[Elecraft] [K2] KAT2 and SWR calibration

[Chip Stratton]

I have a recently obtained K2 with KAT2 module that I am trying to get up to
speed. I'll have more questions and data later, but to start with I have a
question about calibrating the SWR readings.

After going through the procedures in the manual, I find that the KAT2 under
reads SWR. When the load is 50 ohms resistive, it shows 1:1. When SWR is
higher, e.g. an almost purely resistive 7:1  (according to a Rig Expert
AA-230) the KAT2 reads 4.5:1

I've calibrated forward power with a DL1 dummy load. Is there any problem
adjusting R2 such that SWR on the KAT2 corresponds more closely to what the
AA-230 reads?

Chip
AE5KA