|
 "Cornell
University's 'ChipSat'-equipped light sail was successfully deployed on December
3 and several dozen telemetry signals from its ChipSat flight computers have
been received and decoded. This is the first time that orbit-to-ground ChipSat
data has been fully decoded, which Ph.D. candidate Joshua Umansky-Castro,
KD2WTQ, calls 'a huge milestone for the technology.' Student researchers at
Cornell still
seek help from amateur radio operators equipped with satellite receive
stations to continue monitoring for signal from the 100-milliwatt transmitters
on 437.400 MHz, using the LoRa® digital protocol. It is estimated that the light
sail will deorbit within 48 hours..."
 RF Cafe visitor Rick M. was kind enough
to send me this message and info re the
TYPIT® product: "Years ago you posted about Typit, these accessories for
typing scientific characters. My father was a physics prof and academic dean at
a small college in Kansas, which apparently made him a prospective customer for
them. In Dad's papers I found their materials and a sample Typit. Just thought
you might be interested." Turns out using them is different that what I had
envisioned, involving replacing keys. It is actually a very convenient scheme
with no key replacement required...
 Always the consummate story teller,
John T. Frye began his writing career long before his "Carl & Jerry" electronics adventure series that ran monthly
for many years in Popular Electronics. His style featured creating a dialog
between instructor and student, serviceman and customer, husband and wife, father
and son, etc., in order to present an educational experience with back-and-forth
inquiry and responses. In the ended, the reader learns something about both sides
of of the situation. In this story, electronics
service shop owner Mac reassures technician Barney that given time and patience,
he will grasp the circuit concepts of the...
 Do you know what a "gimmick" is in the RF circuit world? If you have ever had the
occasion to repair or recondition inductors (coils, chokes, etc.), then you have
probably seen one and probably didn't know what it was. Read on to learn about a
gimmick capacitor. Working with the tiny wires on those old coils can be a real
challenge. Words you hadn't uttered in a long time tend to move to the forefront
of your memory in the process. Having struggled with a few multi-layered
RF coils from old radios, I am familiar with the intricacies of
trying to use fat fingers to wind and splice 40-gauge enameled wire in spaces 1/8-inch
wide. Many of those older coils are wound in thin, tall rings whose wires have a...
 The "Space Race" was in full swing when
this "Space
Relay Station" article appeared in a 1959 issue of Radio-Electronics
magazine. The Russkies launched Sputnik into Earth orbit on October 4, 1957. The
U.S, to its shame, didn't orbit a satellite until January 31 of the next year (Explorer 1). In
December 1958, Project SCORE marked the first successful demonstration of space-based
communications using an orbiting relay station aboard an Atlas missile. This military-industry
collaboration proved the feasibility of global communication via satellite, transmitting
both voice recordings and multi-channel teletype signals. The 35-pound communications
package operated in three modes: storing messages on magnetic tape for delayed broadcast,
instantly relaying signals, or broadcasting...
 "This is the sixth of seven articles devoted
to the topic of shielding to prevent electromagnetic wave radiation. The first article
discussed the reflection and transmission of uniform plane waves at a normal boundary.
The second article addressed the normal incidence of a uniform plane wave on a solid
conducting shield with no apertures. The third article presented the exact solution
for the shielding effectiveness of a solid conducting shield. The fourth article
presented the approximate solution obtained from the exact solution. The fifth article
discussed the wave impedance of electric and magnetic dipoles. In this article,
we will use the concept of wave impedance to determine the shielding effectiveness
in the near field..."
 Instrument Landing Systems
(ILS) has been around since the early 1930s, as made
apparent by this article in Short Wave Craft magazine. Frequencies, circuits,
and infrastructure equipment have evolved over the years, but fundamentally, landing
an aircraft (airplane, helicopter, dirigible) under
'blind' flying conditions has not changed. Two precision beams - one in elevation
and one in azimuth - broadcast by ground-based installations are detected by airborne
receivers and relative positions are displayed for the pilot's use in navigation.
ILS does not help the pilot fly the aircraft; it only leads him to the runway threshold.
In the past couple decades, space-based Global Positioning System
(GPS) equipment has increasingly been used to...
