[Elecraft] K1 bad drift on 20m

[Mike Morrow]

Tom wrote:

>Recently I discovered an drift problem on 20 (only 20)
>on my 4 band module. (Blue trimmer caps inside).
>This problem occurs during RX and TX.
>
>I must add that my problem does not exist with the 2 band module

Tom,

I've never heard a problem like this reported on the K1.  About the only
thing it can be is the 20m hetrodyne crystal (X2) circuit on the filter
board.  I'd re-heat the solder connections at X2 and at pin 5 of switching
relay K2B on the filter board.

When your unit is drifting, you can use another receiver to listen to the
oscillation of X2 (within a few kHz of 22.000 MHz) to determine that the X2
circuit is the source of the drift.

73,
Mike / KK5F