UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post

G6Tanuki · 21st Mar 2023, 1:29 pm

One thing to be careful about is that if you reduce output-power on SSB by reducing the audio-drive, you can compromise the carrier-rejection; this was a bit of a problem in times-past when people wanted a few hundred Milliwatts of 28MHz SSB to drive a transverter for VHF; they'd reduce drive to the transverter by turning down the mic-gain on the main transceiver, which did nothing to similarly reduce the residual carrier.

21st Mar 2023, 1:29 pm	#4
G6Tanuki Dekatron Join Date: Apr 2012 Location: Wiltshire, UK. Posts: 13,996	Re: Yaesu FT 901DM SSB RF power control One thing to be careful about is that if you reduce output-power on SSB by reducing the audio-drive, you can compromise the carrier-rejection; this was a bit of a problem in times-past when people wanted a few hundred Milliwatts of 28MHz SSB to drive a transverter for VHF; they'd reduce drive to the transverter by turning down the mic-gain on the main transceiver, which did nothing to similarly reduce the residual carrier. __________________ I'm the Operator of my Pocket Calculator. -Kraftwerk.