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Equipment / Re: flex 3000 for a transmitter?
« on: November 04, 2020, 2029 UTC »
KE9NS PSDR version will allow the 3000 to go 10kHz wide. It will sound clean and flat. The PSDR audio processing will sound OK on music, but it really isn't designed for that. Better to use an external multiband broadcast processor if possible. You can feed it into the Flexwire line level input on the back.
Duty cycle? While the 3000 has good cooling, based on my own experience with digi modes running 40 watts, depending on the band, it will probably not hold up to continuous transmit despite what the specs say. At a 1.2:1 match on 20m, the temp rises to 70c pretty quickly and the fans run full speed during one JT65 cycle. Broadcast program audio would be different but with processing for loudness may behave the same as continuous tones.
Duty cycle? While the 3000 has good cooling, based on my own experience with digi modes running 40 watts, depending on the band, it will probably not hold up to continuous transmit despite what the specs say. At a 1.2:1 match on 20m, the temp rises to 70c pretty quickly and the fans run full speed during one JT65 cycle. Broadcast program audio would be different but with processing for loudness may behave the same as continuous tones.