In a message dated 7/13/2006 8:58:33 A.M. Pacific Daylight Time,
w2wg@comcast.net writes:
I had recently questioned whether the Omni or similar rigs had a design
problem if they needed to be protected by an Airpax breaker. One of the
Airpax advocates responded that the issue was not oscillation but the
ability of the rigs to put out full power into a mismatch causing a quick
thermal failure due to inadequate heat-sinking. To me that sounded like a
questionable explanation, but again a misdesign problem if true. But these
failures do indeed sound like oscillation problems. Strange indeed. My
condolences. It is a painful experience to have to ship a rig out for
repair.
73
Bob W2WG
I have an Airpax on my orion and it is also into a rig runner fused
distribution panel. twice the breaker has tripped and not once has the fuse (
25
amp) blown. both times I had the antenna switches in the wrong position and
keyed down with no antenna, and the airpax tripped. so I'm glad its in line.
Your mileage may vary, but it keeps me from destroying my own gear.. and
that is a good thing ( to plagiarize Martha)
tom N6AJR
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