Re: f/w 2.73/1.98 power calibration

Posted by Richard Ferch on Dec 14, 2008; 6:44pm
URL: http://elecraft.85.s1.nabble.com/f-w-2-73-1-98-power-calibration-tp1651339p1655193.html

Steve Ward said:

> I just applied the latest beta firmware as I have done many times
> before, and it looks like this time my power calibration went out the
> window.  I'm putting out about 70w on PSK31 when I dialed in 45.
>
> Just wanted to give folks a heads-up to watch their power output when
> they start operating under new firmware, it might be time to re-calibrate!

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.

73,
Rich VE3KI
K3 #1595

_______________________________________________
Elecraft mailing list
Post to: [hidden email]
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