[Elecraft] K3/100 TX problem on 20m

2024-03-07 Thread Paul Kent
Thanks again, Mike. My K3 has the bipolar 100w PA. I also have a properly-functioning K3S/100 with the CMOS PA. Just for comparison I ran the HP TX gain calibration on the K3S and it produced these numbers: 160m/19 80m/08 60m/10 40m/12 30m/13 20m/08 17m/08 15m/05 12m/10 10m/10 6m/06 The

[Elecraft] K3/100 TX problem on 20m

2024-03-06 Thread Paul Kent
Sent from Mail for Windows Thanks, Mike. The 50w TX gain numbers are: 160m/32, 80m/36, 60m/48, 40m/40, 30m/32, 20m/18, 17m/11, 15m/08, 12m/05, 10m/05, 6m/02 Paul, K0PK __ Elecraft

[Elecraft] K3/100 TX problem on 20m

2024-03-05 Thread Paul Kent
My K3/100 gives a high DC current warning when transmitting on 20m with power settings above 75 watts. Maximum output is about 80 watts and is unstable. All other bands perform normally with full 100w output and normal current draw. (50 ohm dummy load) I have done the TX gain and wattmeter