Stewart G3RXQ wrote: > > My PEAK power is down by about 50% as measured on an 200MHz > oscilloscope when the COMP is set to 0. This can't be right.. > I don't have your measuring equipment, Stewart, but something doesn't seem right to me either.
The power output doesn't seem consistent even when you don't change the settings. With MIC=60 CMP=0 and PWR=12.0 if I "aaalo" into the mic, my average reading power meter normally shows about 1W. But sometimes it holds at 2W or even 3W and sometimes a bit less. I have also observed the meter steady at say 2W then after about a second drop back to 1W, even though I haven't changed the pitch or tone of my "aaaa...". I realize this is not a scientific test, but I don't believe that there is that much difference between my consecutive repetitions of "aaalo." I need CMP=20 to get a reasonable average level on speech. Without any compression the talk power is too low. Even my FT-817 with 5W pep output can manage an average of 1W on speech and it doesn't have a speech compressor. After doing these tests I connected the antenna again and the power meter on the MFJ tuner was showing a low reading. I put the PM20 back and sure enough, the power was low. No control on the radio was changed. I twiddled the power control down and then back up to 12.0 and full power was restored. Go figure. ----- Julian, G4ILO K3 s/n: 222 K2 s/n: 392 G4ILO's Shack: www.g4ilo.com Zerobeat Ham Forums: www.zerobeat.net/smf -- View this message in context: http://www.nabble.com/K3%3A-two-problems-tp16943980p16957616.html Sent from the Elecraft mailing list archive at Nabble.com. _______________________________________________ Elecraft mailing list Post to: [email protected] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
