20 Oct
2015
20 Oct
'15
10:38 a.m.
Ted,
I am using a 1/2wave vertical (10m Ringo) for an antenna. I have never been able to keep the down link transmitter turned on with less than 40w. Frequently it takes as much as 80w to keep the TX on. This may have as much to do with the radiation angle from my antenna as the power.
When 10m is open, the terrestrial "PY" and "LU" stations, who are clearly out of the footprint of NO84, turn on the FM-TX. They are probably using less than 30w.
So to answer the question, depends on your antenna. Use what it takes, but no more than needed.
KO6TZ Bob
When launched, the recommended TX power was no more than 25W. Has that changed?
73, Ted K7TRK