[AMRadio] watt meter

W5OMR/Geoff w5omr at satx.rr.com
Wed Mar 1 18:26:07 EST 2006

Brett gazdzinski wrote:

>What is everyone doing for a watt meter?

I use a scope, plate current and plate voltage meters.

Final efficiency is typically 75% - so, 1500v @ 200mA = 300w DC input is 
close to 225w carrier output.

If you don't use a tuner, and know that your antenna is resonant at the 
frequency you want to operate, then you don't need a bridge.

For PEP?  Use a scope.   Allow your natural asymetrical voice peaks to 
rise where they need to, to faithfully reproduce your voice, without 
distortion or cross-over modulation at the low frequencies, and let 'er rip.

73 = Best Regards,

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