Quote:
Originally Posted by crackle
Hi
On TX with no audio it draws 0.5 amp rising to nearly 6 amps with a loud whistle. That is showing as just over 25 watts of RF on my power meter. (suspect accuracy)
Mike
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That sounds good. Definitely leave it at that.
Full supply volts to the drain feeds for SSB is right.
About 50% supply volts on AM allows it to get up to 70 or 80% modulation
And the FM mode somewhere between the two is good, because FM is constant power while AM and SSB have peaks. On SSB and AM the voltages and currents have to peak at what it takes to make the peak power, but the average is lass than this, but FM power has to be throttled back to keep the heat within the capabilities of sinks designed for AM and SSB.
David