Microwave, the world class supplier of complete MMIC based solutions for communication & military markets, has
introduced a new reflective, SP4T switch that is ideal for demanding applications requiring broadband
performance, low insertion loss, fast switching speed and high power handling capability. The
HMC1084LC4 is a broadband reflective
GaAs MESFET SP4T switch that provides frequency coverage from 23 to 30 GHz, with 11 dB
return loss, 26 dB isolation and 2.8 dB insertion loss at 30 GHz, and a switching speed of 15 ns.
a much-deserved break and work this week's
Radio & Radar themed crossword
puzzle. This one won't take too long. All the words are pulled from a hand-built list of terms, names, and abbreviations that have only
to do with science, mathematics, and engineering. If you want a crossword with names of movie stars and obscure
countries, try the local newspaper. If you want to exercise your nerd knowledge, this is the one for you.
Engineering, an international Radio Frequency and Embedded
Systems solutions provider, announces it has achieved both
ISO 9001:2008 and AS9100:2009 Rev C
certifications for its Quality Management System by EAGLE Registrations Inc. Its scope includes research and
development as well as design and production of RF systems and subsystems. "NuWaves is excited to
join the top tier suppliers in our industry with these highly respected quality certifications," said
Jeff Wells, President and CEO of NuWaves Engineering. "It's a testament to our employees and their
Monolithics Industries has introduced PMI Model No. IFE-DRS-KIT, an
Integrated Front End
(IFE) unit that consists of a low noise amplifier, RF Log
Detector, and a low noise video amplifier. This integrated unit was designed to support a phased array radar
automated test set. Operational frequency is in the 9-10 GHz band with an input power level of -40 to -48 dBm.
Linx Technologies has published a white paper titled, "Considerations
for Wireless Range." Author Justin Hopper writes, "One of the first questions one asks when evaluating a wireless
system is 'what range will it get?' The answer to the wireless range question is somewhat complicated. The range
of a wireless system is dependent on several interdependent factors. Some are internal to the design of the product
and some are external. There are ways of estimating the wireless range of a system by taking into account several
factors. The first factors in determining wireless range..."
electronics career began in the USAF as a radar system maintenance specialist, where I did not have exposure to
engineers except a rare visit by a communications officer during system certification tests. Following
separation (aka "getting out"), I went to work as an electronics technician for Westinghouse at the Oceanic
Division in Annapolis, Maryland. It was the first time I worked alongside engineers. My nature is to be
subservient and respectful toward people put in charge of my activities, whether at work or otherwise, so I
was surprised to witness an underlying rift that
persisted between engineers and technicians. A minority of the techs seemed to harbor resentment for the
engineers and took every opportunity to highlight their mistakes, no matter how minor. Derisive comments were
usually reserved for the benefit of co-workers, not the engineers themselves (backbiting). I admired most of
the engineers enough that it motivated me to spend many years taking classes part-time to earn my own BSEE
degree. On one occasion a production test technician discovered an incorrect voltage reference level on a
comparator circuit in a very complex mixed signal circuit...
Military Antennas East Summit will address the evolving development of antennas as an ever-critical component
of all military communication capabilities; in doing so, it will delve into the development of Ground, Air,
Sea, and Space-based antennas, along with software radios, vehicle communications, and SATCOM. It will also
uncover the newest in antenna technology, including small wideband antennas, metamaterial antennas, GPS
programs, superconducting RF systems, adaptable RF, and more. Washington Plaza Hotel,
September 17-18, 2013.
you read this, veteran North
Carolina balloonist Jonathan Trappe is floating over the Atlantic Ocean somewhere right now in a small wicker gondola
lifted aloft by a cluster of colorful party balloons. It departed from Maine on Thursday, September 12, 2013. A
story on the ARRL website reports that amateur radio is onboard. Mr. Trappe is no newcomer to flying in such contraptions. In
2012 he and a specially designed small house used a similar buoyancy arrangement to float above Mexico. A
"toy balloon" flight over the Alps met with success in September of 2011. Trappe became the only person to
have crossed the English Channel by cluster balloon...
