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Blogs and Websites and Groups
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VE2DX Electronics closing down - Nov 2025 - Richard, VE2DX operates a small company which designs and sell products for the amateur radio market. These include a variety of interfaces for various r...
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GPT Asks for Help With Its Vision Help - At the moment, I have the experimental, Open AI ChatKit enabled ham radio practice exams flying blind: I'm not passing the figures for exam questions i...4 hours ago
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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...8 hours ago
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VE3MKX’s $5 Flea Market Find: A Camera Case IC-705 POTA Field Kit - Many thanks to Mike (VE3MKX) who shares the following article about his portable field radio kit which will be featured on our Field Kit Gallery page. If y...9 hours ago
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Michael Reviews the Choyong WT2 Multifunction Handheld Radio - Many thanks to SWLing Post contributor, Michael (BD4AAQ) who shares the following guest post: WT2 Mini Handheld With Everything Radio by Michael Ye (BD4AAQ...10 hours 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...
17 hours 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...1 day 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...2 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 ...
3 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...
1 month ago -
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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...
5 months ago -
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
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SolderStats
Radio Inventor Stamps
On Page 39 of the Nov-Dec 2024 SARC newsletter "The Communicator"
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