 Are you a
project builder? If so, then you probably make a point of reading
hints and tips offered by fellow aka do-it-yourselfers. Even with the ready availability
of just about anything you need already pre-manufactured, there are still times
that you either just want to figure out a better way of doing something or happen
to have a challenge that does not have a solution that can be purchased from a catalog
or on eBay. I have posted a few DIYer features from some of the vintage electronics
magazines, many of which are still relevant, or might at least give you an idea
for how to accomplish...
 We're excited to invite you to the Annual
AOC International Symposium & Convention 2025! Visit Anatech Electronics
at Booth 1013 to explore our latest RF and microwave
solutions, meet our experts, and discover how we can support your next project.
When: December 9-11, 2025 Where: Booth 1013 Gaylord National Resort &
Convention Center, National Harbor, MD Amidst this dynamic environment, Anatech
Electronics remains a reliable partner. Whether your platform operates on the
ground, at sea, or in space, Anatech Electronics offers tailored solutions
for all your filtering needs. See you at the show!
 By 1946, radio and television manufacturers
were scurrying to supply the huge, pent-up demand for
communications and entertainment systems that accumulated during
World War II. Fortunately, the dearth of electronics components, raw materials
for chassis fabrication, and available labor was suddenly and significantly turned
around by late 1945. Wanton destruction of entire cities in Europe left citizens
without many basic creature comfort items like radios, televisions, refrigerators,
vacuum cleaners, toasters, automobiles, and other things taken for granted a decade
earlier. As with any well-executed plan, manufacturers endeavored to survey the
market demand for such products and then devised...
 In his 1959 Radio-Electronics magazine
editorial, noted futurist Hugo Gernsback identified
millimeter waves as an undeveloped frontier with immense potential. He accurately
stated the technical hurdles: inefficient generation, atmospheric absorption by
oxygen and water vapor, and the need for waveguides and horn antennas instead of
conventional cables. Gernsback predicted these waves would solve spectrum congestion
by enabling hundreds of thousands of telephone and television channels on a single
line. He foresaw space applications, suggesting millimeter-wave transmitters could
communicate across interstellar distances...
 In that these
comics from Radio-Craft magazine have an electronics theme, you can
claim looking at them is work-related. The themes of the comics reflect common scenarios
of the 1944-1945 era in which they were published, but with not much modification
can be applied to today's environment. People will always expect more features from
products, will be critical of everything presented to them, and will want to haggle
for the best deal from the used camel salesman. You might consider using one of
them for your next conference or project status presentation. I missed the comic
on page 32 on the first posting of this page, but it's at the top now...
 I started collecting Social Security a little
less than a year ago, at age 66 years and 8 months - full retirement age for being
born in 1958. If I had begun earlier, the payments would have been lower, and the
SSA would deduct $1 in benefits for every $2 earned above $21,240 (in 2025). I could
end up with $0 from SSA. Sucks, right? That's while Billion$$$ are being stolen
through immigrant fraud programs. As if that isn't a big enough kick in the posterior,
SSA announced a 2.80% cost of living increase
for 2026 - while raising the Medicare cost by 9.68%
(deducted from my SS check). That is the reward for half a century of hard work
and honest living. This is why working people despise politicians and bureaucrats
(and why freeloaders love them).
 It'll take selling a lot of EBT cards to
buy one of these -- "The
Galaxy TriFold costs $2440. When unfolded it has a ten inch display. 'I believe
the foldable market will continue to grow, and the TriFold in particular could act
as a catalyst that drives more explosive growth in key parts of the segment,' says
Samsung evp Alex Lim. Currently, foldables have only 2% of the market.' The phone
is 3.9 mm thick at its thinnest point. It uses a Snapdragon 8 Elite chipset and
has a 200 MP camera and a 5,600 mAh three-cell battery. 45 W charging can charge
the TriFold to 50% in 30 minutes. Samsung refined the Armor FlexHinge for the TriFold.
Two differently sized hinges with a dual-rail..."
 Electroluminescent (EL) devices were patented
by General Electric back in 1938, but it was not until the 1960s that the fabrication
process, involving copper-doped zinc sulfide (ZnS) as the light-emitting compound,
had developed to the point where high volume production was feasible. Early EL displays
exhibited short lifetimes and low efficiencies. EL panels are also referred to as
light-emitting capacitors because of their construction geometry. Some of the first
commercial applications for such EL panels were as back lighting in automobiles.
Electroluminescence can also be obtained in semiconductors in the III-V group class
like indium phosphide (InP), gallium arsenide (GaAs), and...