ExpertServices periodically sends out e-mails that highlight recent key court cases that can significantly
affect the effectiveness of expert testimony, both for the plaintiff and for the defendant.
latest case involves an expert who contradicted during oral testimony what he claimed in his written report.
The mistake cost the company that hired him as an advocate to lose their patent infringement claim. I'm
guessing the company has initiated a new lawsuit based on the outcome. Attorney Robert Ambrogi weighs in on
sure giveaway to the age of a picture is the presence of a wheat penny, a buffalo nickel, or a Mercury dime. This
1957 advertisement for
Master antennas has all three. It shows a walking Liberty half dollar as well. Quarters haven't changed much
over the years, with George Washington's head on the obverse side since 1932. The wheat penny design ended in
1959 when the Lincoln Memorial was put on the reverse side in its place. Thomas Jefferson's head has been on the
nickel since 1938. Theodore Roosevelt's head was ensconced on the obverse of the dime in 1946. John F. Kennedy
was placed on the half dollar obverse in 1964. This ad is about antennas, not coins, though. For a lot, if not
most, of RF Cafe visitors, there has always been cable and satellite television. For some, TV has always been...
is an engineering design and manufacturing company specialized in RF and Microwave products, with more than 22
years of experience designing power combiners
and dividers, directional couplers,
hybrid couplers, and filters.
Their research and development group and engineering team constantly introduces new, top of the line products
into the product line. Please visit Nortec RF today and thank them for helping to deliver RF Cafe.
you know that from 1885 until 1938, prior to the advent of radar, the U.S. Weather Bureau banned the use of the
word 'tornado' in weather forecasts? According to a
story in Spectrum magazine, the bureau thought the mere mention of the word would strike fear in people
and prevent them from settling in tornado-prone Midwest and western plains regions. Believe it or not, the decision
was made in part because local business owners complained that customers stayed home in shelters rather than shopping
at their establishments when a tornado warning was in effect. An early tornado warning system was devised that
was so hokey that it is no surprise it never worked well enough to be adopted. A single wire with a series current
running through it was strung between all the houses and along a stretch of land southwest of town (most probable
approach direction of tornados). The current energized a solenoid that held cocked the hammer of a bell. If a
tornado broke the wire anywhere, the bells in all outfitted homes would strike to warn occupants of immediate
danger. I suppose it was better than nothing, but not very practical or effective, especially if a stray cow or
mischievous kid broke...
Technology Innovation announces the immediate availability of an
N-Type Calibration Kit for use with high precision
network analyzers and other test equipment requiring calibrated short, open, or 50 Ω load. A patented
design delivers 10% higher electric performance at 50% low cost and very fast delivery. Contact Dongjin Technology
Innovations today for details and pricing.
In case you haven't heard, Triad RF Systems and DCH Systems have combined forces recently to bring you
a powerhouse of amplifier design expertise. Dean Handrinos and Steve Barthelmes are highly capable
RF amplifier and system designers who each leveraged expertise
gained from prior industry experience to start their own companies a few years ago. I didn't ask how Triad RF
Systems was chosen as the new name for their merged companies - maybe it was a coin toss. Very soon you will see
the DCH Systems ads disappear from RF Cafe, but you can still reach Dean at Triad RF Systems. If you have a chance,
please contact them and wish them good fortune on their new endeavor.
36 crew members Chris Cassidy of NASA and Pavel Vinogradov and Alexander Misurkin of the Russian Federal Space
Agency have returned to Earth from the International Space Station, landing safely in Kazakhstan at 10:58 p.m.
EDT Tuesday. Cassidy, Vinogradov and Misurkin, who launched to the station March 29, spent 166 days in space.
