[600MRG] Amp

[Michael Mussler]

I’ve run PSK on 600 and 630m with good results. Besides CW, it is a excellent mode for 
live QSOs. Some years back I had a couple of long QSOs with WD2XSH/16 (Colorado
to Minnesota) using PSK31. It provided almost solid print at around 1 watt ERP during the 
winter months. I ran reception tests during daytime that were quite reliable over ground 
wave distances, even over mountainous terrain. As John noted, a linear amplifier is 
required to run this mode. PSK31 signals are very spectrum efficient, another advantage 
for the narrow band slice that will be available. 

As time goes on other modes requiring linear operation will be available for experimentation 
and general use. Seriously consider linear operation as a ‘must’ for any 630m amplifier project
you may be  planning.
73
Mike
WD2XSH/12