Christophe,
When doing the C1 adjustment, look for the lowest voltage measured at U5
pin 1 (TP4) -do not look at the SWR at that point, but look for the
lowest voltage on your DMM.
Once you have achieved that null, then you will adjust the R26 and R27
potentiometers for the power indication and SWR indication. Do it as
specified in the manual.
Use 10 watts of power rather than 5 for a better indication.
After you have done the calibration at 10 watts, do a TUNE/DISPLAY (hold
both buttons together) with the power set a 80 watts or so, and fine
tune the adjustment of R26 to make the K2 power indication match your
external wattmeter.
Do not bother to adjust R27 again unless you had to move R26 a
significant amount (if you had to move R27 a lot, you may have another
problem to resolve).
73,
Don W3FPR
On 4/9/2020 3:25 PM, Christophe aufacf wrote:
Good morning all ,
Zero adjustment of SWR bridge (C1) page 48
as you see on the video , I set the K2 to 5Watts
https://we.tl/t-MOz5AX1v3l
I managed to adjust the SWR the K2 announces my power at 0.1 Watts !!
the consumption goes from 0.32 Amps in Rx, in Tune mode 0.5 amps
I should have 5 Watts
Thank you for your help
# K2 7369 - kpa 100 in progress
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