Hi Dave,
I was busy the last few days, sorry.
Mike already answered, but I need to add that COM1 needs to be changed to mode-6 or mode-7 to
make COM1 work. This essentially duplicates CAT in parallel from COM2 to COM1. Note that you can
make COM1 a different baud rate than COM2, which helps with some stubborn devices.
73,
Mitch DJ0QN / K7DX