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Blogs and Websites and Groups
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talkSPORT in the UK to close 7 AM transmitters on the Medium Wave band - It was recently announced that OFCOM, the UK regulator has given permission to *talkSPORT* to close down 7 of its 18 AM transmitters on the Medium Wave b...
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Re: Got The Urge To Work Some Aurora - I remember struggling to make a 6 M Euro contact during the 70s cycle. Swan 250 C second hand. some CW and surpress that carrier for SSB. Still have the...5 hours ago
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Send Me the Code! - My time is limited these days as I write this at 4AM. I often get emails, and I really try hard to be responsive for requests for information. In one email ...
18 hours ago -
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Joined two 80m nets with the double sideband transmitter - Great fun tonight. First I joined the Tasmanian tech net with the double sideband transmitter and later the Macedon Ranges net. Good reports from both. It'...
2 days ago -
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Ali Express "SDR TX/RX Switch" - A design not well thought out... - *Figure 1: * Front panel of the SDR switch showing the 3.5mm audio connectors and the red/green RX/TX LED - which have been swapped to be in their proper ...
5 days ago -
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Op-ed. Having fun and receiver performance are not always related -- The fate of analog-biased home brew radio -- - I'm only guessing the date, but perhaps, sometime in the 1970s -- a portion of home brew and certainly the professional amateur radio industry pursued...6 days ago
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Special Event Station PA80OV - *Radio Club Limburg* *announces* *Special Event Station * *PA80OV* Next week, members of Radio Club Limburg (https://rclb.nl) in the North Limburg r...
2 weeks 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 weeks ago -
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Finding Your Best Crystal Radio 'DX Diode' (Part 2) - Readers may recall my summertime blog, "*Finding Your Best Crystal Radio ‘DX Diode'*". It described a theoretical method I tried in order to see which o...
1 month ago -
WA2JMG - Episode 524 - Charles “Pete” Corp - WA2JMG Charles “Pete” Corp, WA2JMG, operates simple rigs into wire antennas, using low power. His primary operating mo...3 months ago
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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...4 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...4 months ago
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2000 47pF Caps ... - An unexpectged package arrive in the mail today. Did you ever wonder what 2000 47pF NP0 capacitors look like? Thanks to John, AB2XT I will never run ...
5 months ago -
Landscapes - %BLOGLNK% Landscapes The post Landscapes appeared first on 28° North Sailing.5 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 bands2 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...2 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...9 years ago
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Baby Steps at AA7EE - No major moves forward at the AA7EE shack recently, just a few little ones. I’ve been eyeing a fairly tall tree (50-60 feet) that is right at the edge of t...15 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...15 years ago
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E. Howard Armstrong on a Czech Stamp
Blog Archive
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July
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- LightSail 2 Rides to a Higher Orbit, Propelled by ...
- Pete N6QW's Three Dozen (AT LEAST THREE DOZEN!) Ho...
- N8NM's Homebrew Stereo
- Walter KA4KXX Operates his FB Al-Fresco HB Scratch...
- Fish Soup 10 QRP Transceiver in Action on 40
- Drake 2-B "The most talked about HAM RECEIVER"
- Light Sail 2 Successfully Deploys Its Solar Sail
- Making Fish Soup from Herring and Tuna (How to Bui...
- A Frequency Readout for the Fish Soup 10 (with coo...
- From Bill's Apollo 11 Scrapbook
- Video of Fish Soup 10 QSO (from N3MLB)
- The "Fish Soup 10" Homebrew QRP CW Transceiver
- Feedback on QSOs -- Listeners are Listening
- N6QW goes Coast-to-Coast with HB SDR RADIG
- Chinese Micro-Satellite Photographs Eclipse -- FRO...
- The Fish Soup 7 QRP Rig -- On the Air on 40 Meters...
- Homebrew RF Design Contest -- Win $3,000!
- Building Spark-Gap Transmitters -- And a Very Cool...
- LightSail 2 -- Solar Sailing Cubesat with a Beacon...
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July
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SolderStats
Radio Inventor Stamps
On Page 39 of the Nov-Dec 2024 SARC newsletter "The Communicator"
Ignoring the competition, those MRF101AN are exceptionally good on paper. Only $20 each, actually available in reasonable quantities, can kick out 100W, can survive a 65:1 mismatch, 21dB power gain (1W in 115W out), the tab is the source pin.
ReplyDeleteAdd a cheap SMPS module to get 48V out and you have a whole world of possibilities opening up for not much money.