 1945 or 2025? Seventy years have passed
since this photo of a
vacuum tube manufacturing facility in China was taken. Given that
most new vacuum tubes are made in China, and that the labor work conditions have
not changed much in the intervening time period (except in high-profile plants like
Foxconn where Apple products are made), this might very likely represent a modern
day operation. BTW, most of the vacuum tubes not being made in China are made in
Russia... to assure their antiquated infrastructure has an ample supple of replacement
parts. I say that only partly in jest. The largest market for new vacuum tubes is
music amplifier equipment and a few...
 Werbel Microwave is a manufacturer of RF
directional and bidirectional couplers (6 dB to 50 dB) and RF power dividers
/ combiners (2- to 16-way) with select models operating up to 26.5 GHz and
100 W of CW power (3 kW peak). All are RoHS and REACH compliant and are
designed and manufactured in our Whippany, NJ, location. Custom products and private
label service available. Please take a couple minutes to visit their website and
see how Werbel Microwave can help you today.
 In 1959, RCA introduced the
nuvistor, a vacuum tube featuring a metal-ceramic envelope, cantilevered cylindrical
electrodes, and fully automated brazed construction. Designed for shock resistance,
low power consumption, and miniaturization, it offered improved gain and noise figures
over conventional tubes, with applications ranging from TV tuners to military equipment.
RCA positioned the nuvistor as a superior alternative to transistors. Despite advantages
and initial optimism that it would prolong the vacuum tube era, the nuvistor ultimately
failed to halt the transistor's advance. Solid-state technology rapidly...
 All types of
sales and repair services get accused of ineptness of skill which
requires more time than necessary, overcharging for parts and/or labor, underhandedness
in faking problems and selling unnecessary replacement parts, improper customer
interfacing, sloppiness in appearance and/or work environment, failure to arrive
on time for appointments, etc. Some of the most often cited these days are auto
mechanics, cellphone repairers, home improvement contractors, lawn care, and builders.
Up until about a decade ago when cellphone repair began to dominate over computer
repair, the latter was a big source of complaints. In the 1950s and 60s, it was
TV and radio repairmen who took a lot of abuse not just from their customers...
 "November 2025 marked a pivotal turning
point in U.S. economic history, signaling a significant shift driven by an unprecedented
alignment between federal power and private investment. This pivotal moment saw
the world's leading technology and semiconductor giants pledge massive investments
- from Amazon's colossal $50B commitment to U.S. government AI infrastructure to
Samsung's $310B chip fab investment - highlighting the scale and importance of private
sector engagement in shaping U.S. industrial strategy. Yet, this 'Great Reallocation'
is not a triumph of free-market forces..."
 These custom-made
engineering and science-themed crossword puzzles are done weekly
for the brain-exercising benefit and pleasure of RF Cafe visitors who are fellow
cruciverbalists. The jury is out on whether or not this type of mental challenge
helps keep your gray matter from atrophying in old age, but it certainly helps maintain
your vocabulary and cognitive skills at all ages. A database of thousands of words
has been built up over the years and contains only clues and terms associated with
engineering, science, physical, astronomy, mathematics, chemistry, etc. You will
never find a word taxing your knowledge of a numbnut soap opera star or the name
of some obscure village in the Andes mountains. You might, however, encounter the
name of a movie star like Hedy Lamarr or a geographical...
 Empower RF Systems is proud to announce
the release of its latest
C-UAS RF amplifier module, Model 1211, engineered for robust performance in
demanding military and defense applications. Operating across 500 to 2500 MHz
frequency range the Model 1211 guarantees a minimum of 100 watts of output
power while typically delivering up to 125 watts. With efficient class AB GaN
on SiC design, the 1211 supports CW, AM, FM, and pulse signals while maintaining
high reliability, low harmonics, and ruggedness under extreme conditions. For complete
20 to 6000 MHz coverage, this module can be partnered with the 1193 and 1212
modules. Each in the same form factor with a common digital interface...
 Maybe it comes from having crossed the half-century
Rubicon, but with increasing frequency I find myself seeking out vintage magazines
to learn how the world used to be. I am a realist who has no misconceptions about
how idyllic things used to be and that today is utter debauchery, but it is apparent
from a lot of the publications that we surely have changed significantly in the
last 50+ years - better in some ways, worse in others. For many years I have been
purchasing of WWII era QST magazines off eBay. As I have been doing for a while
on my Airplanes and Rockets website, I am going to begin scanning and posting vintage
electronics magazine advertisements and articles. A lot of the information is timeless
in its application, especially since vacuum tubes are still in widespread use in
the Amateur Radio realm. Of course electronics...
