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Blogs and Websites and Groups
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Tech Talk on ABC Radio - Israel's use of technology for war - As the world watches tensions and conflicts swell in the Middle East, what stands out is the use of technology in the military.From hacking, to the iron do...
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A Crystal Set with No External Antenna - In the previous post, I described my recent build of a very simple little TRF receiver for the AM broadcast band. It happened as the result of a month or t...
12 hours ago -
One of the Last Places on Earth! - Malden, MA, Cortland St., NYC, Market St., SF, Anaheim, CA, St. Louis, MO and Burbank, CA. These locations share a common bond and that bond is Surplus Ele...
15 hours ago -
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Radio KWID and the War in the Pacific - Many thanks to SWLing Post contributor Jerome van der Linden, who writes: For my bedtime reading I have recently been going through a book (“Radar Yarns”) ...18 hours ago
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HRWB 239 - Radio Mobile Path Prediction Software with Roger Coude VE2DBE - In this episode we meet Roger Coude, VE2DBE, the author of Radio Mobile. This amazing software package allows the user to create a cross sectional plot ...19 hours ago
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Re: VOA Bethany / WLWO / WLW - Quote from: KD6VXI on June 14, 2025, 04:50:19 PM Took the tour of Bethany today. Have tons of pics. Will be uploading g them over the next few days. Here...1 day ago
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A Peaceful POTA Stop at Lake James with the Penntek TR-45L - by Thomas (K4SWL) On Tuesday, May 20, 2025, I was on the final leg of my trip back home from Dayton. After spending some time with my father—who was in the...1 day ago
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New 40 MHz beacon in Croatia - 9A0BEZ - In late May 2025, a new *40 MHz* (8m) beacon in Croatia with the callsign *9A0BEZ* was switched on. The location of the beacon is at Malo Sljeme which is...
3 days ago -
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A 15 (and 10) meter high-pass filter for Field Day - *QRM from a transmitter to receivers on lower bands* A friend of mine belongs to a club in a town north of me and he was describing an issue that they'v...
4 days ago -
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File this under Property Tax Assessment District Ghost Stories - So, this is kinda cool and kinda fun! Found this ghost story all about property taxes, assessment districts, Japan, and AI via Maggie Appleton. Ghost ...
5 days ago -
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AB4WS - Episode 525 - Jack Prindle - AB4WS Jack Prindle AB4WS, had an early interest in AM broadcast radio, evolving to scanner listening to public safety in his n...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...
1 month 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...
1 month ago -
The Communicator May-June 2025 - *Another full issue* Its a big issue, and great articles, along with our regular columnists. Now read in over 165 countries, this issue brings you 120+ pag...
1 month 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...
2 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 ...
4 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...8 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...8 months ago
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Landscapes - %BLOGLNK% Landscapes The post Landscapes appeared first on 28° North Sailing.9 months 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 ...2 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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Digi-chirp! Digital synthesis of ‘nostalgic’ CW - The bottom ends of 80, 40 and 20m are not what they used to be. For starters, the busiest part is the digital segment where computers talk to computers – l...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...5 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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- A Tale of "Ten Minute Transmitters" and "Tuna Tin...
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Radio Inventor Stamps
On Page 39 of the Nov-Dec 2024 SARC newsletter "The Communicator"
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