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Frank,

A DC short to ground at the BNC is expected. A properly installed T507 guarantees that, and it is of no consequence.?

Your radio seems to have more than one problem.?

The scratchy audio and white noise is suggesting a possible IC407 problem. That can also mess up BPF and Image sweeps.

JZ KJ4A?



On Thu, Mar 28, 2024, 7:20?AM Frank Goeddeke <fgoeddeke@...> wrote:
Hi All,

I think I found the problem.? I believe I would T507 incorrectly, I get continuity on 6 of the wires together and on the other two wires together.? The instructions on page 44 say to wind the 0.6mm wire "ONE time through the hole".? I was previously under the impression that one time through means one time through.? But if we want a B-B wire as in the hole locations as in PCB diagram on page 44, that is technically TWO times through the hole, although I would probably describe it as ONE AND A HALF times through the hole.? I removed the T507 and will re-wind and re-install, I bet that solves at least one of my problems, the center pin on the BNC connector having continuity with the ground.? Once that is solved I'll re-check and see if other problems persist.

By the way, I forgot to mention in my original post I am using a 12V battery, it was measured at 11.9V when I started.

Thanks!? 73,

Frank
K8FXG

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