[Elecraft] Erratic RF Output

Sun Apr 27 15:00:01 2003

In addition to the other suggestion about running it into a dummy load,
you might want to look at the swr when the power drops if you have a swr
bridge appropriate for that power level.  I concur that it sounds very
much like antenna or feed line problems.  It could also be an
intermittent antenna or feedline connection.  Both of those conditions
(and others) would cause a high swr and final power foldback.
Monitoring the swr when that happens could indicate such a problem.  If
the rig does not act up while operating into a dummy load, I guess it
might confirm that the problem is not in the rig, but the SWR monitoring
would likely confirm something happening with the feedline/antenna
system.
By the way, when the power has dropped, do the receive signals also
drop?  If they do, I think that would likely be additional evidence of a
possible line/antenna problem.

Bruce - W8FU

-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of John FRANCIS
Sent: Saturday, April 26, 2003 3:17 PM
To: [email protected]
Subject: [Elecraft] Erratic RF Output

Sent on behalf of Tom Hamilton G0HIN  K2 #3912.

Ater some initial problems, which were all sorted out by Gary, I have
today had another problem.  Whilst in QSO with a Polish Station, my RF
output started jumping all over the place becoming very erratic.
Started of at 15 Watts ending up at less than 1 watt.
Wonder if anyone else has had this problem.  Any help much appreciated.

73's  Tom  G0HIN

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