Hi again Pete,
I did realise that’s what you meant, and did have a look at the spec for your redundant GPS antenna. It seems to be a fairly straightforward (though expensive) piece of kit, so I can see why you’d like to use it. You’d need to find a gps module compatible with your external antenna, with a ‘separate antenna’ connection, and which is also compatible with the PilotAware software. Unfortunately I can’t help you with that one I’m afraid. Anyone else got any ideas?
Regards
Peter R