Brian,
There is no need to tune into a dummy load first. When the ATU menu is
set to CAL, the L and C elements in the KAT100 are bypassed.
There may be some residual L and C in the PC traces and relay contacts,
but that should be minimal.
Yes, you can use the TUNE button and observe the SWR on the K2 as you
tune the loop.
Be aware that the TUNE with the KPA100 in-line and powered will be at 20
watts unless you set the power knob to a lower level.
73,
Don W3FPR
On 11/30/2015 2:20 PM, Brian - N5BCN via Elecraft wrote:
I've recently acquired a magloop that will be used with a K2/KPA100/KAT100
and I wanted to double check my tuning procedure.
My plan was to tune the KAT100 into a dummy load (ATU in AUTO mode) and then
place the ATU into SWR (x.x-1) mode. Then use the TUNE button on the K2 to
tune the loop to resonance, then operate. Repeat for any band changes or
when encountering significant SWR.
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