They completed 2,656 orbits of Earth and traveled more than 70 million miles. Vinogradov conducted one spacewalk,
bringing his career total to seven spacewalks with an accumulated time of 38 hours, 25 minutes. Misurkin conducted
to embed RFID technology in their products are now able to do so without needing deep UHF antenna design experience
thanks to NXP Semiconductors' new online software tool. The
RFID – PCB Antenna Designer
tool helps implement antennas on a PCB in the UHF frequency range (840-960 MHz). UHF antenna design is more
complex than a typical HF antenna design and needs an expert understanding of the electronic design constraints.
With the RFID – PCB Antenna Designers can simply input parameters, such as space available on the PCB, target
performance, board materials, and target frequency range in the region of application to receive a turnkey UHF
antenna design for their specific application.
Al Qaeda attack on the power grid was my first thought on this eve of the 9-11 anniversary. When we arrived at
Erie's World of Music at 7:00 PM for Melanie to take her music lesson, we were greeted by employees telling
us all lessons were cancelled due to a power outage. The
lights were on when we left home 15 minutes earlier, and were still on when we got back. Isn't it odd how a music
school can't function these days without power because most of the instruments use electricity? The acoustic guitars
have electronic pick-ups now just like classic electric guitars, pianos are synthesized keyboards, and even the
drum sets are electronic look-alikes. Having it that way facilitates keeping noise levels down during the dozen
or more instruction sessions happening at any given time. It can get pretty loud in the WoM basement even with
volumes turned down...
Inc. announces a new RoHS compliant Fixed Frequency Synthesizer model
SFS10000C-LF in X-band. The
SFS10000C-LF is a single frequency synthesizer that operates at 10 GHz and features a typical phase noise of -100
dBc/Hz @ 10 KHz offset and typical sideband spurs of -70 dBc over the temperature range of -40º to 85º C.. The
SFS10000C-LF is designed to deliver a typical output power of 0 dBm with a VCO voltage supply of 5 Vdc Typical
2nd harmonic suppression of -30 dBc. SFS10000C-LF is an excellent choice for broadband transmission and fixed
years ago on this date Americans had their worlds turned upside-down with the news of hijacked airliners crashing
into the two World Trade Center towers, the Pentagon, and a field in Shanksville, Pennsylvania. For a myriad of
reasons ranging from political correctness to incompetence, the many indicators of such an attack being perpetrated
were ignored. Then, as now, news agencies and government offices refuse to identify the terrorists as extremist
Muslims. As you remember that horrific day, keep in mind all of the American and ally servicemen who have died
or have been gravely wounded in following years, and think of the multitude of freedoms you have lost since then...
Microwave has launched a new power amplifier which maintains excellent performance over its operating frequency
range. The HMC6981LS6 is ideal for high
linearity point-to-point and point-to-multi-point radios, SATCOM, military and space applications. The HMC6981LS6
is a four-stage GaAs pHEMT MMIC power amplifier which operates between 15 to 20 GHz. Ideal for covering
the 18 GHz licensed microwave radio band, the amplifier provides 26 dB of gain, +34.5 dBm of saturated
output power, and 25% PAE from a +6 V supply. Up to +43.5 dBm OIP3 and drawing only 1100 mA from
a +6 V supply.
always had a problem with book and article titles containing the word 'Modern' because it is utterly ambiguous.
What was modern in 1932 is usually obsolete merely a decade later, especially in high technology
(not so much in buggy whip state-of-the-art methods, though). Sometimes, as with
this article on
breakdown voltages, bringing the information up to date requires only the substitution of a few words. For
instance, replace 'condenser' with 'capacitor' and units of 'mfd' with 'μF' and 'mmfd' with 'pF,' then you'll
be on your way to gaining useful information. There is a nice nomograph for use in designing capacitors for specific
voltage handling and a table of dielectric puncturing voltages as well.
