Here is the latest picture of my version of the W3PM WSPR receiver. You can see the Ugly Weekender AF amp in the upper left. No front end of any kind yet -- the sig goes right from the antenna jack into the RF pin on the SBL-3 diode ring mixer.
Turns out that this morning was a bad time to test a new receiver. Spaceweather.com reports that a big coronal mass ejection hit earth today, causing havoc in the ionosphere. I'll try it again later today.
Free e-Book version of The ARRL Antenna Book
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Many thanks to Alex (KR1ST), on Mastodon, who notes that the e-Book version
of The ARRL Antenna Book 25th Edition is free on the ARRL website. Simply
go t...
1 hour ago
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