Unplug the the frequency display and see if the signal goes away. The signal
is coming from that unit. Verify it first and the decouple the vcc going into
the display unit
Mike. Wb8vge
Sent from my iPad
Knowledge is knowing a tomato is a fruit; Wisdom is not putting it in a fruit
salad.
> On Feb 25, 2021, at 10:11 PM, Paul Christensen <w9ac@arrl.net> wrote:
>
> I'm nearly finished with the restoration of a Triton IV (544 digital). I
> hear a pulsing frequency marker at 14.0 MHz but my 544 manual makes no
> mention of it. It's definitely not a 25 kHz or 100 kHz crystal calibrator.
> It's continuously there with no means to turn it on/off. I thought that
> perhaps it's a third-party add-on unit or perhaps a homebrew mod, but I don't
> see anything that would indicate either.
>
> Comments?
>
> Paul, W9AC
>
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