It could be a lot of things, but I would first suspect the cables. The
BNC cable from the K3 to the P3 is easy to check if you have another one
to temporarily swap. There is also a small-diameter cable inside the P3
with "TMP" connectors on each end that connect the rear-panel preamp
board to the front-panel board. You might try making sure the connector
is well-seated on both ends. Press the connector in with a twisting
motion.
Alan N1AL
On Sun, 2012-10-21 at 16:25 -0700, Fred Jensen wrote:
> My P3 appears to have gone deaf.
>
> Feeding it with my service monitor at 8.215 MHz, it shows -100 dBm with
> 10 mv input. The baseline is at -140 dBm. This seems like a very high
> signal input for -100 dBm on the display, anyone know what it should be?
>
> I fed the IF output from my K3 into my FT-847, and it seems to be fine,
> the WWV second ticks go to S9.
>
> I've been trying out a new antenna and I seem to have quite a bit of RF
> in the shack from it. That's about the time that S9 signals disappeared
> on the P3.
>
> 73,
>
> Fred K6DGW
> - Northern California Contest Club
> - CU in the 2013 Cal QSO Party 5-6 Oct 2013
> - www.cqp.org
>
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