About adding the CAT circuit

Hidehiko Komachi - JA9MAT


Well I've updated my QCX40 to the latest version of firmware - 1.04 successfully.
But I wonder about how to modify my QCX's hardware. I bought it on Oct.2017 so my QCX seems to have a early version of the PCB.

I've also read Version5 manual and I can see the hardware of CAT of it.
It seems OK that R49,R50 and D6 should be added according to the schematic.

Is there any other thing to do for the early version of QCX?
Any suggestions welcome.

Hidehiko. ja9mat

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