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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...
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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...3 hours ago
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Dial S for Shortwave - Greetings all SWLing Post community, here’s more about what the Imaginary Stations crew will be sending up to the ionosphere this week. On Saturday 25th Oc...4 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...9 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...
17 hours ago -
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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 ...
2 days ago -
Morse Code Data and Ham Radio - Ever tune across the HF bands and wonder just how many Morse code operators are on the air at that moment? Thanks to WW5TH’s ingenious setup that reads ...2 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...
2 weeks ago -
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...
2 weeks ago -
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...
5 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...
7 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 ...
9 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
Blog Archive
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2020
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March
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- Quarantine Rig: VK3YE Resurrects an Old BITX Project
- Paul VK3HN's Portable Rig
- Excellent Video on Maxwell's Equations
- How They Make Chips That No One Can Understand
- Radio History Question: Why 455 kHz as the IF fre...
- Mr. Carlson Restores an All-American Five -- Triba...
- For Inspiration and Education: Dean's Radio Blog ...
- Technical Manual 11-455 -- Radio Fundamentals -- ...
- These Variable Capacitors Work -- Ether or No Ether!
- COVID-19 -- StayInTheShack ("SITS") -- Our Contri...
- AM Diode Detector + 41 and 49 meter Shortwave Band...
- Will, KF4IZE's Beautiful Boatanchors
- Vernal Equinox Today -- Earliest in 124 Years
- Double Trouble: Notes on TWO Hallicrafters S-38E ...
- Ham Radio -- Practicing Social Distancing for over...
- Words to Live By -- From Allan WA9IRS
- SolderSmoke Podcast #219 SPECIAL CORONA VIRUS C...
- Thoughts on How Hams Can Use the Shortwave Broadca...
- QSO Today Interview with Dale Parfitt W4OP
- The Woz on Technology, Surplus Parts, Intercoms, a...
- The Homebrew Rigs I Worked During the First Day of...
- N2CQR Novice Rig Roundup Station
- Boat Knack -- Rebuilding a 1910 yacht "Tally Ho"
- N3FJZ's Al Fresco. BITX-inspired, TIA. 50 Watt, SS...
- Novice Rig Round-Up -- March 7- March 15, 2020
- KG7TR Describes his Homebrew SSB Rigs (Video)
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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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