[CQ-Contest] `150 watt limit question

w7dra at juno.com w7dra at juno.com
Tue Jul 4 19:05:56 EDT 2017


way back when for some reason i entered a 100 LP class for some contest,
and the only power meter i had was an eico 7 something 
SWR meter. i got a set of carbon reisiters to 50 ohms and measured the
wave form on a scope, and also calculated the Vfinal plate*Ifinal plate
*.6, and all three methods agreed pretty well.

scope had 10x freq resopnse of measured freq

so i stick with Vf*If*.6

mike w7dra

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