Richard Ferch wrote: > > It's more than just the power calibration. Even after calibrating power > and > setting the requested power below 50W, with either 2.73/1.98 or 2.72/1.98 > the power output on PSK31 (in DATA A) mode often exceeds the requested > power, which results in splatter. I have been having to constantly ride > the > LINE IN and/or sound card output level controls in this weekend's PSK > contest to keep the power below 50W and PSK signal quality acceptable; I > have now switched back to 2.67/1.96 for the remainder of the contest. > I don't think it is anything to do with this revision. I first noticed this a few months ago, after one of the updates that made some changes to the ALC. Adjusting TXG VCE may be the answer, but the other change I made was to avoid tuning at 5.0 or 50W. The K3 recalibrates the power when you press TUNE at those exact power levels, and if it is looking into a mismatched (or varying, as you adjust the ATU) load then it mucks up the calibration.
----- Julian, G4ILO. K2 #392 K3 #222. http://www.g4ilo.com/ G4ILO's Shack http://www.ham-directory.com/ Ham Directory http://www.g4ilo.com/kcomm.html KComm for Elecraft K2 and K3 -- View this message in context: http://n2.nabble.com/f-w-2.73-1.98-power-calibration-tp1651339p1657645.html Sent from the [K3] 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
