[TenTec] Jupiter w A/T ettings for Digital(PSK31) Communications

[Dr. Gerald N. Johnson]

On Fri, 2008-02-01 at 00:56 -0500, Gary Hoffman wrote:
> I imagine Jerry is right.
> 
> But my comment is that high power at ALC limit levels is not needed or
> desirable in PSK.

And my one evening's experience showed that the side comments will be
shown to those showing detectable third order intermod products.. E.g.
In a pause between sides of a two way QSO, a third ham will comment
about the drive being too high.
> 
> As most here already know, it is regular practice to operate with only a
> very modest power output.
> 
> It is common for people to see 5 or 6 discrete signals in the passband, and
> click on each one in turn and work each one, without re-tuning.

That puts the onus on the transmit signal generation to not have any
audio harmonics with the audio frequency is below 1/2 the transmit
filter upper cutoff when using a SSB transmitter.
> 
> Someone who comes on at high power, just blots out a wider swath of spectrum
> and forces people to move apart and waste the space.
> 
> Especially during a contest, this is most undesirable.
> 
> Its true that one can crank in all kinds of filters.  But the running of
> high power is still poor practice.
> 
> Besides we all remember that we are to run the lowest power needed at all
> times, right ?  :)

But sometimes QRP won't make the contact so more power is required or
the contact simply isn't made.
> 
> 73 de Gary, AA2IZ
>