Hi All,
On 25 Dec 2004 at 14:40, John Rader wrote:
Last year I had to replace the1N5711s, D1 D2, after flying with my K2. John
This is really interesting. I'm just facing the same trouble. During last
WAG field operation I used my K2 with everything being fine. At the end of
the contest I switched off the RIG. When I came back two days later D1 and
D2 in my KAT100 had broken down (Vr = 1.5 V as measured with my DMM). The
coax line had been connected during the two days, but they were connected
via a remote antenna switch, which grounds all inputs when not in use.
There was no thunderstorm and I can hardly believe it was an ESD issue.
Are the diodes really that sensitive?
Is there a more robust replacement available? What about a protection
circuit?
VY 73 de Marcus, DL1EKC
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