My opinion only

- PSK has a pretty constant output that can exceed the duty cycle of a
SSB transmitter. Hence reducing the drive to a lower output is kind of
like the same average output on SSB

- PSK is also sensitive to non linearity and ALC/VOGAD/processors make a
mess of it. The trick to setting it up is to supply a test tone and
adjust the mic gain for zero indication on the ALC meter.

It is also worthwhile doing some linearity checks. ie using the PC sound
card (PSK test signal) alter the output by -3 and -6dB. Check that there
is a corresponding linear change in RF output power.

Cheers Bob VK2YQA

Keyboard In The Noise wrote:
Can any one point me to a good expalnation of why PSK31 should be operated
at low power ???

Have heard for a 100 Watt rig keep it throttled back to 35 Watts also heard
50 Watts.

I think it has to do distortion if higher power is used

But would like to see some detailed info on this

Post here as I must remain anon on the NG's

Thanks


--
Keyboard In The Noise

Opinions are the cheapest commodities in the world. Author unknown but
"right on"