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.
11/22/2024. Sheer Brilliance!
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Read up on the design of the Drake TR-3 SSB/CW transceiver. This radio had
a rinky dink pair of 4 pole crystal filters which are affectionately called
the ...
5 minutes ago
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