Another Question

[reds1964]

Hello All,

I have a question about power output from an AM transmitter as read on a Heath HM-102 wattmeter. When I turn the transmitter on in the AM mode the wattmeter shows 10 watts with no modulation. With modulation the wattmeter kicks up to about 20-25 watts. This is supposedly a 100 watt transmitter. I am assuming that the HM-102 is a peak reading wattmeter,so is the 25 watts my actual output power,or is it some multiple thereof, or in other words, would my power output with 100% modulation actually be 100 watts,PEP? I forget how to figure PEP so maybe you guys and gals can remind me. On the CW mode I get about 50 watts,but I have normal plate current 250mA or a little less since that is the max value for the 6146's, drive level is entirely sufficient,even over sufficient as I have to lower it a bit most times, so why don't I get the full 100 watts? I am using a dummy load for testing, the dry variety. So,do I need new finals, does my wattmeter need adjusting, or do I need to stop asking stupid questions? By the way, the transmitter is the Knight T-150A. Hope this doesn't open another can of worms about this particular transmitter.
Any help would be greatly apprecitated.

73's
Carl

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