At 3/13/2008 06:35, you wrote: >Many GE Mastr II PAs will put out 150 watt. However, where all this power >is in freq is often not at the freq one wants...it is in spurs. Looks good >on watt meter, but not on spectrum anal.
I have never seen this on a Mastr II PA unless it was defective (bad transistor, filter cap, etc.). Many G.E. RFPAs will output well in excess of their rating, & do so cleanly. I have a "25 watt" VHFHB MVP that will do over 50 watts. The real reason you don't want to do this is that the PCB & chassis design will not handle the dissipated power for very long, resulting in heat-related failures such as you describe. >You do need to get the power output down to spec for spectral reasons No. > and also for life of the PA. Yes. Bob NO6B
