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"Einstein did his best stuff when he was working as a patent clerk!" - Dr. Peter Venkman

Today in History

Is Amateur Radio Still a Gateway to EE?

Is Amateur Radio Still a Gateway to Electrical Engineering? (Dan Romanchik) - RF CafeMany thanks to author and amateur radio operator Dan Romanchik (KB6NU) who sent this article for posting here on RF Cafe. A lot of electrical engineers and hobbyists are familiar with Mr. Romanchik from his stint as Senior Technical Editor for Test&Measurement World magazine (now part of EDN), and by his popular books on preparing for taking and passing Amateur Radio exams- including the newly released "No-Nonsense General Class License Study Guide." Contained within are Dan's observations regarding how Amateur Radio seems to be making a comeback in many realms including colleges, the popularity of radio displays in museums, and a rising number of 'hackers/makers' who are exploring the

U.S.A. Calling

U.S.A. Calling, January 1942 QST - RF CafeToday is Memorial Day in America. When America was drawn into World War II after the attack on Pearl Harbor on December 7, 1941, the country snapped into action and our citizens were ready, willing, and able to help. One big immediate need was knowledgeable electronics technicians and engineers, particularly people with experience in radio communications. Amateur radio operators were the natural reserve source for just that need. The FCC shut down Ham radio transmissions in January 1942 ostensibly for security reasons, but some suspect the reason was at least partly to motivate Hams to enter the armed services or work at government research laboratories. Still feeling

RF Cable Assembly Designer by Pasternack

RF Cable Assembly Designer Unveiled by Pasternack - RF CafePasternack Enterprises has just released their newest engineering resource called the Cable Assembly Designer which allows the user to design and customize RF cable assemblies with an easy-to-use online web application at Pasternack’s new custom cable designer enables engineers and buyers to create customized RF cable assemblies that meet their specifications from any combination of compatible connectors and cables offered by the company. Over 250,000 possible combinations

Sound Broadcasting from Airplanes

Sound Broadcasting from Airplanes, September 1947 Radio News - RF CafeUntil maybe 20 to 30 years ago, there was still a certain amount of awe associated with new applications of technology. It seems anymore people are so accustomed to new and amazing things - usually at affordable prices - that the wonder is gone. Advancements are expected. The world is moving so fast that it is difficult to absorb and fully appreciate all the work being done. In 1947, both airplanes and electronics were still relatively new to a lot of people, especially in more rural areas, so a whiz-bang scheme like broadcasting messages from an airplane was

MECA Announces RF Parts On Demand (RFPOD)

MECA Announces RF Parts On Demand (RFPOD)MECA Electronics announces our expedited online service center, the source for RF Parts on Demand (RFPOD) when you need them. RFPOD offers an expedited online service that process your order and has it available for pick up at will call or shipment within 2 hours from order placement to pick up time! Will Call pick up hours are 9:00 AM to 5 PM (ET) - earlier hours are available by calling customer service in advance at (973) 625-0661. Let us help solve your component problem, we are here when you need us, orders are accepted 24 hours a day, 7 days a week and shipments are made same or next business day

Money in Radio Gadgets

Money in Radio Gadgets, February 1933 Radio-Craft - RF CafeSubstitute "cellphone" for "radio" in this title and editorial by Hugo Gernsback in 1933 and it would fit right in with today's market of wondrous gadgetry. Prescient as always, Mr. Gernsback describes, among other things, what we now refer to as energy harnessing to power ancillary devices and props. He also recommends a scheme for causing 'dancing dolls' on the surface of a table vibrated and mobilized by the sonic waves of a large speaker - a lot like the way years later vibrating football games were made (remember them?) where the men danced randomly

