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Blogs and Websites and Groups
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Something Old Something New... - *LA6NCA* So what do you do when you have a case of 12A6 vacuum tubes (over 200 of them). You mate one of them with an Arduino and Si5351 to build an...
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NM3A’s LA Go Kit – A Complete (tr)uSDX Station in a Toiletry Bag - 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 ...2 hours ago
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An excellent end fed unun from bh7jyr - It's been very windy here and I worry that my main dipole for 40m might come down so as a backup I recently purchased a 1:64 unun for an end fed antenna fr...
7 hours ago -
For Part 15 Enthusiasts – Some Very Worthy SSTRAN AMT3000 and AMT5000 Mods - Back in 2010, I became interested in legal micropower broadcasting under the FCC Part 15 regulations, and assembled an SSTRAN AMT3000 kit transmitter for t...
17 hours ago -
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The 90 metre band – Then and Now - Many thanks to SWLing Post contributor Dan Greenall, who shares the following guest post: The 90 metre band – Then and Now by Dan Greenall A few decades ag...1 day ago
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AM Broadcast model choices - If...you only had room for one or two, full size vintage real radio station +/- 1000 watt AM transmitters for 160/80mtrs. ....such as vintage RCA, Westingho...3 days ago
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OpenAI Apps SDK and ChatGPT Integration: Building the Ham Radio Practice Exam at Project TouCans - Everything’s moving fast in AI again! Yesterday, OpenAI announced the ChatGPT Apps SDK, a framework that lets developers build full-featured web apps r...5 days ago
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Video: Understanding 6 Meter Sporadic E Propagation by W3LPL - Frank Donovan, W3LPL gave a presentation recently to the Madison DX Club titled '*Understanding 6 Meter Sporadic E Propagation*'. The talk which is about...
5 days ago -
HRWB 247 - Setting Up A Large Scale Field Day with Keith Elliott W6KME - In this episode we meet Keith Elliott, W6KME, from the Conejo Valley Amateur Radio Club. Keith has been ordanizing the club's Field Day event for the pa...6 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...
6 days ago -
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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...
4 weeks 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...
6 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 ...
8 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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- So Where is My Dominican Antipode?
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Radio Inventor Stamps
On Page 39 of the Nov-Dec 2024 SARC newsletter "The Communicator"
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