Technology Innovation announces the immediate availability of very affordable, patented,
composite DIN 7/16 connectors. The body material is a
composite plastic black with silver-plated bronze contacts, as opposed to a standard brass body and beryllium-copper
(Be-Cu) contacts. This newly developed 7/16 connector is seeing a steep increase
in use in leading countries like Japan, Germany, and the USA.
Antennas: Understanding Practical Antennas and Design, by Joel R. Hallas (QST's "The
Doctor Is In" columnist). Basic Antennas is a comprehensive introduction to antennas--basic concepts, practical
designs, and details of easy-to-build antennas. You'll learn how to make antennas that really work! This book
will provide a foundation in antenna theory and design necessary for anyone undertaking more advanced topics such
as those presented in The ARRL Antenna Book. Includes: Dipole Antennas, Antenna Impedance, Transmission Lines,
Practical Two Element Arrays, Wideband and Multiband Antennas Reflector Antennas, Yagis for HF and VHF, Loop Antennas,
Antennas for Microwave Applications, Vehicle Antennas, Antenna Measurements, Plus, an Introduction to Antenna
Modeling...and much more!
is no secret that I have a soft spot in my heart for vintage electronic equipment, particularly
vacuum tube radios. Believe it or not, you can even today buy a new radio
with tubes, but the tubes will only be in the speaker driver circuit. The front-end tuner circuitry will be solid
state. That's OK, because you still get a "real" orange glow from the tubes. If you really want a nostalgic experience,
you will need to procure an authentic vintage radio. Until about a decade ago, you used to be able to jokingly
say that you have a computer or a television that still uses vacuum tube technology. Now that there are virtually
no CRT computer monitors or TV screens in service (in 1st-world countries, anyway),
you can't get away with it. Bummer. I suppose someday when holographic or direct neural imaging is commonplace,
late-adopter types (like me) will joke about our computers and TVs still having physical
displays. On of the few remaining realms for vacuum tubes is high power transmitters used in radio and television
broadcasting. It is evidently still cheaper and easier to build a tube...
Industries, Inc. is pleased to announce two new additions to our series of mini-benchtop, programmable attenuator
50BA-011-95 offers 0-95 dB of attenuation in 1 dB steps from 200-6000 MHz, while the
50BA-010-127 gives 0-127 dB and operates 700-3000 MHz. Other configurations are also available.
The mini benchtop models are JFW’s latest line of attenuator assemblies. These units are DC powered using a wall
transformer that is shipped with each unit. The attenuation of each variable attenuator is displayed on the front
panel. Controlled remotely or manually.
Microwave Corporation is the world's largest manufacturer of electro-mechanical
RF switches. They are AS9100/ISO-9001 certified and committed to providing unparalleled customer service,
competitive pricing, on-time delivery and switch products that are distinguished by quality and reliability. Dow-Key
offers the largest switch product line in the world with over 10,000 unique configurations.
everyone who visits websites like RF Cafe are seasoned electronics veterans. While you and I can do series and
parallel circuit analysis (and series/parallel for that matter, possibly using Fourier or
La Place transforms for reactive AC circuits) in our sleep, many are recently getting into the wonderful
world of electronics who are just coming of age or have suddenly at a later point in life developed a passion
for the craft. Accordingly, this article from Radio News provides yet another tutorial on the fundamentals of
series and parallel
circuit analysis. Only resistors and basic Ohms law are covered.
in 2005, LadyBug Technologies manufactures the PowerSensor™ line of miniaturized
USB RF & microwave power sensors. LadyBug manufactures
high accuracy average, pulse, and
profiling sensors with GUI interfaces covering up to 26.5 GHz and 80 dB dynamic range. These sensors
set a, patented industry standard, No Zero / No Cal technology. There is no need to disconnect or wait
for internal zeroing and calibration prior to making accurate low power measurements. Driver support is provided.
