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Blogs and Websites and Groups
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Rebuilt the Soldersmoke DC receiver in compact form - Lots of fun and lots to learn from the Soldersmoke Direct Conversion receiver. It seems simple but there are some traps for young players like myself. Bui...
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Re: Puntucation not appearing correctly. - Besides typical computer software, hosting software (the place where the actual web site resides) can be upgraded in a way that conflicts with the web site...7 hours ago
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How hard is it to make the shift to SDR? - It is so obvious that many US hams are there already today. If you are one of the 6% of the US hams with an ICOM IC7300 you are there. Add in the Yaesu and...
12 hours ago -
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New site found for Irish beacon network - March 2025 - A few weeks back, I had a post up about how the *EI1KNH*, *EI0SIX* and *EI4RF* beacons in Ireland had to shut down due to a change of ownership of the be...
21 hours ago -
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Another Look at the BFO from The Progressive Communications Receiver from QST for November 1981 - The Progressive Communications Receiver from November 1981 written by Wes, W7ZOI and John, K5IRK provides 2 of my all-time favorite analog superhet circu...
2 days ago -
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The Communicator March - April 2025 - *Lots happening...* You will find some great articles in this issue, along with our regular columnists. Now read in over 165 countries, this issue brings ...
1 week ago -
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Ali Express "SDR TX/RX Switch" - A design not well thought out... - *Figure 1: * Front panel of the SDR TX/RX antenna switch showing the the 3.5mm audio connectors and the red/green RX/TX LED - which have been swapped to b...
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 ...
1 month ago -
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...
2 months 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...5 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.6 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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“The Rugster” – A Simple 40M DC CW RX Using the NM0S Hi-Per-Mite Filter From 4SQRP - When 4SQRP brought out a version of the David Cripe NM0S-designed Hi-Per-Mite Filter, I noticed that it could be configured to give up to 50dB of gain. Lik...12 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
Blog Archive
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2016
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March
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- From Wayne and Garth in San Diego: EMRFD Joy of O...
- Renewed Hope for Divide by 2 I and Q
- Grayson Evans TA2ZGE on "QSO Today"
- Switching to a Resistive Splitter on the Frankenst...
- KK7B's Thoughts on Notebooks, Experiments, and Bui...
- Be afraid! Be VERY afraid! Digital Audio on 20 M...
- W6JL's Amazing Phasing Station
- Could Grayson's Arduino Thermatron Shield Protect ...
- Winterfest Hamfest with Armand WA1UQO
- Great Video on Mixers
- GREAT Video on Mixers
- KiwiSDR
- QRPi WSPR with a Raspberry Pi Shield from Hungary...
- VA2NM's Michigan Mighty Mite (with Tuna Tin LPF!) ...
- A Great Knack Story: Peter Parker Interviewed on ...
- HEAVY METAL! How to Handle HEAVY Boatanchors -- A...
- Another Lightwave Communication Knack Story from t...
- EMRFD Joy of Oscillation (Part 1)
- OzarkCon is Coming Up -- April 1-2
- Elser-Mathes Cup Opportunity!
- A Knack Victim's Midlife Crisis
- German Mighty Mite works Venice on 40 (video)
- Adafruit Profiled in "The New Yorker"
- "My Favorite Programming Language is Solder" -- Bo...
- AA1TJ -- On the Air with a Tuning Fork Transmitter...
- That Time We Were Re-Transmitted on 487 THz On a R...
- DD4WH's Fantastic Teensy SDR Receiver (Videos)
- From Paul Darlington M0XPD: A Book!
- Radio Row, New York City, 1929
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March
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SolderStats
Radio Inventor Stamps
On Page 39 of the Nov-Dec 2024 SARC newsletter "The Communicator"
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