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

Armond Perretta wrote:
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?

That is correct. GPS data into COM1, AIS data into COM2. Is works great.
The same think for Coastal Explorer.

Hanz

Armond,

I send GPS data to the multiplexer which then sends it to the computer and
to the radar and to the fathometer display (which is a multifunction
display). This gives me position, COG, SOG, and waypoint info wherever I
want it.

I have the AIS and GPS entering the computer on two different ports due to
the difference in baud rates and the data plots are great. My understanding
of the new Brookhouse multiplexer is that it will combine AIS data with
other data and send it all together.

Check out this: http://brookhouseonline.com/pdf%20files/Mux_AIS_C.pdf


Ansley Sawyer
SV Pacem