Antenna Systems, formerly European Antennas, has been a long-time advertiser on RF Cafe. Cobham specializes in
the design and development of high gain, printed
circuit antenna arrays, ultra wide-band directional
antennas, multi-octave bicones and high gain collinear omni-directional antennas. They have a large catalogue
of antenna designs. Specialist development projects from 250 MHz to 40 GHz. Communication industry awareness
and expertise in antenna physics ensure customer satisfaction is their forte.
you've got someone who's good in an emergency, get rid of him or you'll always have emergencies." Anon - old engineering
Sherlock Ohms author Rod Hine.
a much-deserved break and work this week's
Microwave Engineering themed crossword
puzzle. All the words are pulled from a hand-built list of terms, names, and abbreviations that have only
to do with science, mathematics, and engineering. If you want a crossword with names of movie stars and obscure
countries, try the local newspaper. If you want to exercise your nerd knowledge, this is the one for you.
to Rohde & Schwarz, a leading manufacturer of RF & microwave test equipment, for allowing this reprint
for their "Simplifying
Signal Analysis in Modern Radar Tests" article that appeared in Microwave Journal's August 2013 edition
of Military Microwaves publication. The R&S
FSW-K6 Signal and Spectrum Analyzer is used to make measurements and for screen shots. "The evaluation
of direct digital synthesis (DDS)-based radar systems is challenging for traditional
signal analysis test techniques. This is especially true when it comes to pulse compression analysis, pulse trend
analysis over time and frequency agility verification. The test tools used to simplify the testing of modern radar
systems are evolving, like the systems they must test. This article focuses on the evolution of spectrum analyzers
from relatively basic instruments used for measuring traditional pulsed signals to the advanced test system architectures
required for signal analysis of leading-edge radars. Sophisticated, next-generation radar systems benefit from
advances in digital technology and computational power. The trend is toward the use of DDS to enable powerful
once again to Advanced Test Equipment Rentals for supporting RF Cafe through continued advertising. Please consider
their services when looking for test equipment. ATER (aka ATEC) provides the latest
models of test and measurement equipment from top name manufacturers
like Agilent, Fluke, Anritsu, R&S, Tektronix, and Yokogawa. Their primary focus is providing a complete rental
solution of test and measurement equipment to industries such as Aerospace, Defense, EMC, and Communications.
RF Systems continues to leverage next generation hardware and software architecture and is proud to introduce
the next series of the "size matters" portfolio - 500 W
in 3U chassis. This new PA family operates in the frequency ranges of 20 - 500 MHz
(Model 2173), 500 - 1000 MHz (Model 2174) and 20
- 1000 MHz (Model 2175) with the output power guaranteed over full bandwidth
and temperature. You won’t find another HPA alternative in the marketplace that rivals our unique combination
of package, size, weight and power, not to mention, an inventory program from a global distributor Richardson
is a great primer for anyone looking for an easily understandable way to explain the basics of
radio signal fading to acquaintances, or for that matter to understand it yourself if you don't already. As
I review the material for taking my amateur radio General Class exam, there is information about atmospheric absorption
in the various ionospheric layers during daytime and nighttime. Prior to studying the manual, I either never knew
or once knew but have forgotten about the upper F1 and F2 layers combining into a single layer at night when the
sun's radiation and particle bombardment is blocked by the earth. This article doesn't go that deep into the physics,
but it does a good job of making a complex topic simple enough...
has been in the news lately for having sold its cellphone line to Microsoft for $7.2 billion
(US). Was it a good move? At least immediately, it depends on whether you owned Microsoft
stock or Nokia stock. Responding to the news, Microsoft's stock shed $1.52 (-4.6%)
to close Tuesday at $31.88. Nokia's shares surged $1.22 (+31%), to finish at
$5.12. Microsoft's Windows Phone operating system has been in Nokia phones since 2011. Nokia was knocked
from its #1 rank pedestal a couple years ago and is currently in the #2 slot, with Apple following, then China's
ZTE. Nokia's debut in the cellphone realm was in 1992 with the Mobira Senator. It wasn't quite a bag phone, but...
over 25 years Res-Net Microwave has manufactured precision
microwave attenuators, terminations, and other components, and now diode detectors for commercial, military,
and space applications. Res-Net Microwave is a leader in the development and production of the metal films required
for these types of RF/microwave attenuators, terminations, and resistors up to 2 kW. Now offering 4-week lead
times on standard products including: attenuators, resistors, and terminations.
