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Thank you very much for your prompt response Don.
I have conducted a couple of additional tests and with an external power
meter, even though the K3S indicates a power output of 75-80W, my external
meter shows a power output of 100W.
I will tighten all of the connections and my try some other cables as I only
have the equipment connected on my desktop in the interim.
Thanks again for your assistance.
73
Serge
VA3SB
-- Original Message --
From: Don Wilhelm [via Elecraft]
ml-node+s365791n7628553...@n2.nabble.com
Date: March 27, 2017 at 4:57 PM
Serge,
The first thing to do with a power output anomaly is to connect a dummy
load good for at least 100 watts and 50 ohms non-reactive to the K3 and
run the TX Gain Calibration from K3 Utility.
The next thing to do is to check all connectors to make sure they are
tight. With PL-259s, finger-tight may not be tight enough to
insure
good contact for the shield connection - use pliers and give them that
LITTLE bit of extra tightness - dont overdo it.
I certainly cannot guess at what might have changed, but TX Gain
Calibration is a good place to start.
After that, since your antennas have a low SWR, you might try it with
the KAT500 in bypass.
On 3/27/2017 4:27 PM, Serge_VA3SB wrote:
Hello to the group. I am a new user of the K3S/KAT500 combo.
Had fun using the rig during the contest over the weekend. I had it
set for
100 watts and it worked very well.
However, today I thought that i would place the KAT500 underneath the
K3S.
So after moving the KAT under the K3S I reconnected the cables and
power to
both units.
No changes were made to any of the antennas and my swr on all
antennas
80-10M is approx 1.1/1.2 - 1.
I cannot seem to be able to get the output power to 100 W.
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