Originally Posted by Sandero
The Horizon has several wires to output to NMEA...
I am presently using a Brookhouse MUX and Raymarine NMEA/Seatalk ES85001
What I want to do... don't know if this is possible... is connect the
GX2200 NMEA OUT (+ & -) 38400 (4800 can be set too) baud... and maybe the NMEA IN (+ & -) (I assume this is for using and external GPS)
The GX2200 NMEA out would replace the old Ray 120 antenna GPS data (I assume it is NMEA 183) Hopefully this would provide both GPS and AIS info to the Ray C80.
I need to check the ray pin outs...
I am not clear what you want to do but I am clear SH2200 manual says when you set the 'slow' port to HS, it will pick up the ais sentence - this will give you all the sentences you need on one set of SH wires.
However, your challenge is to get C80 see the gps data on its nmea port set to 38400.
You cannot do it the other way round because ais data cannot be set to 4800. C80 would accept the gps at at 4800 (but we are not sure if it would let you use it anyways).
1) set SH nmea alt port to HS,
2) use these two wires (not AIS wires),
4) play with C80 menus.
You will get AIS across, will you get gps? no idea, C80 older manual seems to suggest likely NOT.
Get C80 most recent firmware but only if this solves your problem.
Otherwise wire a fast gps unit into C80 via SeaTalk. If using HS2200 gps data for this, you will need Ray blackbox to convert nmea to ST. NOTE - worth the effort only if you are sure C80 allows you to switch gps source to an alternate (ST bus).
BROOKHOUSE I do not have one here only in my other boat. There are many makes. Maybe yours converts data from nmea to ST? Then plug
slow SH2200 gps data into Brookhouse and send ST data to C80 then switch C80 (if allowed) gps source to 'external'/ST.
PS Even if your Brookhose may be used as a multiplexer, this does not mean C80 can read gps data over the fast wires. THIS IS (IMHO) your challenge.