See answer submitted by Greg F.
RF Cafe visitor L. Joseph wrote to request that the following question be posted in hope that someone will provide
an answer. If you care to reply, please either e-mail your answer to me so I can post it, or reply on LinkedIn.
"This is the question I am trying to get an answer for: Let us take a 100 ohm termination in a 50 ohm
system and add a 50 ohm transmission line of
0.2 lambda (0.2λ) length. At the end of this 0.2 lambda line I will get an impedance corresponding to
some VSWR1. Then, I change the termination from 100 ohms to 75 ohms and at the end of the
0.2 lambda line VSWR2 will be VSWR2 = VSWR1/(100/75) = VSWR1/1.33.
Will the same rule apply..."
Microwave Company announces two new additions to their line of
RF variable/step attenuators. Both models
are panel mountable and have SMA connectors. Part number DRA2-2.7-30-SMAF (left)
is a Dual Rotary Attenuator with an attenuation range of 0-30 dB from DC-2.7 GHz with a VSWR of 1.30:1
to 1.40:1. Part number SRA2-2.2-10-SMAF (right) is a Single Rotary Attenuator with
an attenuation range of 0-10 dB from DC-2.2 GHz . Both units handle up to 2 W at an operating temperature
range from -55°C to +85°C.
RF engineer Joe Cahak, owner of Sunshine Design Engineering Services, has written a series of white papers
on S-parameters. This third installment is titled, "Measurements
with Scattering Parameters." "In many RF and Microwave measurements the S-Parameters are typically expressed
in dB (decibels) Magnitude units and Degrees in the polar coordinate system. Network
and Vector Network Analyzers and Spectrum Analyzers all measure with voltage ratio measurements, so to convert
to dB in terms of volts we must use the following equation..."
is an interesting short article on the EDN website. Author Eric Bogatin, who has written books such as
Signal and Power Integrity - Simplified, asserts that common [mode] currents
(he detests the 'mode' term), while not desirable, are not always a matter of concern.
"Generally, if the return path of the common current is far from the signal path, then these common currents will
radiate. These are bad common currents. But if you can engineer the return path of the common current to be in
proximity to the source current, the loop area will be small and he common current will not radiate." "Not all
common currents are bad. Give microstrip traces a break."
Press was a department manager at RFMD during my 6½ years there as an RF Applications Engineer. While he and
I only worked together a couple times, we did manage to hold a few memorable discussions - usually on holidays
when most normal people had taken the day off - on a broad range of social, economic, and national defense topics.
None of humanity's problems were ever solved as a result of our dialogs, but I did come to have a great respect
for Mike's worldview as what I deem a classical Liberal. By that I mean one whose focus is on compassion for his
fellow man and truly wanting to foster unity, as opposed to many modern Liberals who seem angrily intolerant and
want to destroy anyone that disagrees with any of their positions. Yes, some Conservatives are regrettably that
way as well...
month I select someone to receive a free book from those
provided by Artech House and Cambridge University Press. They are often books I have used to create
quizzes. How to enter? Either
buy one of my inexpensive software offerings
or send me an e-mail. This month's winner, Steve L., selected Introduction to
High-Frequency Integrated Circuits (Cambridge University Press), by Rosin
Voinigescu. "A transistor-level, design-intensive overview of high speed and high frequency monolithic integrated
circuits for wireless and broadband systems from 2-200 GHz, this comprehensive text covers high-speed, RF,
mm-wave, and optical fibre circuits using nanoscale CMOS, SiGe BiCMOS, and III-V technologies..."
