Showing posts with label antennas. Show all posts
Showing posts with label antennas. Show all posts
Saturday, October 17, 2026

Wow! Jomon VU3IZD's Homebrew Modular BITX 40 Transceiver

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  I really liked Jomon's rig.  The modular approach is brilliant as is his explanation of how each stage works.   He emphasizes the bene...
8 comments:
Friday, October 16, 2026

Spies On The Air? Israel's Spy in Syria: Eli Cohen and HF CW in the 1960s -- Cohen's Antenna and Thermatron QRP Transmitter

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  Eli Cohen in 1959 This week I watched the Netflix show about the Israeli intelligence agent Eli Cohen:    https://www.netflix.com/title/80...
9 comments:
Wednesday, July 15, 2026

The Smith Chart -- Veritasium Explains its Origins and How it Works

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This is really interesting and represents one of the best explanations of the Smith Chart that I have seen.   One quibble:  In the beginning...
7 comments:
Tuesday, April 21, 2026

The REALLY BIG Dish: China's Sky Eye

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The technology used is really interesting, as is the struggle to maintain a radio quiet zone around the telescope.  The limestone geology wi...
Tuesday, April 7, 2026

Are There Really Photons on the Signals from, say, a 20 meter Dipole?

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This line from the Hack-A-Day article got me:   " Everything on the electromagnetic spectrum has some properties of both waves and part...
3 comments:
Saturday, March 21, 2026

Space Hints from the Dominican Republic in 1994

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Check out the article in the link below.  I too got a QSL from RS-10!  https://www.gadgeteer.us/SPAHINT.HTM The 2 meter portion of the Ray-G...
Monday, February 23, 2026

SolderSmoke Podcast 263: DR-PR, UM, DCRX, SKN, Design, PSSST, W7ZOI, FT-101, HW32A, VK, HST, AMP, MAILBAG

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Pete Juliano N6QW February 23, 2026 SolderSmoke Podcast #263 is available for download:  Audio:   http://soldersmoke.com/soldersmoke263.mp3 ...
4 comments:
Thursday, January 29, 2026

Attempting 2 meter contact, Dominican Republic to Puerto Rico

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It is about 100 miles across the Mona Channel.  That is a longshot on 2 meters, but I got the idea when, this past summer, I regularly hear...
12 comments:
Wednesday, November 5, 2025

VK3MO and WA3O - The Brotherhood of Ham Radio

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Ian VK3MO and his daughter Rachel in 2006 I have known Mike WA3O for many years -- he sent me his HW-7 QRP transceiver, which I proudly disp...
3 comments:
Thursday, October 9, 2025

Why I can listen to both sides of VK-G Long Path QSOs in the Dominican Republic

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Bottom line:  I think when Australians talk to Brits via long path,  in the Dominican Republic I am between the two. Both have their beam an...