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Blogs and Websites and Groups
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FreeDV Sunday net - 14 stations - The weekly FreeDV net on 40m in South Eastern Australia was excellent this morning despite wet weather here. Mark, VK5QI had planned a balloon launch that ...
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Re: Shelby NC hamfest photos - Aug 28-30, 2025 - Thanks Nick, you always do a great job, documenting the BA's at the festers, which is what I'm mostly interested in. 73 Chuck9 hours ago
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Watch Out: Gift Card Scam Emails Targeting Hams - by Thomas (K4SWL) Lately, I’ve been receiving emails that look like they’re from ham radio friends — complete with their name and callsign in the “from” li...10 hours ago
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Another Productive Day. - Underside Boards Bias Pot Installed! ESP32 Board mounted Vertically, Copper PC Board is a Shield *Installed the W3NQN LPF. TR Relay and Coax Connector...
18 hours ago -
Farewell to The Herculodge - Many of you long-time SWLing Post readers may also be followers of my good friend Jeff McMahon’s blog, The Herculodge. Since 2006, Jeff has been writing th...1 day ago
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Ham Radio Extra Class Practice Test | FCC Element 4 Question Pool 2024–2028 - Extra Class Practice Exam (Stacked Bars with Toggle Groups) Extra Class Practice Exam *Get ready for the FCC Extra Class license exam with this free online...2 days ago
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Ireland's first cubesat EIRSAT-1 comes to end of life... - Back on the 1st of December 2023, Ireland's first satellite called *EIRSAT-1* was launched on a SpaceX Falcon-9 rocket from Vandenberg Space Force Base i...
3 days ago -
The Communicator September - October 2025 - *Back With a Fall Issue* This publication, "The Communicator" from Surrey Amateur Radio Communications (SARC), serves as a bi-monthly electronic periodical...
6 days 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 week ago
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HRWB 244 - A Conversation With Eric 4Z1UG, host of the QSO Today Podcast - In this episode we talk with Eric Guth, 4Z1UG, the host of the popular QSO Today Podcast. Eric has produced over 500 interviews with interesting and inf...1 week ago
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Exploring the Ameco PCL-P Nuvistor cascode preamp/preselector - *"And now, for something completely different!"* This past January - at Quartzfest - there was a table covered with "junque" and taped to it was sign wi...
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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...
4 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...
4 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...
5 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 ...
7 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...10 months 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...11 months 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...3 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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A 2 Transistor Transmitter Powered From a 9V Battery - A couple of days ago I built a simple 2 transistor transmitter on a small piece of PCB material. I used the style of construction that seems to be becoming...14 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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- NYC's Radio Row Survives (sort of) in the Bronx
- Excellent Description of the Electret Microphone
- Dino's FB W1FB Crystal Tester
- And Now For Something Completely Different: 70cm FM
- Have You Ever Seen What's Inside a D-104 Crystal E...
- Stop Me Before I Commit an Electronic Atrocity!
- Steve N8NM Gets Modular -- With Both Hardware and ...
- Another LM373 Rig - Pete Is Not Alone!
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SolderStats
Radio Inventor Stamps
On Page 39 of the Nov-Dec 2024 SARC newsletter "The Communicator"
Absorption refrigerators are still used in motorhomes.
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