Solutions unveils a highly integrated,
5 GHz front-end
module for wireless connectivity, Bluetooth and mobile applications that exceeds 802.11n system requirements.
The SKY65535-11 integrates a power amplifier, a low noise amplifier with bypass, and a single-pole-double-throw,
transmit/receive switch in a 16-pin, 2.5 x 2.5 mm, quad-flat-no-lead package. Because the
solution provides a direct connection to the battery with a 3.6 V nominal supply voltage that removes the
need for regulators and associated components, the module reduces the overall bill of material costs and space
requirements on the circuit board. An integrated power detector with 20 dB of dynamic range that delivers
closed-loop power control within the system.
Mixer Technology, by Bert Henderson and Edmar Camargo, is published by Cambridge University Press. Although
microwave mixers play a critical role in wireless communication and other microwave applications employing frequency
conversion circuits, engineers find that most books on this subject emphasize theoretical aspects, rather than
practical applications. That's about to change with the forthcoming release of Microwave Mixer Technology and
Applications. Based on a review of over one thousand patents on mixers and frequency conversion, authors Bert
Henderson and Edmar Camargo have written a comprehensive book for mixer designers who want solid ideas for solving
their own design challenges.
Technology Innovation announces the immediate availability of very
high performance connectors. Industry standard connector
types have useful frequencies extended from the typical 11 GHz up to 18 GHz using proprietary constructions
such as soldered shield connections for better isolation and higher pull-off force. Contact Donjin Technology
Innovations today for details and pricing.
Windfreak Technology designs, manufactures, tests and sells high value radio frequency products such as
RF Signal Generators, RF Synthesizers, RF Power Detectors,
RF Mixers, RF Upconverters and RF downconverters. They develop high quality, reliable, low cost products to
make your life easier. Windfreak Tech is developing high quality, low cost products to make life easier for RF
Engineers and hobbyist. Future products will be more synthesizers, transmitters, receivers and test equipment.
All at low cost.
fool with a tool is still a fool." - Anon. This comment was left by a website visitor in response to the news
story about a
drone operator who ran his craft into a groom's head while filming a wedding video.
was a multi-part series published by Radio & Television News in the days when
was the domain of the more well-to-do folks on the block. Needless to say, nobody I knew had color TV before abound
1968. One of my friend's father owned a fairly profitable gas station and service garage, so they were the first
to have one. For some inexplicable reason, his mother never allowed more than one or two of us into the house
at a time, so we drew straws to see who got to witness that fabled miracle of technology. I was about third in
line. Insomuch as the 1960s were a much more polite and private time than the present, peeking through a living
room window for a preview was expressly verboten. In fact, going into a friend's house for any reason was rare.
The privileged appointments were strictly adhered to...
folks at Rev Response have a pretty big collection of white papers on a very wide range of subjects that are free
for downloading. Well, not quite free - they do require you to sign in, but no $$$ is involved. I make a few pennies
on each download, so you're helping to support RF Cafe if you participate. Here are a few of the newer ones that
might interest you:
Cut That Cord! How to
Windows 8 Keyboard
Shortcuts Cheat Sheet
Aerospace Industry Takes
a Fresh Look at Its Wire
Harness Design Approach
Critical Success Factors for
Consumer Electronics &
Appliance Companies to
Meet Today's Top 3 Issues
Top 5 Tips for Choosing
7 Steps for Using Twitter
for Small Business
Photoshop CS6 Unlocked:
101 Tips, & Tricks -Free 61
a break and work this week's RF Engineering
themed crossword puzzle. All the words are pulled from a hand-built list of terms, names, and abbreviations
that have only to do with science, mathematics, and engineering. If you want a crossword with names of movie stars
and obscure countries, try the local newspaper. If you want to exercise your nerd knowledge, this is the one for