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Blogs and Websites and Groups
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Trying a $15 70cm transceiver - Peter, VK3YE, recently posted a video of a pair of 433Mhz transceivers he bought at Aldi for $20. They worked OK but had a number of obvious annoying probl...
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Re: Scrapping a Classic - I'm in Oregon but would gladly drive anywhere to save the BC-7. I've been looking for one, or its equivalent for years. W7NGA5 hours ago
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April 24, 2024. Are you Biased? - Shame on you! We are not talking about the criminal trial of a former president nor the situation in the Middle East. The subject is the Bias setting on yo...
17 hours ago -
Scott’s “Fun Harbour-Side POTA” - Many thanks to Scott (VA3EKR) who shares the following field report: Apr. 15, 2024, Great Lakes Waterfront Trail Recreation Site (CA-6003) by Scott (VA3EKR...18 hours ago
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Radio Waves: HEBA Antenna Approval, Eclipse Time Signal Shift, A Novice’s Guide to Amateur Radio Astronomy, and Voyager 1 Sending Data Again! - Radio Waves: Stories Making Waves in the World of Radio Welcome to the SWLing Post’s Radio Waves, a collection of links to interesting stories making wave...19 hours ago
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5000km+ TEP opening on the 432 MHz band in the Indian Ocean - 23rd Apr 2024 - Back on the 8th of April 2024, I reported on the very first Trans-Equatorial Propagation (TEP) opening on the 144 MHz band from UAE to Reunion Island in...
1 day ago -
An improvised intake block off adapter for the Husqvarna 372 XP X-TORQ etc - To perform a vacuum and pressure test of the Husqvarna 372 XP X-TORQ chainsaw engine, the intake needs to be blocked off, and the exhaust blocked off. This...2 days ago
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HRWB 206 - Operating from Challenging Locations with Dr. Charles Powell NK8O - In this episode we meet our good friend, Dr. Charles Powell, NK8O. Charles is medical doctor specializing in neonatal infant care. In addition to his p...1 week ago
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An Inline RF Step Attenuator for QRPp Work - I don’t need to explain the attraction of low power operation; if you’re reading this, the chances are that you are already a convert. I’ve been operating ...
2 weeks ago -
Using an external clock with the RX-888 (Mk2) - *The RX-888 (Mk2) and external clocking* *Figure 1:* The RX-888 with external clock input *(right)* The enable/disable switch is barely visible behind the...
3 weeks ago -
The 50 Ω audio preamplifier that goes after a diode ring product detector in DC receivers - Part 1 - I posted my longest video to date: I'll post a few images from the video in the days ahead. Making such a big video felt pretty exhausting. Best to yo...
1 month ago -
A 51S-1 Restoration Story - I came across my Collins 51S-1 in a big junkyard in Ankara, Turkey around 2012. It was in a pile with a lot of other electronic scrap, probably from one o...2 months ago
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Building Alfred P. Morgan's "A More Selective Crystal Receiver" - As I’ve been seeing a lot of new membership requests on my Facebook Crystal Radio DX group indicating that they wish to build a crystal receiver, I’ve ...
2 months ago -
January 13, 2024. Just Technical Stuff Today. - https://n6qw.blogspot.com Our New Home!3 months ago
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New QRP Cluster Online From OM0ET and OM6APN - By DX EXPLORER DX EXPLORER Paul OM0ET and Peter OM6APN recently launched a new cluster dedicated to QRP operations. Have a look and I hope you will enjoy...5 months ago
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Digital Modes Transceiver - #include #include #include #include #include #include #define ...7 months ago
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QMX multi-band multi-mode transceiver - {gallery}qmx/0{/gallery} QMX: a feature-packed, high performance, 5-BAND 5W, CW and Digi-modes transceiver kit, including embedded SDR, 24-bit 48 ksps...11 months ago
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3D Printing The Hadley 114mm Newtonian Telescope - Yes, we’re building a 3D Printed Newtonian Telescope called Hadley. It’s being printed in PETG and in the video below, I give a quick tour. My build isn’...11 months ago
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3D printed project boxes - I have been busy with some other things that have kept me away from electronics projects for quite a while. Now I can get back to them, but realize I n...
1 year ago -
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 ...1 year ago
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Adding Enclosure to your sBitx Boards Order - The early buyers of the sBitx board set who bought it for $270 USD might want to also add the enclosure (box) for in the kit. What you will now get is a f...1 year 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 bands1 year 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...1 year 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...2 years ago
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A New Look for your uBitx! - Adding a "Cool Blue" Display to your uBitx! The standard "green background" with black lettering frequently reminds me that I suffer from Chronic seasickn...
6 years ago -
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...15 years ago
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E. Howard Armstrong on a Czech Stamp
Blog Archive
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2021
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December
(23)
- Troubleshooting Apollo: 23 MHz Crystals in a NAS...
- McCoy SSB Crystal Filters (1963) -- But Apparentl...
- My Kind of Chip: A Homebrew Discrete 555 Timer Bu...
- How to Fix the Spur Problem in my 17 Meter SSB Tra...
- A Christmas Story: Mike AA1TJ Builds Receiver for...
- A Nice Christmas Gift Out of French Guiana -- The ...
- The (Real) Solar Flare of August 1972 in Cixin Liu...
- On 17 meter CW from Santo Domingo with a uBITX
- Ryan's New Prototyping Board
- The Story of OSCAR 1, The First Ham Satellite
- Hack-a-Day: Has DIY become Click-and-Buy?
- The Lamakaan Annual Radio Convention Starts Today!
- Where is Sunspot Cycle 25?
- Bluetooth, Winston Churchill, The Speed of Light, ...
- Barrie Gilbert and Tinkering, Surplus, and the Vis...
- Junk Box Sideband from the Azores (2004 QST Article)
- Early Radio in New Zealand, and "The Knack"
- Jack NG2E's Winter SOTA Marathon in the Shenandoah
- Dean's Supercharged, 16-Watt, Furlough 2040, Simpl...
- A Great Morning on the Old Military Radio Net: AB...
- Alan Wolke W2AEW: YouTube Silver Play Button Award...
- Peter Parker VK3YE Inducted Into QRP Hall of Fame
- KI4IO in India and Nepal, and Discrete Homebrew Gi...
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December
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