Bill, That's absolutely right. There's so much confusion about such things and you have explained it very well. RMS can only ever be used as a value of current or voltage, never power.
73 Stephen, G4SJP On 21 August 2015 at 20:34, Bill Breeden <breede...@cableone.net> wrote: > > It's important to remember that RF power expressed in watts is always > based on RMS values. If RF watts are calculated by measuring the voltage > across a known load, the voltage must be expressed as an RMS value to > correctly calculate the power in watts. Watts are watts. There is no such > thing as "peak to peak" or "RMS watts" when expressing RF power in watts. > > Peak envelope power (PEP) has nothing to do with the difference between > the peak and average voltage of a sine wave. It is the measure of the > power of an RF signal at the modulation peak, averaged over one RF cycle. > The power measurement within that one RF cycle is still based on RMS values. > > 73, > > Bill - NA5DX > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to eastbrantw...@gmail.com > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
