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Blogs and Websites and Groups
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HF FM transmitter with Franklin oscillator - Recently I've been working on an AM transmitter for 40m. It occurred to me that FM should be much simpler to produce. I had ordered some varactor diodes re...
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Trans-Atlantic opening on the 50 MHz band - 31st Oct 2024 - Now that we're at or near the peak of the sunspot cycle, there are plenty of reports on the *50 MHz* (6m) amateur radio band. While north-side openings a...
3 hours ago -
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Carlos’ Illustrated Radio Listening Report and Recording of Radio Nacional de España (October 30, 2024) plus Radiofax Images of Kong-rey - Many thanks to SWLing Post contributor and noted political cartoonist, Carlos Latuff, who shares illustrated radio listening report of a recent Radio Nacio...15 hours ago
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SOTA, POTA & Lessons Learned: John and Zach Activate Grassy Mountain - Many thanks to John Hartzell (W3HN) and Zach Hartzell (NI4K) who share the following guest post: Activating Grassy Mountain, GA for SOTA and two POTA parks...1 day ago
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Toro MX4250 deck idler maintenance - The Toro MX4250 is a ZT ride on mower (riding mower). During recent spindle maintenance, I noted that the idler bearings were quite rough. This was surpris...1 day ago
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A Few Free Swapmeet Finds - Every year in the summer, The California Historical Radio Society (CHRS) in Alameda, CA host their annual “Radio Day by The Bay”. If you live in the area, ...
3 days ago -
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October 26, 2024. Our democracy is at stake (Big Time). Vote wisely! - Fabricating the Hybrid SSB Transceiver
5 days ago -
K4OGO - Episode 521 - Walt Hudson - K4OGO Walt Hudson, K4OGO, has always lived by and had a love of the sea, pursuing a career in ship building, beginning in Port ...5 days ago
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HRWB 221 - Thomas, K4SWL, On Hurricane Helene and Emergency Preparation - In this episode, our dear friend Thomas, K4SWL, tells us about the devestation in North Carolina in the aftermath of Hurricane Helene. Thomas shares his...1 week ago
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Your LF Station's Best Friend - The Scopematch PT.II - As mentioned in Part I, my construction of the MØBMU-designed Scopematch has proven to be the most valuable piece of test gear in my LF station. If you...
2 weeks 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...3 weeks 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...3 weeks ago
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Neon bar-graph VSWR/Power meter using the ИН-13 (a.k.a "IN-13") "Nixie" - Part 2 - *Figure 1:* Power/VSWR meter using ИН-13 neon bar-graph indicators. Click on the image for a larger version In Part 1 *(link)* I laid out the requirements o...
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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 ...
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QMX+ 160-6m multi-mode transceiver - {gallery}qmxp/0{/gallery} QMX+: a feature-packed, high performance, 160-6m, CW and Digi-modes transceiver kit, including embedded SDR, 24-bit 48 ksps US...5 months ago
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Broadcast Band AM Radio - See the YouTube series for more information: http://www.youtube.com/c/CharlieMorrisZL2CTM Buffer Amplifier Low Pass Filter IF Ampli...
5 months ago -
January 13, 2024. Just Technical Stuff Today. - https://n6qw.blogspot.com Our New Home!9 months ago
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New QRP Cluster 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...1 year 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 ...2 years 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...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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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
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The S and the S are great, the A and the K I hate.
ReplyDeleteA prophetic propagation poet in Portland!
ReplyDeleteWell Said!
ReplyDeleteAs of 14May2024 at 1930UTC we have:
ReplyDeleteSFI=215 SN=182 A-Index=30 K-Index=2
Hopefully, better days ahead.
I have some interesting recordings of carrier frequency shifting on 3330, 7850 (CHU), 15000 and 25000 (WWV) during the peak of the Aurora last weekend. I plan to write it up as a blog post - I'll send you a link once it is done! - K6AUS
ReplyDelete