I don't think there are any drain plugs on this antenna. connection seals
were checked and re-done. I am not familiar with the desense tests, but
both repeater and duplexer were replaced. New duplexer tested at more than 100
db isolation and power is about 75 watts .Problem must be with
Yes it has been swept. (not by me, by someone who knows the commercial
repeater business) Nothing found. But remember this is an intermittant thing.
In a message dated 8/10/2010 9:50:44 A.M. Eastern Daylight Time,
petedcur...@gmail.com writes:
Have you swept the Antenna and
Hi Kevin,
The desense is a staticy reception of weaker signals( ie an HT at 25
miles) It had gotten worse as it started to affect strong signals too. If the
transmitter was turned off, the repeater could hear just fine. Problem is
intermittent and often followed a rainy day. We replaced
Hi Kevin,
I have confirmed that 2 of the 4 finals are bad. both are on one side of
the push pull. Both open base connection One has collector to emitter short.
The other open emitter.
I have not yet checked the drivers I might be able to test them without
removal. I have a friend trying to
Sucess!
I completely cleaned and re tinned my Weller 8100 tip, added some solder,
and got heat transfer to pop it up. I was not aware of the fish paper that
the wires came thru. Now to troubleshoot the amp. It probably has some blown
transistors as well as the cooked caps and 12 ohm
Thanks Kevin,
I think you are on to something. The areas that are pinned down seem to be
close to where the power supply wires enter the board from the underside. I
am wondering if the wires are glued down with RTV or something. Cautious
prying is still not getting me anywhere.
Marty
OK Kevin,
I had already tried the desoldering with a really good Pace unit, but the
heat did not transfer well. I will get a buddy to help and use my Weller
guns. I have a big 250 watt one here somewhere.
Marty
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