Friday, October 17, 2025

Wikipedia: AI causing dangerous drop in human visitors. SolderSmoke is seeing this too!

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  48,060 visits to the SolderSmoke Blog site on September 21, 2025????  I took a look at where the traffic to the SolderSmoke blog has been ...
17 comments:
Thursday, October 16, 2025

A Wonderful Homebrew Direct Conversion Receiver (and other HB projects) from Italy

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This morning I asked YouTube to show me recently posted videos of "ham radio homebrew."  The results were disappointingly meager.....
2 comments:
Wednesday, October 15, 2025

The Perils of Overreliance on Math

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  On the Importance of Really Understanding Radio and Radio Circuitry  In the first version of my book I included (in bold letters) sections...
1 comment:
Tuesday, October 14, 2025

Radio Shack, Mixers, Terman

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T his morning while looking to an old book that is still a favorite, I found a footnote to an even older book that is also one of my favorit...
Monday, October 13, 2025

Will the carrier mix with the sidebands to produce audio in a simple diode detector without using envelope detection or square law detection?

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15 comments:

Is a diode operating in the square law region acting as a form of rectifier?

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Sunday, October 12, 2025

Understanding Mixers -- A Free Book Excerpt -- Enlightenment from SPRAT

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https://soldersmoke.com/book.htm      We've recently been talking about mixers, and it has become apparent to me that there is a big gap...
6 comments:
Friday, October 10, 2025

Does a simple, single diode envelope detector function the same way as a product detector does?

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Mike WU2D has an interesting series of videos on the simple detectors used in crystal radios.  Mike's videos touch on a discussion that ...
8 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...

So Where is My Dominican Antipode?

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There you have it.  I like the icons!   Here is the site:  https://www.antipodesmap.com/#coordinates-converter