If I had a problem with a KAT3, the first thing I would check would be
the relays.
But where is the LP100 connected? It must be AFTER the KAT3, so a
problem in the KAT3 would not change the SWR indicated on the LP100 (or
the P3 for that matter).
Maybe you had a cable, connector, or antenna problem that damaged the
KAT3 somehow?
73,
Victor, 4X6GP
Rehovot, Israel
Formerly K2VCO
CWops no. 5
http://www.qsl.net/k2vco/
On 11/04/2019 15:44, Gary Smith wrote:
I have been having unusual transmit issues
with 160M, SWR issues I have long thought
was antenna related.
Last night I found when transmitting on
160 the SWR on the LP-100 suddenly showed
9.1 and the same with the remote sensor
for the P3 but no output shown on the P3
wattmeter. I connected a dummy to the amp,
same issue. attached it to the back of the
K3s & the same issue with the autotuner
unable to get a good match (HIGH SWR).
This was only on 160, all other bands were
fine.
I pulled a KAT3 from my backup K3 and all
now works well, 160M had what showed as a
beautiful SWR & the amp was very happy
showing a 1.2 SWR
Before I call Elecraft & take up their
tech time on a phone call, is there
anything I might check on this KAT3A
regarding a 160 failure before starting a
RMA? The 160 toroid looks fine and no
obvious issues show to inspection.
thanks & 73,
Gary
KA1J
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