Hi Gary;
Look in from with the top off at the RF board where the KAT3 or KANT3
board plugs in.
Check T4 for darkening, it gets cooked if DC is applied to the antenna
connector (like a remote preamp power connected backwards or similar).
You mentioned a remote tuner? Does it get power up the coa
Hi Gary,
The K3 computes forward and reflected power
from samples taken in the SWR bridge circuit.
A Tif X Gain calibration could fail because the
forward power reading is incorrect due to
a failure in that portion of the SWR bridge
circuit.
Do you have the KAT3 ATU in your K3?
If so, be sure tha
During operation with a home-brew mag-loop antenna, my K3 (#1222) dropped power
to just under 50W (by the display). There had been an occasional arc in the
external loop tuner, so I'm assuming that was the cause of the K3 failure.
Subsequently, running the 50W TX Gain Calibration, some bands p
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