictions
Satellite communication is growing rapidly. Recent
and anticipated launches of new satellite equipment are spurring interest in and demand
for wireless communication. Several companies have stated the intent to provide large
throughput, high-speed communication networks in the coming years. Along with the increased
access to space, this is driving interest in new
satellite communications. Accordingly, we need new communications
technology to supply bandwidth and data rate to support these applications. One challenge ...
I have to laugh a bit when seeing this article
on how to wire up a set of
3-way switches "[i]f you only have a two-wire cable to work with." There have been
many times when I needed to wire a set of 3-way switches and only had 2-wire Romex cable
on-hand. The simple solution is to simply run two pieces of 2-wire cable and only use
one wire from the second piece. A 250' roll of 14-3 w/ground costs about $79 at the hardware
store. A 250' roll of 14-2 w/ground costs about $45. For short runs, the additional cost
of using two pieces of 14-2 compared to a single piece of 14-3 is diddly. However, if
you want ...
Here's a gimmick that never really caught on.
In the 1960's, Antenna Specialists promoted their Model M−148 Co-Ax Omni Antenna
visual RF indicator." That indicator was a neon light bulb at the tip which lit up
when the transmitter was keyed on. Not only would this novel feature let you know when
your transmitter was broadcasting, but it would also "guide mobiles visually to your
10-20." OK, maybe at night, but it certainly wouldn't have been bright enough during
the day to even see. Alas, the public evidently didn't impress the buying public as much
as it did the designers. Maybe it had something to do with ...
Here are a couple more
comics from a 1969 edition of Electronics World magazine. I like the radio
astronomy comic. Enjoy ...
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 applications ...
You probably won't find too many people
stacking television antennas these days, but many Hams still do it. Vertical stacking
is used primarily to increase overall gain without appreciably altering the azimuth beam,
while horizontal stacking forms a tighter azimuth beam without appreciably affecting
the overall gain. When it comes to optimizing antenna designs installations for operations
below about a gigahertz, Amateur Radio practitioners have pretty much written the book
on the subject - actually, they have written hundreds of books on the subject. Antenna
stacking is often used ...