Saelig announces the availability of the
EMCView Pre-compliance Testing Software. This PC-compatible software simplifies the process
of EMC pre-compliance testing of radiated and conducted emissions. EMCView complements an
emissions test setup of a spectrum analyzer, an LISN (Line Impedance Stabilization Networks)
and an EMI-quiet TEM Cell. Built-in amplitude correction provides the correction and conversion
coefficients for cables, amplifiers, attenuators, LISNs, TEM cells, antennas, RF ...
Windfreak Technologies designs, manufactures,
tests and sells high value USB powered and controlled
radio frequency products such as RF signal generators, RF synthesizers, RF power detectors,
mixers, up/downconverters. Worldwide customers include Europe, Australia,
and Asia. Please contact Windfreak today to learn how
they might help you with your current project ...
Series by Linx Technologies is a complete wireless remote control system. It supports
both 8-button remote control and mixed remote control/data networks. In addition to modules,
a finished remote (including plastics) is available which can be quickly modified for a customized
solution. No programming is required, making it the easiest solution to implement. The HumPRCTM
supports long-range operation at 868 MHz and 900 MHz for multi-region operation ...
"Meeting the Challenges of the Millimeter Wave Radio Frequency Environment
for 5G" Date: Thursday, October 26, 2017, Time: 2:00 PM ET. "One of the primary
challenges of 5G testing is both capturing information on the millimeter wave radio frequency
environment as well as just understanding its operation. Both industry and academic research
is still at an early phase of this work and for it to progress work must be done on a number
of fronts in terms of test and measurement. For instance, better models are need ...
Author Len Buckwalter states in this 1972 article from
Popular Electronics that at the time, radio channels were so crowded in California
that police were using spectrum in the
TV broadcast band for communication. The FCC was denying recreational boaters channel
space in favor of commercial operators. The problem could not be blamed on available frequency
space, but rather on the lack of inexpensive electronic components that worked above a kHz
or so. Nowadays when you read in the news about such desperate need of spectrum that network
owners pay millions or billions of dollars for a few measly MHz of bandwidth, the cause is
truly an overabundance of devices vying for space. Although truthfully, you could claim that
exactly the same ...
Anatech Electronics, a manufacturer of RF and microwave
filters, has published its October newsletter. In it, Sam Benzacar asks the question "Whatever
happened to NFC?" He does a brief history on the big plans for near field communication (NFC)
as well as what likely doomed it - at least as originally envisioned. Finally, Sam suggests
a great application for NFC that, combined with contactless charging (my interjection), could
prove to be a huge market to resurrect NFC fever. There are also a few news items relevant
to Anatech Electronics' business (that would be RF filters) ...
Nova Microwave is a leader in technically differentiated
electronic and radio frequency Ferrite Circulators and Isolators that connect, protect and control critical commercial
and military wireless telecommunications systems. Our staff is dedicated to research and development
of standard and custom design quality Ferrite Circulators and Isolators from 380 MHz
to 26.5 GHz. Please visit Nova Microwave today ...
Keysight Technologies will showcase the latest releases
of its high-frequency simulation and measurement tools at the electrical performance of electronic
packaging and systems 2017 (EPEPS
2017) conference, the premier event for advanced and emerging issues in electrical modeling,
analysis and design of electronic interconnections, packages and systems. Keysight will demonstrate
the following new software capabilities at the event ...
"Over the last 10 years Comsol has grown from providing
Integration solutions to providing fully managed wireless services. This new market offering
has allowed our customers to no longer invest in specialized
wireless infrastructure which creates strain on their balance sheet but,
rather, to buy an all-in connectivity service from Comsol and build this into easily managed
OPEX budgets ..."
This article on
noise measurement is not about electrical noise, but rather on audible noise. It appeared
in a 1973 edition of Popular Electronics magazine during an era when hi-fi stereo
equipment was becoming a big deal. Author Carl Alsen, an engineer at General Radio, reviews
methods of sound level measurement and presents values for some familiar sources. Radio manufacturers
had/have a vested interest in background noise that affects the satisfaction of their customers.
Ambient noise in all realms has been a rapidly growing problem in terms of information transmission
and reception ...
Here is a great opportunity to help design products
that millions of people will use. The
Sr. RF Design Engineer will play a central role in the development and design of important
new products where RF performance is very important for our remote controls and connected
products. You will be able to take pride in seeing your designs used by your friends, neighbors,
and in seeing them on the shelves at home stores. This highly visible senior role will involve
close collaboration with the rest of the new product development team to produce new sub-gigahertz
(UHF) remote ...
For the sake of avid cruciverbalists amongst us, each
week I create a new
technology-themed crossword puzzle using only words related to engineering, science, mathematics,
chemistry, physics, astronomy, etc. At least 10 clues in this puzzle with an asterisk (*)
are pulled from this past week's (10/16 - 10/20) "Tech Industry Headlines" column on the RF
Cafe homepage (see the Headline Archives page for help). cruciverbalist: [noun]
cruci- ("cross") + verbal ("words") + -ist ("agent, person") -- A person who constructs
"ViaSat has decided to throw a hissy-fit over the Ofcom decision to grant
Inmarsat a license for its European Aviation Network, threatening legal action over the move.
Ofcom must be sitting back and wondering if it is able to do anything right. Every decision
it seems to make is met with a chorus of lawyers serenading the watchdog to the legal dance
floor. Three is usually the one who complains it isn’t getting more help despite not putting
its hand ..."
Mini-Circuits announces the availability of four new devices in its lineup
of RF and microwave components. Included are an extra-long-life absorptive electromechanical
SP4T switch for DC to 18 GHz, a 2.4 mm (female to male) adapter covers DC to 50 GHz
for industry-leading value, a surface-mount bandpass filter for 95 to 105 MHz with excellent
selectivity, and an ultra-high dynamic range MMIC amplifier providing +46.1 dBm IP3 from
0.03 to 2.7 GHz ...
