Posted by Ward K7PO [ wmwheaton@aim.com ] on May 15, 2023 at 00:32:21.

In Reply to: 1750 m linear 2 way transverter experiment posted by fonkyhonky336 on May 10, 2023 at 02:06:30.

I did that many years ago, for the same reasons you stated. Some of the early 23 CH SSB rigs were actually fairly good radios, nice filter, etc. 27 mhz oscillators for the LO are cheap and plentiful. A 27 mhz tcxo runs a couple dollars today. I copied most of WD4PLI's transverter from 73 magazine. Still works great. Too bad the rules don't specify output power instead of input power to the final or you could do what I use on 630 and 2200 meters, a high level mixer. 100 watts of 160 meters gives 25 watts out on LF. RX is automatic, but with ~6 db or so loss in the mixer. No big deal on LF. A tcxo, driver for the 4 FET's in the mixer, and some filtering at RF and IF. That's it. No switching, just insert the XVERTER between 160 rig and the LF antenna. Elegant simplicity! Good luck on your project. Keep us posted on the progress. Ward K7PO on the way to Hamvention!

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