 You can tell by the fact that four out of
five of these
tech-themed comics from Radio-Electronics magazine concerned the repair
of television that TVs were a big thing in 1957. The relatively recent end of World
War II and more recently the Korean War, left a lot of highly trained and skilled
troubleshooters and operators, so the field was fairly flooded with qualified people.
Men's magazines (Mechanix Illustrated, Popular Science, Popular
Electronics, etc.) were always chock full of full-page advertisements for learn-at-home
television repair courses for becoming a serviceman. A successful electronics repairman
could earn as much as $40 per week or more! As the comics imply, there was a fairly
significant love-hate relationship between TV owners...
|
 • NextGen
Wi-Fi Is Blazing Fast
• China's
Factory Activity Shrinks for 7th Straight Month
• FCC
Accelerates Wireless Infrastructure Buildout
• European
Q3 Semi Sales up 7.2% on Q2
• Silicon
Catalyst Japan Founded
The RF Cafe Homepage
Archive is a comprehensive collection of every item appearing daily on this
website since 2012 - and many from earlier years.
 Here is the last
engineering- and science-themed crossword puzzle for October.
These custom-made crosswords are done weekly for the brain-exercising benefit and
pleasure of RF Cafe visitors who are fellow cruciverbalists. The jury is out on
whether or not this type of mental challenge helps keep your gray matter from atrophying
in old age, but it certainly helps maintain your vocabulary and cognitive skills
at all ages. A database of thousands of words has been built up over the years and
contains only clues and terms associated with engineering, science, physical, astronomy,
mathematics, chemistry, etc. You will never find a word taxing your knowledge of
a numbnut soap opera star or the name of some obscure village in the Andes mountains.
You might, however, encounter the name of a movie star like Hedy Lamarr...
 Radio-Electronics magazines' "Service
Digest" column regularly reported on issues relevant to the electronics servicemen
who repaired radios, television sets, phonographs, recorders, and similar items
- often in the customers' homes. Then, as now, professionalism and courteous behavior
was often rewarded with word-of-mouth referrals to friends and relatives, resulting
in new business opportunities. An interesting topic also included was the need to
observe extreme caution when working around TV tubes (CRT's) not just because of
the lethally high voltages present, but because of the
danger of tube implosion and the resulting scattering of glass shards. An example
given is that due to standard atmospheric press of 14.7 lbs/in2 on the outside of
the evacuated volume, a 17-inch screen CRT tube supports a total pressure of 3,322
pounds, or 1.66 tons...
 Continuing with the series on capacitor
types, particularly dielectric material, this July 1965 Electronics World
magazine article reports on glass materials used by Corning Glass Works. Glass dielectrics
are popular for aerospace and space applications because of their tolerance for
high radiation levels found in regions not protected by the Earth's atmosphere.
Glass compound consistency provides for mass producing values with tight tolerances
and exceptional parameter tracking over temperature. High "Q" values and low loss
at extreme temperature and high frequency (at the time) made them the component
of choice by missile and satellite designers. 0.5 pF through about 0.01 μF
is the typical value range for
glass dielectric capacitors. Author Archer Martin mentions radiation exposures
of 1018 NVTth, which appears to be a measure of neutron flux exposure, but I could
not find a good definition of the term ("NVT," without the "th" is used here)...
 Have you heard of an electronic musical instrument
called a Theremin? You can still buy from Moog today the same sort of Theremin that
was described in this
Carl & Jerry episode from a 1961 issue of Popular Electronics magazine.
Ever the early adopters of breaking technology, the teenagers exploit the motion-sensitive
feature of the Theremin in hopes of improving Carl's basketball game. As usual the
boys, in mock dialog, describe the Theremin's operational theory for the benefit
of readers not familiar with the musical instrument. They do not, however, mention
that the device is named after its Russian inventor, Léon Theremin, who patented
the device in 1928. Read on to discover how a Theremin strapped to Jerry's back
was used to help Carl be a better free-thrower...
 Well... anyway it was 50 years ago referenced
to the year this story was published in the 1937 issue of Radio-Craft magazine.
That makes it 85 years ago referenced to 2022. The story's point is that half a
century had passed already since the confirmation of existence of electromagnetic
(EM) waves as proposed by James Clerk Maxwell.