"Deutsche Telekom has got four of its radio cells in Berlin pumping out
shiny New Radio goodness in a real-world setting, claiming a European first. Technically this
is 'pre-standard 5G NR,' but the lack of a standard hasn't stopped everyone banging on about
5G for year and DT isn't about to miss out on all the gun-jumping fun. We’re told this mini-network
is managing a throughput of 2 Gbps so a single device and a latency ..."
"Researchers have modeled the actions of electrons
extreme temperatures and densities, such as those found within planets
and stars. The work could provide insights into the behavior of matter in fusion experiments,
which may one day lead to a sought-after source of clean energy. Electrons are an elementary
component of our world and determine many of the properties of solids and liquids ..."
Did you know that General Electric introduced the first
silicon-controlled rectifier (SCR) for commercial use? It was in 1957. The SCR was one
of the first really high power devices in the semiconductor industry, not for its voltage
and power gain, but for its ability to switch very large currents on and off while having
a relatively low "on" voltage drop. This article gets into the basic theory, operation, and
application of the SCR. The S-band airport surveillance radar that I worked on in the USAF
originally used a vacuum tube thyratron to trigger the magnetron's pulse forming network,
but that tube was replaced with a solid state SCR circuit that plugged directly ...
"After the destruction inflicted across the Caribbean
by hurricanes Harvey, Irma, and Maria, renewable energy advocates are calling for a rethink
of the region's devastated power systems. Rather than simply rebuilding grids that delivered
mostly diesel generation via damage-prone overhead power lines, renewables advocates argue
that the island grids should leapfrog into the future by interconnecting hundreds or thousands
solar microgrids ..."
Tech Pours Millions into Lobbying
CR Says Old Samsung Phones Beat iPhone 8
Verizon Walks Back Its 5G Wireless Hype
Enhance EW Receivers EA-18G Aircraft
QRZ DX and The DX Magazine Publisher Carl Smith, N4AA, SK
U.S. Tech Giants May Find Their Future Shaped by Europe
Caribbean Telecommunications Union Head Calls for "New Generation" of Hams
FCC Further Extends Waiver on RF Equipment Information Collection Requirements
Vodaphone Says EU Could Learn from India on Spectrum Allocation
iPhone 7 Selling Faster Than iPhone 8
October 26, 11:00 am to 12:00 pm EST. Presenter: Hassan
Chreim. CST Webinar Series:
Automotive radar is becoming increasingly important for car designers,
due to the huge role it plays in securing and ensuring the driver's safety. In this webinar,
we will show how CST STUDIO SUITE can be used to perform and study all of the design stages
of automotive radars, starting from the basic element which is the antenna, through its integration
inside a radome, to actually placing and calibrating the whole package ...
"I don't know the last time you purchased some new coax,
but it's sold by the foot and can cost an arm and a leg!" - H. Ward Silver, QST
magazine, October 2017,
Hands-on- Radio (p71).
SiteFlex Range of ruggedized Field
RF Test Cables are designed Field Test Engineers working in applications that require on site
RF Testing. These cables are directly compatible with Hand-Held Network and Spectrum analyzers.
Options include DC to 7 GHz through DC to 50 GHz. The ruggedized construction includes
anti-torque connectors that are firmly attached to the cables external armor. Crush resistant
SF series cable can withstand 1,200 lbs/sq.in ...
Deciding which fuse to use as a replacement for a blown
fuse is usually a simple matter - read the part number or electrical parameters (current,
voltage) off the package and make sure of its type (fast or slow blow). Of course whenever
a fuse blows, you usually have more or a problem than just a bad fuse. Deciding which
fuse to use when designing a circuit which requires overcurrent protection requires a
lot more consideration. This article from fuse making company Bussmann's Charles James gives
a brief introduction to the kinds of parameters you need to factor into a selection. There's
more to it in most cases - especially ...
"A new method that precisely measures the mysterious
behavior and magnetic properties of electrons flowing across the surface of quantum materials
could open a path to
next-generation electronics. Found at the heart of electronic devices,
silicon-based semiconductors rely on the controlled electrical current responsible for powering
electronics. These semiconductors can only access the electrons' charge for ..."
"Qualcomm was granted FCC authorization to conduct
experiments using a small 5G R&D development and demonstration network at
4.4-4.94 GHz in its hometown of San Diego. Specifically, the location
is within a 0.5-mile radius of Qualcomm's campus in the Sorrento Valley area of San Diego.
The authorization is effective until October 1, 2019. The application lists 30 mobile units
and four base stations to be used in a test network that will use a single TDD 100 MHz channel ..."
Printed circuit boards (PCBs), especially high density
and many layered, were still a relatively new technology in 1969. Point-to-point wiring was
still a large part of most products in the commercial, military, industrial, and aerospace
worlds. Producing artwork and contracting for a lot of PCBs was rather expensive, especially
in small quantities. Many people, including me, made quite a few single- and two-sided boards
using photoresist pens and self-adhesive tape and pads, then bathing them in an etchant solution
of ferric chloride. Through holes were made on a drill press and then traces and pads were
tinned with flux and solder ...
RF Cafe typically receives 30,000-40,000 page views each weekday and about half that
on weekends. RF Cafe is a favorite of engineers, technicians, hobbyists, and students
all over the world. With more than 8,600 pages in the Google search index, RF Cafe returns
in favorable positions on many types of keyword searches, both for text and images. New content
is added on a daily basis. Advertising plans
start at a mere $35 per month ...