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Homepage Archive - May 2026 (page 1)

See Page 1 | 2 of the May 2026 homepage archives.

Friday the 8th

Thursday the 7th

Wednesday the 6th

Tuesday the 5th

Monday the 4th

Friday the 1st

Electronics-Themed Comics: Short Circuits

Electronics-Themed Comics: Short Circuits - RF CafeIn 1961, when these tech-themed comics appeared in Electronics Illustrated magazine, the "Space Race" was in full swing. That, along with home hi-fi stereo equipment, newfangled color televisions, and - gasp - transistors, filled the headlines. They were also the subject of many forms of humor. These four comics touch on many of those aspects, all centered on the Space Race. Of course, everything is noticeably dated. "Flunking the code test" means not much to Amateur radio licensees who earned their first license (like me, in 2010) after the 5 WPM Morse code requirement was removed. Building something in "kit form" was a good way to save some money and learn something...

Mac's Radio Service Shop: Service Bench Chatter

Mac's Radio Service Shop: Service Bench Chatter, October 1951 Radio & Television News - RF CafeIn our present "No user serviceable parts inside" world of electronic products, it is easy to understand why very few people have an appreciation for the technical prowess needed to troubleshoot and repair them. When reading through these episodes of "Mac's Radio Service Shop" that appeared in mid last century editions of Radio & Television News magazine, I am inspired to envy the skills that small electronics repair shop owners had for working on the old vacuum tube based radio and television sets. Digital electronics has its own unique set of quirks and special knowledge requirements to troubleshoot, but when everything is analog rather than merely being required to be a "0" or a "1"...

FCC Seeks College Grads for Honors Program

FCC Seeks College Grads for Honors Program - RF Cafe"The U.S. Federal Communications Commission (FCC) has announced that it is once again accepting applications for its Honors Engineer Program. Initiated in 2018, the one-year development program gives selected candidates an opportunity to work with FCC personnel on innovative issues in the communications and high-tech arenas, including 5G communications technology, the national deployment of broadband services, and communications technologies intended to improve access to those with disabilities. Those selected to participate in the Honors Engineer Program will be eligible for continued employment at the agency. Application to the FCC's Honors Engineer Program is open to recent college graduates with an engineering degree..."

Amateur Radio Crossword Puzzle

Amateur Radio Crossword Puzzle for February 21, 2016 - RF CafeThis week's crossword puzzle theme is Amateur Radio. All RF Cafe crossword puzzles are custom made by me, Kirt Blattenberger, and have only words and clues related to RF, microwave, and mm-wave engineering, optics, amateur radio, mathematics, chemistry, physics, and other technical subjects. As always, this crossword puzzle 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...

Submarines - Are We Open to Sneak Attack?

Submarines - Are We Open to Sneak Attack?, February 1956 Popular Electronics - RF CafeSubmarines first proved their deadly capabilities during World War II when Adolph Hitler's navy used them to torpedo not just military ships but merchant ships in commercial trade routes between the Americas and Europe. Hideki Tojo's navy used subs to conduct surveillance prior to the deadly surprise attack on Pearl Harbor. Their naturally stealthy environment - underwater - proved to be a difficult realm both for detection and for attack. Fortunately, sensor technology developed quickly during the war, and soon a combination of air and sea based methods were in use and proved very effective. Submariners no longer sailed in relative security from being treated to a violent, icy burial at sea...

Thanks to PCB Directory for Continued Support!

PCB  Directory - RF CafeThe leading website for the PCB industry. PCB Directory is the largest directory of Printed Circuit Board (PCB) Manufacturers, Assembly houses, and Design Services on the Internet. We have listed the leading printed circuit board manufacturers around the world and made them searchable by their capabilities - Number of laminates used, Board thicknesses supported, Number of layers supported, Types of substrates (FR-4, Rogers, flexible, rigid), Geographical location (U.S., China), kinds of services (manufacturing, fabrication, assembly, prototype), and more. Fast turn-around on quotations for PCB fabrication and assembly.

Thanks Once Again to everythingRF for Long-Time Support!

everything RF Searchable Database - RF CafePlease take a few moments to visit the everythingRF website to see how they can assist you with your project. everythingRF is a product discovery platform for RF and microwave products and services. They currently have 354,801 products from more than 2478 companies across 485 categories in their database and enable engineers to search for them using their customized parametric search tool. Amplifiers, test equipment, power couplers and dividers, coaxial connectors, waveguide, antennas, filters, mixers, power supplies, and everything else. Please visit everythingRF today to see how they can help you.

Many Thanks to Exodus Advanced Communications for Their Support

Exodus Advanced Communications - RF CafeExodus Advanced Communications is a multinational RF communication equipment and engineering service company serving both commercial and government entities and their affiliates worldwide. Power amplifiers ranging from 10 kHz to 51 GHz with various output power levels and noise figure ranges, we fully support custom designs and manufacturing requirements for both small and large volume levels. decades of combined experience in the RF field for numerous applications including military jamming, communications, radar, EMI/EMC and various commercial projects with all designing and manufacturing of our HPA, MPA, and LNA products in-house.

Thanks Again for Windfreak Technologies' Continued Support!

Windfreak TechnologiesWindfreak 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, and a 15-band programmable filter (5 MHz-8 GHz). Since the conception of WFT, we have introduced products that have been purchased by a wide range of customers, from hobbyists to education facilities to government agencies. Worldwide customers include Europe, Australia, and Asia. Please contact Windfreak today to learn how they might help you with your current project.

Atomic Chains Measure Quantum E-Fields

Atomic Chains Turn Electric Fields into Measurable Quantum Signals - RF Cafe"Measuring low-frequency electric fields with high precision remains a significant challenge. Existing sensing technologies often cannot deliver traceability, compact design, and the ability to detect field direction all in one system. Rydberg atoms are gaining attention in electric-field quantum metrology because they have large electric dipole moments and their behavior can be tied to well-defined atomic properties. Most current methods for detecting low-frequency or DC electric fields using Rydberg atoms rely on vapor-cell electromagnetically induced transparency (EIT) spectroscopy. However, this technique is limited..."

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2016 March - 1

 


These archive pages are provided in order to make it easier for you to find items that you remember seeing on the RF Cafe homepage. Of course probably the easiest way to find anything on the website is to use the "Search RF Cafe" box at the top of every page. Some quoted items have been shortened to save space. About RF Cafe.

Homepage Archive Pages

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2012:  1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 (no archives before 2012)

- Christmas-themed items

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Innovative Power Products (IPP) Directional Couplers - RF Cafe

Anatech Electronics RF & Microwave Filters - RF Cafe