Don, Jim Thanks. I finally got there. Once I removed the Mic from the chain, the problem disappeared. With 150mV RMS @ 1kHz, I got just over 4W when the rig was set to deliver 5W. Close enough for me.
The problem is that the fist Mic I use (Icom MH36) and my Heil Proset 5 are both low output Mics. I'll get an Elecraft MH2 and put a pre amp in the Pro Set's line. 73, Gareth On 6 October 2014 21:56, Don Wilhelm <[email protected]> wrote: > Gareth, > You should find between 200 and 400 mV peak to peak (dependent on the > particular speech patterns) from an electret microphone such as the > Elecraft MH2. That is 70 to 140 mV RMS. > That is sufficient to drive the SSB output to pull power. > > 73, > Don W3FPR > > > On 10/6/2014 3:57 PM, Gareth - M5KVK wrote: > >> I want to remove the Mic as a source of variability but I don’t know what >> AF voltage should cause 100% of the set o/p power. >> >> >> > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
