[Elecraft] K3 Strange Power Output Problem

[Brian Hunt]

I ran into this today too, different frequencies though. I recently installed the KBPF3 module and have it enabled full time. I think what happened is the VFO-A frequency sets the BPF segment to be used and with the wide split, it's not the right one for the VFO-B TX frequency to use. Therefore you don't get enough drive through to the amplifier stages. The K3 will not switch BPF segments to go between RX and TX states. I got an ERR:TXG indicating something was afoul in the BPF setup. 

I tried to set the KBPF3 to 'not installed' but botched it since I didn't remember you had to cycle K3 power to reconfigure that option. By then NSS had faded into the noise. Oh well, got 'em on one band.  

73, Brian, K0DTJ