Hello everyone. I almost made it to the finish line with my K2. I'm
encountering a problem with the KPA100 SWR Bridge Null Adjustment (C1). I have
everything hooked up correctly as far as I can determine. I set the power knob
for 5.0 W. Enter tune mode and adjust C1 to get 1.0-1 SWR on the K2 display.
The best I can achieve is 3.6w and 3.4-1 SWR. When the display reads this
value my SX-200 power meter indicates about 18 watts out!! Also some of the
voltages read a little high:
D13 cathode should be 90 to 150v : reads 158v.
U4 (MAX 1406) pin 8 should be -5 to -25v : reads -28v
Test Equipment Used: DL-1 and MFJ dummy loads.
SX-200 power meter.
I have given the board a close visual inspection and nothing looks bad. The red
and green leads on T4 go to the correct pads. Any ideas? Thanks very much.
Harvey KN6VPNo virus found in this outgoing message.
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