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Blogs and Websites and Groups
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Free AI-Tutor-Enabled Extra Class Practice Exams Now Live on Project TouCans! - [image: Cartoon OctoToucan mascot with bright blue feathers, orange beak, and pink octopus tentacles wearing mechanical goggles beside bold text reading...
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Finding My POTA Bug Fist: A Field Test of the WB9CYY Bug Emulator at Clemmons ESF! - On Wednesday, October 15, 2025, I was in Raleigh, North Carolina, spending the rest of the week with my wife and daughters during my daughter’s fall break ...6 hours ago
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Algeria on Shortwave – Then and Now - Many thanks to SWLing Post contributor Dan Greenall, for sharing the following guest post: Algeria on Shortwave – Then and Now by Dan Greenall In the early...7 hours ago
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VE2DX Electronics closing down - Nov 2025 - Richard, VE2DX operates a small company in Canada which designs and sell products for the amateur radio market. These include a variety of interfaces for...
1 day ago -
A Time for Introspection? - At times it is really good to look inward and ask some of the hard questions. You know, like should I build yet another radio or for many hams do I need to...1 day ago
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Kanga pocket transmatch - goes up to 12 - To go with my fantastic QMX portable radio (now with SSB) I wanted a compact antenna tuner and so ordered the Kanga pocket transmatch. It's actually a Z-ma...
1 day ago -
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Re: Penicillin - Quote from: WA4WAX on October 20, 2025, 10:46:02 PM Walt often spoke of G H Brown. brown was a big influence for him Yes, George H Brown, and Harry F. Olso...2 days ago
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HRWB 248 - Polar Modulation with Tony K1KP - In this episode we meet Tony, K1KP, the developer of polar modulation that is being used in the new Flex Radio Aurora radio. Polar modulation is a techn...3 days ago
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A Daily-Use Vintage High Impedance Headset - I’m not a collector of vintage headsets. 2 years ago, I purchased a high impedance Western Electric headset for listening to crystal sets. I also bought a ...
4 days ago -
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It's our 50th Anniversary! - Commemorative VHF Net check-in Tuesday 7 October at 8 pm (PST) SARC will be hosting its usual net at 8 pm (Pacific time) on Tuesday, October 7 on frequency...
2 weeks ago -
DXing distant SolarEdge PV optimizer modules (or long-distance propagation of PV system QRM) - From how far away can you hear the spurious emissions from a known-noisy PV system? *Quite a racket!* *Figure 1:* The spectrum of a SolarEdge PV system...
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W1WEF - Episode 530 - Jack Schuster - W1WEF In this episode of QSO Today, we sit down with Jack Schuster, W1WEF, whose amateur radio journey spans more than 73 yea...1 month ago
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The "George Batterson 1935 CW QSO Party" - Summary - The first *George Batterson CW QSO Party* has concluded and the results are in! The "*GB*" was introduced to honor George Batterson (W2GB), who along wi...
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KK4DAS MB 20 Transceiver Complete - The MB 20 transceiver is now complete. The rig is a homebrew 10-watt 20-meter SSB transceiver. The VFO module was an ebay purchase of a salvaged Yeasu...
5 months ago -
A Curious 9 MHz Crystal from Mouser Electronics - Just a quick post to share info about a good 9 MHz crystal sold by Mouser Electronics. I last purchased batches of crystals for xtal IF filters back in 2...
7 months ago -
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40m Pelican Case SSB Transceiver - See YouTube channels for details: http://www.youtube.com/c/CharlieMorrisZL2CTM *Test code for the LCD and Si5351* #include ...
9 months ago -
Hollow-State Design, 3rd Edition - Hollow-State Design, 3rd Edition is available from: Lulu Press: tinyurl.com/hollowstatedesign3 eBay: search for “hollow-state design” Electric Radio bookst...1 year ago
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I Finally Bought My Dream Airplane - Aviation has been a love of mine since I was a very little person. Living in Nevada, seeing posters and ads for the Reno Air Races, specifically the Texa...1 year ago
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Landscapes - %BLOGLNK% Landscapes The post Landscapes appeared first on 28° North Sailing.1 year ago
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Daylight Again – An all Analog Radio - What’s all this? In 10 seconds, A high performance, 7MHz, 5 watt SSB rig Draws just 24 mA of current 90 dB dynamic range, 80 dB close-in dynamic range 3D ...3 years ago
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New post: A “Walkie-Talkie” SSB transceiver for 14MHz or the higher RF bands - To access this article, please click link: A “Walkie-Talkie” SSB transceiver for 14MHz or higher rf bands3 years ago
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Other Electronic Projects • Re: Can I normalize both Mono Amp Outputs? - radm49 wrote: ↑ Mon Apr 25, 2022 3:56 am qmavam wrote: ↑ Thu Apr 21, 2022 8:57 pm Yes, you can use a wall wart for power, you might need to add a capacit...3 years ago
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A battery powered 50W 160m AM transceiver for your backpack - This project is a compact 160m AM transceiver capable of up to 50 watts of fuly modulated carrier, designed for portable use. The transmitter portion uses...4 years ago
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Modifications to the Dayton/FDIM-2019 Antuino - The Dayton Antuino has sub-optimal performance. This is a short note on improving it to an 80 db range of measurements. The trouble with Antuino 2.0 (the o...6 years ago
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Raduino as NBFM TX - Here is a neat, 30 minute hack for your Raduino to turn the Si5351 into a pretty stable, solid NBFM transmitter. The hack is to add a varactor diode in ...
7 years ago -
QRP Labs shop! - [image: Shop] All QRP Labs kits may be ordered online securely at the shop, with PayPal payment. *Click here to visit the shop!* *Click!* *Shop! Order...10 years ago
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Hans Summers Homebrew Radio, Electronics and Computing - Radio, Electronics and Computing Projects by Hans Summers I make no claims for technical accuracy, good design, or necessarily even originality for the co...16 years ago
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E. Howard Armstrong on a Czech Stamp
Blog Archive
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2015
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September
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- Alan Wolke in the Dinosaur Den (Video)
- Jac's Homebrew Receiver (video)
- First Ever SSB Homebrew to Homebrew Contact by N2C...
- Listen to Pete Juliano's Interview on "QSO Today"
- Pete Experiences the Joy of Rotation
- Civility, Ham Radio, King Hussein, and the Interna...
- Mighty Mite with Homebrew Capacitor Made from Two ...
- Listening to Chinese Satellites with my Drake 2-B
- China Puts NINE Amateur Satellites in Orbit
- SolderSmoke Podcast #180 Pete's Beam, Simple-ceiv...
- Visualizing Harmonics and Square Waves
- AA7EE's Beautiful Sproutie MK II
- Alan Re-Caps His Drake 2-B
- Inspiring Stuff on "QSO Today"
- Claude Shannon had The Knack (video)
- Kids Homebrewing in Japan in the 1920s
- Kon-Tiki and the Gibson Girl
- Speaking of Breadboards...
- Si5351 and the Spectral Purity Mask
- Alan Wolke's Drake 2-B (video)
- SolderSmoke Book Now Free on Amazon Kindle
- Breadboarding and Mountaintopping
- Five Lessons from Pluto for Homebrewers
- Interview with Paul Horowitz (W1HFA) -- A Giant In...
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September
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SolderStats
Radio Inventor Stamps
On Page 39 of the Nov-Dec 2024 SARC newsletter "The Communicator"
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