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Blogs and Websites and Groups
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Passing Gas! - Yesterday's blog entry had about as much appeal as passing gas in a church service. Today's posting likely would be a "double dose" that includes not only ...
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NM3A’s QMX Backpack Go Kit - Many thanks to Dan (NM3A) who shares the following article about his portable field radio kit which will be featured on our Field Kit Gallery page. If you ...4 hours ago
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Astrad “Mikado” F8-TR17-B205: Mark discovers this USSR radio at his local charity shop - Many thanks to SWLing Post contributor Mark Hirst, who writes: This gem arrived in the charity shop where I volunteer yesterday, a radio made in the USSR (...5 hours ago
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Intel iMac Late 2014 Ubuntu notes - We had an old but beautiful Intel iMac from 2014. It could not be upgraded beyond macOS Big Sur 11.7.10. I used the OpenCore Legacy Patcher and managed to ...
14 hours ago -
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...
21 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 -
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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...3 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...4 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 ...
5 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 -
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
Blog Archive
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2022
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December
(16)
- EI0CL as Heard on a uBITX in the Dominican Republic
- Who was Jean Shepherd?
- Report from the Dominican Republic -- HI7/N2CQR
- WATCH Jean Shepherd in 1982 (with Letterman)
- A Blast from the Past: TR on Homebrewing (sort of)
- Some Direct Conversion Receiver History
- Kludge. Rhymes with Fudge. On PBS!
- Did Marconi Cross the Atlantic with a Coherer? No.
- Faust Gonsett and the SB-33 in 1963
- Save the Antenna!
- R-390s, KWM-2s, Airplanes, and Magnetic Loops -- A...
- Is Envelope Detection a Fable? Or is it Real? Di...
- Cargo Culting, Appliances, and Homebrewing
- SolderSmoke Podcast #242 Mars, New Hams, Direct Co...
- But why? Why Can't I Listen to DSB (or AM) on my ...
- The 40 Meter Direct Conversion Receiver We Have Be...
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December
(16)
SolderStats
Radio Inventor Stamps
On Page 39 of the Nov-Dec 2024 SARC newsletter "The Communicator"
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