Re: [Elecraft] K2 - 40m transmit problems

2008-01-20 Thread Zac Brown
Don, I rechecked/reheated RFC14 and R20. The voltages on Q19 are in-line now. Thanks, Zac Don Wilhelm wrote: Zac, For the bad voltages on Q19, look carefully for a bad solder connection on RFC14 (poorly tinned toroid lead perhaps?) and/or R20. The resistance measurement from Q19 source t

Re: [Elecraft] K2 - 40m transmit problems

2008-01-07 Thread Don Wilhelm
Zac, For the bad voltages on Q19, look carefully for a bad solder connection on RFC14 (poorly tinned toroid lead perhaps?) and/or R20. The resistance measurement from Q19 source to ground should be close to 270 ohms. Note that this condition may or may not be related to your HiCur situatio

[Elecraft] K2 - 40m transmit problems

2008-01-07 Thread Zac Brown
I'm getting HiCurr messages when I transmit on 40m, the bargraph shows multiple bars lit, and I can hear a very faint squealing sound coming from the K2 when I transmit. I've built the RF probe and I'm going through the signal tracing steps in the manual. On the PLL Reference Oscillator steps