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Blogs and Websites and Groups
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Detailed Analysis of the N6QW Delta Loop. - With a great big Thank You to Mike, WN2A, below is an analysis of the N6QW Delta Loop whose existence was born out of necessity. Mike used an Antenna Simul...4 hours ago
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Radio World: John Kean Examines Modern AM Interference Challenges - Many thanks to SWLing Post contributors Dennis Dura and Frank Howell for sharing this article from Radio?World, which examines the persistent and growing p...4 hours ago
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KD9ZAB’s First POTA Activation with the Elecraft KX2 (Fort de Chartres, Illinois) - Many thanks to Adam (KD9ZAB) for sharing the following field report, originally posted on our discussion board, QRPer.net. First POTA Activation with the E...6 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...13 hours ago
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Tech Talk on ABC Radio - Internet outage due to Amazon - Flickr, snapchat, PlayStation and Amazon were among the businesses that suffered an outage due to a failure at Amazon Web Services in the US. What caused t...
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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...1 day 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 ...
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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...
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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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40m Pelican Case SSB Transceiver - See YouTube channels for details: http://www.youtube.com/c/CharlieMorrisZL2CTM *Test code for the LCD and Si5351* #include ...
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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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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 ...
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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"
This kind of "experiments" along with way too many military satellites are the real reason of the global warming issue... along others. I don't know why scientist are that dumb to always believe they can beat mother nature and change and create things as they wish. There will always be a down side to that. I love science... but not when it goes against out planet. This is one example... but there are way too many more. 73
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