Heinrich Hertz's "Funken-Induktor" (spark inductor) and his "Knochenhauershen
Scheiben" (Karl-Wilhelm Knochenhauer's disk-type capacitors) were key to Hertz's
ability to generate, transmit, and receive EM energy. The work originated from attempts
to prove that light was a form of electromagnetic waves...
 Electronics magazine editor Lewis H.
Young dedicated a series of issues in 1965 to reporting on the state of
electronics research and production in Japan. The December 13
edition had many articles on the subject. The world was still in the early phase
of a major transition from vacuum tubes and discrete components to transistors and
integrated circuits. Japan was at the leading edge of that effort - and it was very
successful. Ample evidence of the not-quite-there-yet status of the transition is
all the advertisements in this edition of the magazine. Products showcased by manufacturers
were discrete, not integrated - that applies to both electronic and mechanical subjects.
When you look at those components and assemblies, you get feel for what made them
work because the individual parts are in view. Many modern products are integrated
into packaged and tested subassemblies that are ready to be integrated...
 This custom RF Cafe
electronics-themed crossword puzzle for February 12th contains words and clues
which pertain strictly to the subjects of electronics, mechanics, power distribution,
engineering, science, physics, astronomy, chemistry, etc. If you do see names of
people or places, they are directly related to the aforementioned areas of study.
As always, you will find no references to numbnut movie stars or fashion designers.
Need more crossword RF Cafe puzzles? A list at the bottom of the page links to hundreds
of them dating back to the year 2000. Enjoy.
 When many people hear the name of
Bell Telephone Company, the first thing they think of is the court-directed
breakup of Bell System into what became known as "Baby Bells" after being sued for
monopolistic policies. What is too often forgotten - or more likely never realized
- is the immense role Bell played in the building of America into an industrial
and technology giant. Vintage magazines like this 1949 issue of Radio-Electronics
as well as many other types including The Saturday Evening Post, Popular
Mechanics, Family Circle, and many other publications commonly found
in homes, contained full-page advertisements by Bell Telephone Laboratories promoting
their work and reminding subscribers of how their hard-earned money was being invested
on improvements. Along with the Interstate Highway System, America's robust, dependable,
and high quality personal communications...
 As evidenced by this advertisement in a circa
1951 issue of Radio & Television News magazine,
Channel Master has been producing commercial broadcast television and radio
antennas and antenna accessories for a really long time. They are one of the very
few companies still making such items, with RCA being another. A few years ago I
bought a high gain Channel Master VHF-UHF-FM antenna for use with my vintage Alliance
Model U-100 Tenna-Rotor. Both companies still sell remote control (wired) antenna
rotators. Being an ardent over-the-air broadcast adherent, having a good old-fashioned
steerable, multielement antenna is quite nice. I can dial in any TV or FM radio
station within 50 miles, and some from over 100 miles away. I would like to have
a similar setup for AM radio, but the antenna length gets out of hand at 530 to
1,700 MHz (525 to 1,705 MHz including 10 kHz channel spacing)...
 This
RF Engineering Theme crossword puzzle for January 31st contains
only words and clues related to engineering, mathematics, chemistry, physics, and
other technical words. As always, this crossword contains no names of politicians,
mountain ranges, exotic foods or plants, movie stars, or anything of the sort unless
it/he/she is related to this puzzle's technology theme (e.g., Hedy Lamarr or the
Bikini Atoll). The technically inclined cruciverbalists amongst us will appreciate
the effort. You will need to print out a hard copy. Enjoy!
 Sure, there are lots of resources on the
Internet for identifying various
screw types, styles, shapes, and sizes, but sometimes there are so many that
it can be time consuming to peruse through them all, particularly if what you are
looking for is an older type. This chart from a 1960 edition of Popular Electronics
magazine might be just the thing you have been looking for when working on a piece
of vintage electronic and/or mechanical gear. Interestingly, at first I thought
there might be a typographical error in labeling one type screw head as "Bristo,"
thinking it is probably supposed to be "Bristol." I could not find many references
to a Bristo screw type in searches, but evidently it did exist back in the day.
They now go by the name Bristol...
