Ansley W. Sawyer wrote:
...
I have almost the same set up as do you. I have installed a Brookhouse
multiplexer so that I do not have to switch NMEA talkers on and off.
The GPS(Furuno 7000), Autopilot(Simrad Robertson AP20 with 3000x
box), and the fathometer (Furuno RD30 with Airmar transducer) all
feed into the multiplexer. The multiplexer then feeds out to the GPS,
Radar Position (Furuno 1721M2), Radar Compass, Autopilot, & Depth and
the computer ...

I think I am getting somewhere now thanks to your explanation, but still a
few questions. Why first feed GPS info into the multiplexer, than out from
the multiplexer back to the GPS? To allow route and waypoint uploads to the
GPS?

... The AIS receiver(Milltech SR161 with antenna splitter)
I feed straight into the computer with the Cap'n software. The
computer get GPS data from the multiplexer and AIS data from the AIS
receiver. It all works great.

This is I believe the question I am trying to address. Are you saying that
by feeding GPS data and AIS data _separately_ into Capn 8.3, they are
combining in the Capn software to properly display AIS info on the chart?

--
Good luck and good sailing.
s/v Kerry Deare of Barnegat
http://home.comcast.net/~kerrydeare