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Blogs and Websites and Groups
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40 MHz reception report from Bill Smith, W1-7897 for April 2024 - Thanks to short wave listener *Bill Smith, W1-7897* for sending on his reception report for April 2024. Bill who is located near Douglas in Massachusetts...
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Re: NEAR-Fest - The Inside Story! - Enjoy your reward, Mr. Mike; it's very well deserved. It was great seeing you making the rounds at Nearfest looking relaxed and worry-free for a change. ...4 hours ago
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May 1, 2024. More output from your IRF510! - Every time I think or mention Mary Jo, somehow the 57 VW Beetle comes to mind. So, it is with the IRF510 and homebrew QRP rigs. They indeed are found frequ...
9 hours ago -
Change Is Good - by Matt (W6CSN) Recently, OM Witherspoon (K4SWL) wrote a blog here and shared a POTA activation video in which he described the benefit of changing up your...10 hours ago
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Frans puts his new KiwiSDR2 on the air and online - Many thanks to SWLing Post contributor, Frans Goddijn, who writes: Dear Thomas, Last week I bought & installed the new KiwiSDR receiver and shared it on th...11 hours ago
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Simple End Fed Half Wave antenna for 40, 20, 10m using Jaycar toroid - Just for fun, using parts already in hand, I've built a portable half wave end fed antenna that is resonant within each of the 40, 20 and 10m bands. It's b...
15 hours ago -
Analysis of interference from a SolarEdge PV (solar) electric system. - *Comment:* This article - while it centers about the investigation of a SolarEdge PV *(PhotoVoltaic)* system - the discussions of techniques and strategi...
17 hours ago -
SimNEC and SimSmith graphs and models in blog articles on owenduffy.net - To write articles that better suit readers of this blog, it would be helpful to me if you would take this 1 minute survey. Create your own user feedback su...18 hours ago
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HRWB 207 - Coaxial Stub Filters and Portable Operating with Daniel WV1T - In this episode we meet Daniel Winn, WV1T, a very active portable ham radio opertor. Daniel was searching for a way to filter out strong local signals w...1 day 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 ...
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...
2 months 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...6 months ago
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Digital Modes Transceiver - #include #include #include #include #include #include #define ...8 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...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...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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2023
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February
(21)
- A Couple of New Digital Multimeters: a Fluke and a...
- First QSO with the High-School Receiver -- 100 mW ...
- Video by KK4DAS on Progress in High-School Direct ...
- Progress Report: High-School Students Build Diode...
- Early (1912?) Ham Station
- The Transistor at 75, and the Raytheon CK722 (Pete...
- Is this the Origin of the Term "Ham" Radio?
- Farhan's Direct Conversion Receiver
- Antoine's Home Lab in Paris
- Progress Report: High-School Students Melt Solder ...
- Ham Radio Pico Balloons Feared Shot Down by USAF
- The Infinite Impedance Envelope Detector (done wit...
- Mr. Carlson Replaces Old Capacitors -- Bathtub Cap...
- SolderSmoke Podcast #243 -- HI7/N2CQR, uBITX mods ...
- VK2BLQ Builds the High-School Direct Conversion Re...
- Rick N3FJZ Completes Build of High-School Direct C...
- To Re-Cap or Not to Re-Cap -- Curious Marc on the ...
- CuriousMarc (AJ6JV) Goes to a Hamfest
- Checking Into the Vienna Wireless Pow-Wow Net afte...
- Direct Conversion Receiver Bandscan -- 40 Meters e...
- Hammarlund HQ-100 Misidentified in 1963 FCC Film
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▼
February
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