one more bit of info. If I use the tuner into 50 ohms it finds a match but when I manually transmit the swr through the tuner is high, for example 4.4:1 on 40. Bypassing the tuner gives the 1:1 expected with the dummy load, although at 30 some watts.
I really think there is a floating cable ground somewhere in there. Mark n2qt -----Original Message----- From: Mark n2qt Sent: Saturday, September 22, 2012 1:44 PM To: Elecraft@mailman.qth.net Subject: [Elecraft] K3 power output problems On a new to me K3, I am having problems with power output below 15M. For example the power output on 80 maxed out at 30 watts. (good swr etc., no alarms, voltage input is good etc.). So figured it was a TX gain issue so set up recalibrate it. The 5 W calibration goes fine on 160, but fails on 80 with the following dialog Starting 5 watt calibration Calibrating at 1.900 MHz Calibrating at 3.750 MHz SWR 3.7-1 is too high for calibration Verify that a dummy load is attached to "AN2;" (and yes the dummy load was connected to AN2, I had previously tried it on AN1 with the same results.) If I then transmit manually, the SWR indicated is 1:1 and I can adjust power up to the same 30W indicated previously. So, the TX calibrate complains of high SWR, but manually cannot replicate it. Any ideas (really, really) welcome. Unit does have the AntTuner which is set to bypass (and it looks like the calibrate routine also does this.) Mark n2qt ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