 "The year 1950 will be recorded historically
as the year the microwave relay made its impact felt." That was the closing sentence
by Philco Sales Engineer Leo Sands in his 1950 Radio & Television News
magazine article entitled, "The
Microwave Era Begins." Mr. Sands was not suggesting that it was the start
of the widespread use of microwaves in general, but specifically the use of microwaves
for long distance, broadband transmission of telecommunications signals. 1950 is
about the time microwave relay stations began appearing on hilltops and rooftops
of tall buildings all across the land, with the goal of replacing coaxial lines
which needed to be strung or buried from end to end. Great cost is associated with
a hardline approach for acquisition of land rights, installation, and maintenance.
Yes, those kinds of expenses are required for microwave relay stations, too, but
in the long run they tend to be much lower, and the service much more reliable and
"upgradable." Lots of people opposed the installation of the unsightly, behemoth
towers, and many people expressed concern over exposure to microwave energy. If
only they knew then how miniscule their worries were compared to today's situation
with cell towers within eyeshot of just about ever locations on earth...
 Here is your custom made
Electronics Themed crossword puzzle for November 13th, 2022. All RF Cafe crossword
puzzles are custom made by me, Kirt Blattenberger, and have only words and clues
related to electronics, electricity, radio, radar, RF, microwave, and mm-wave engineering,
optics, mathematics, chemistry, physics, and other technical subjects. As always,
this crossword contains no names of politicians, mountain ranges, exotic foods or
plants, movie stars, or anything of the sort unless it/he/she is related to this
puzzle's technology theme (e.g., Reginald Denny or the Tunguska event in Siberia).
The technically inclined cruciverbalists amongst us will appreciate the effort.
Enjoy!
 The July 1965 issue of Electronics World
magazine contained articles on many types of capacitors being used at the time.
As of this writing I have posted the articles on paper and plastic film capacitors.
Still to come are mica, ceramic, and glass. Newer dielectric formulations have been
developed since then, with some being improvements on existing types and others
being either rarely or never used back then. Notably missing in the capacitor formats
are distributed element on substrate, semiconductor, and air (vacuum). Construction
and parameters for both
polarized and non-polarized electrolytic capacitors are addressed by Mr. H.
Nieders, of the Mallory Capacitor Company (now Duracell)...
 For a few years, each month's edition
of Radio-Electronics magazine included a column entitled "The Radio Month,"
which was a collection of a dozen or so relevant news items. The March 1953 issue
reported on transistorized hearing aids (those old vacuum tube types didn't fit
in your ear very well), how the number of TV sets in the U.S. had out-paced the
number of telephones thanks to new UHF channels, the continued rapid expansion of
television in Europe, and the upcoming 1953 I.R.E. Show (Institute of Radio Engineers)
in New York City. Of particular note was the new germanium ore source discovered
in Kentucky - not the first place I think of with a semiconductor mother lode. At
the time,
germanium (Ge) was still the primary element used in transistors and diodes,
although silicon was making rapid inroads. The story was germanium sold for $350
per pound in pure metallic form...
 It had been only a little over a decade since
the transistor was invented when this article appeared in the August 1959 edition
of Popular Electronics. Transistors were still a mystery to most people,
including engineers, technicians, and hobbyists. Author James Butterfield takes
a unique approach in presenting the material by writing it as a dialog between an
instructor and a student. If you are also
new to transistors, this will be worth your while to read. The
basics will never change. As an aside (and mentioned in the article), while still
a technician I had a manager one time who actually told an engineer working for
him that a transistor could be made by soldering two diodes together and using the
center node as the base connection...
 Out of the nearly half a hundred quizzes I have
posted from vintage Popular Electronics magazines, this
Semiconductor Quiz that appeared in a 1967 issue is the first I can
remember that was not created by Robert P. Balin. A fellow named Warren Todd
made it. If you are younger than maybe 50 years old, symbols B and I might stump
you, but the rest are still pretty common. Some of the labels (names) presented
in the quiz are a little outdated so I have identified the abbreviations for
you. That will make things much easier. For example, SBS is a silicon
bidirectional switch. Bonne chance...
RF Cascade Workbook is the next phase in the evolution of RF Cafe's long-running
series, RF Cascade Workbook. Chances are you have never used a spreadsheet
quite like this (click
here for screen capture). It is a full-featured RF system cascade parameter
and frequency planner that includes filters and mixers for a mere $45. Built in
MS Excel, using RF Cascade Workbook is a cinch and the format
is entirely customizable. It is significantly easier and faster than using a multi-thousand
dollar simulator when a high level system analysis is all that is needed...
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