Nokomis Needs Engineers & Scientists

Nokomis Is Seeking Outstanding PhD and MS Level Electrical Engineers, Physicists and Computer Scientists - RF CafeThis is a good week for engineer job openings. Nokomis is seeking outstanding PhD and MS level electrical engineers, physicists and computer scientists position will support design and enhancement of next-generation RF/microwave devices. 3-10 years' experience is required depending on the position. Military background is a plus. Experience should include RF/microwave design and/or measurement with a focus on RF sensor systems and signal analysis. Experience with receivers, transmitters, and transceivers is a plus. Test and measurement experience as well as filter design

Acoustics Anagram

Acoustics Anagram, October 1961 Electronics World - RF CafeIsn't an anagram a word game where letters of one word are rearranged to spell another word or series of words? For instance, an anagram for 'microwave' is 'warm voice,' one for ''resistance" is "ancestries," and for "vector" is "covert." If so, then this puzzle is misnamed; it is really a crossword puzzle. Maybe back in 1961 the word anagram included this type of puzzle. Regardless of the naming error, I did learn a new word: "inertance," which means "the effect of inertia in an acoustic system, an impeding of the transmission of sound through

R&S Phase Noise Analyzer and VCO Tester

Rohde & Schwarz Presents the Ultrasensitive R&S FSWP Phase Noise Analyzer and VCO Tester - RF CafeThe new phase noise analyzer and VCO tester from Rohde & Schwarz enables ultrasensitive and ultra-fast phase noise measurements. The R&S FSWP also allows users to very easily measure pulsed sources and residual phase noise of RF components. Plus the instrument can be upgraded to a signal and spectrum analyzer. With the new R&S FSWP phase noise tester, users can measure the spectral purity of signal sources such as generators, synthesizers and VCOs more quickly than with any

NuWaves Needs RF Engineers

NuWaves Engineering Seeks an Engineering Manager - RF CafeNuWaves Engineering, a premier supplier of RF systems, RF products, and engineering design services, is actively seeking talented and highly motivated RF Design Engineers with 4 plus years of experience in RF system and/or circuit design to support engineering development. NuWaves is a fast growing RF Design Engineering firm located in Middletown Ohio – North of Cincinnati and South of Dayton. Individuals must have knowledge of RF systems and circuit design. Experience with PLLs, LNAs, PAs, demodulators, modulators and other communication circuitry is essential 

Tech Headline News

FCC Eliminates Vanity Call Sign Registration Fee - RF Cafe FCC Eliminates Amateur Radio Vanity Call Sign Regulatory Fee

'A Beautiful Mind' Mathematician John Nash & Wife Killed in Car Crash (movie w/Russell Crowe)

Working to Death in Japan

Nanowire Transistors Favourite to Succeed FinFETs

European Regulators Tackle Facebook over Privacy

Supermarket LED Lights Talk to Smartphone App

Each Job in Wireless Tech Supports More Than 6 Jobs Elsewhere (and probably 3 non-working people)

Smart Factories Meet AI

Worldwide IoT Market Growth to Be Led by Digital Signage

Premium Phone Costs 'Will Fall on Bill Changes'

High Schooler Allegedly Hired 3rd Party to DDoS His School District

Microsoft's HoloLens Will Put Realistic 3-D People in Your Living Room

- More Headlines -

Lake Chevrolet Business Card in 1934 Radio-Craft

Lake Chevrolet Business Card Found in 1934 Radio-Craft - RF CafeWhilst perusing the June 1934 edition of Radio-Craft magazine, I found betwixt the pages this business card from the Lake Chevrolet Company, of Devils Lake, North Dakota. As you can tell by the old panel truck on it, the year it was printed was probably sometime around 1934. While this business card does not have the value of a 1900s era blue chip stock certificate I keep hoping to find, it does have historic and nostalgic value - at least to me as an appreciator of the people and institutions that built America. The handwriting on the back of the card says, "Delivery 577. Cab box chassey[sic]," and "Let me know at least 3 weeks ahead." Although you cannot tell

