On Sat, 2010-02-20 at 20:18 -0800, Ed Purvis wrote:
>
> I need some input that will help me decide whether to use the PII on AM or
> not.
> The best transmit audio and scope pattern is with full power (25 watts
> carrier and
> 100ish on peaks). That is fine except it is too much drive for the amp which
> I would
> like to limit to 100 watts carrier (Ameritron AL-80B).
> This all is just for casual AM operation when I am too lazy to fire up the
> Valiant II.
> Any input would be greatly appreciated. I am assuming the radio's ALC is used
> to limit
> power at less than full setting.
ALC limits peaks. Set the drive control for the unmodulated carrier you
need to get 100 watts carrier out of the amplfier, then the microphone
gain for 100% modulation. Monitor with the scope.
>
> thanks,
> Ed WA4NJY
> Bradenton, Fl
>
73, Jerry, K0CQ
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