Aloha, I also was not able to achieve a satisfactory transmitter power calibration using a borrowed Bird wattmeter and dummy load, in fact I was not able to get the Bird to read more than about 75 watts no matter what power level I set. I repeated the calibration using my own Elecraft WM1 and the calibration looked OK on both LP and HP, and the power according to WM1 topped out at about 106 watts.
There are a lot of unknowns here, and I don't know if these results are really inconsistent given the expected accuracy of the Bird meter and the WM1. I have two questions for the group: 1) what is the acceptable range of maximum power output from a K3, and 2) do the low power calibration and the high power calibration interact, so that the low power calibration must be done before trying the high power calibration. The Bird meter did not have a low power slug and I wasn't able to do a low power calibration with it, but the WM1 works over a wide power range and I did the WM1 calibrations in sequence. Unfortunately I haven't been able to get the Bird back for a re-check yet, maybe later this week. Curt AH6RE _______________________________________________ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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
