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201. Re: Topband: 5V 3A Wall Wart Recommendations? (score: 1)
Author: "Joe Subich, W4TV" <lists@subich.com>
Date: Wed, 26 Feb 2025 09:42:02 -0500
Unfortunately, they have nothing at 5V. I have a whole tub of linear wall warts I've saved from other devices over the years - everything from 6, 9, 12, 18 and 24V but nothing at 5V 3A. To wrap this
/archives//html/Topband/2025-02/msg00028.html (10,194 bytes)

202. Re: Topband: 1/4 wave 160M wire antenna (score: 1)
Author: "Joe Subich, W4TV" <lists@subich.com>
Date: Thu, 18 Dec 2025 15:48:47 -0500
The antenna system can be measured with a VNA, or even with an SWR meter. Using an SWR meter sweep the band to find the SWR minimum. At that frequency reactance is zero and you can calculate base-re
/archives//html/Topband/2025-12/msg00057.html (10,022 bytes)

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