I'm not sure how The Capn finds the GPS NMEA input on the USB.. It just
eventually finds it and once it does, it works fine.. (it's all magic to
me)..

I know that when I use my handheld GPS on the serial port it takes longer
for The Capn to find the port.

Your correct, this is one of the GPS modules used by the street navigation
programs but works fine inside the boat at the nav station while the
handheld has problems dealing with deck hardware and the VHF, etc. that seem
to block it's view of the satilites.

I can get the same module with a serial port input (plus some adaptor to get
power off the PS or something connector). Cost is about $80 for the either
model. Cheaper than a multiplexor or a fixed mounted GPS with external
antenna.

I purchased the special opto isolator serial cable that Nautical Tech.
'highly' recommends for the serial port 'goes-ins & goes-outs' (about $35).
Right now it's not doing any good..

Thanks to everyone for their comments and recommendations.

Steve
s/v Good Intentions