NuWaves Seeking an Engineering Manager

NuWaves Engineering Seeks an Engineering Manager - RF CafeNuWaves Engineering, a premier supplier of RF systems, RF products, and engineering design services, is actively seeking talented and highly motivated Engineering Manager. Reporting to the CTO, the Engineering Manager directs the implementation of various strategic and tactical operations by performing the following duties either personally or through direct reports. Essential functions include: • Write and present proposals, reports and related findings • Participate in development and deployment of NuWaves' mission and business strategies • Perform RF Design • Responsible for leading and supervising design engineers as they

NuWaves Wins SBIR Phase II Contract for C-Band PA

NuWaves Wins NASA SBIR Phase II Contract for C-Band PA Development and Prototyping - RF CafeNuWaves Engineering, an international RF and microwave solutions provider, announced today that the company has been awarded a Phase II Small Business Innovation Research (SBIR) contract from the National Aeronautics and Space Administration (NASA) to develop and prototype a miniature linear and high-efficiency C-band power amplifier to provide communication range extension for a variety of NASA missions and applications, including Unmanned Aircraft Systems (UAS) integration into the National Airspace System (NAS). Under the terms of the contract, NuWaves will,

A Passive RF Limiter

A Passive RF Limiter, December 1966 QST Article - RF CafeThis passive RF limiter is a simple combination of cascaded "T" type resistive attenuators that are switched in and out of the circuit based on the power level in the line. The design takes a bit of thinking due to needing to retain a reasonable impedance match at the input and output throughout various stages' conduction states. Arriving at an optimal value for resistors would require a circuit simulator with a mathematically based optimizer, but, especially for amateur radio work, close is good enough. That is not to say Hams are a bunch of slackers - they're not - it's just that component and software resources are not as readily available (aka 'prohibitively expensive') for doing the analysis and testing. In 1966 when

No-Nonsense General Class License Study Guide

No-Nonsense General Class License Study Guide - RF CafeDan Romanchik (KB6NU), author and instructor on all things Ham radio, has just released his latest Amateur Radio exam book titled "No-Nonsense General Class License Study Guide: (for tests give between July 2015 and June 2019). The new question pool takes effect on July 1st of this year and lasts for four years. It is available in both paperback and Kindle formats. Hopefully, Dan (read his blog) has plans to release a new version for his Amateur Extra study guide for the new question pool in 2016, for which I'll be studying. See the formal press release.

Copper Mountain Debuts New High-Performance VNAs

Copper Mountain Technologies Debuts New High-Performance VNAs - RF CafeCopper Mountain Technologies (CMT) introduced a new series of high-performance vector network analyzers (VNAs) designed to efficiently handle advanced test applications at the 2015 International Microwave Symposium (IMS) in Phoenix on May 17-22. The Cobalt series, which presently features the C1220 and C1209 models, offers an unmatched price-performance combination for S-parameter measurement between 100 kHz and 20 GHz. To achieve high performance and an affordable cost, the design and production of Cobalt VNAs incorporates several

Dr. Peter Venkman Quote on Einstein

Dr. Peter Venkman: Ghostbusers(tm) - RF Cafe"You're always so concerned about your reputation. Einstein did his best stuff when he was working as a patent clerk!" - Dr. Peter Venkman, Ghostbusters


2015 College Majors with the Highest Starting Salaries

2015 College Majors with the Highest Starting Salaries: Forbes - RF CafeForbes just published its newest list showing which college majors currently enjoy the highest starting salaries. Engineering and architecture top the list at $50k US, while computers and mathematics follow closely. Next comes health fields and then business. The physical sciences fare worse than social sciences, which I find disturbing. For comparison, workers with only a high school education average $22k US. What is not mentioned, but probably implied, is whether pay for those with only a high school diploma is for right out of school or four years later when the college graduate would begin his/her career. That might be a more fair 

Author: Kirt Blattenberger on Google+ Author:
Kirt Blattenberger