thanks Cpn Dan
I have basically the same as shown here
Raymarine Retired Autopilot Manuals
the course computer shown here has a gain control knob on the end that I don't have, other than that. it looks the same for the computer and control head.
I do have a linear drive
, I'm assuming a type 1 since its a 38' boat and no rudder
I do have a Radio Navigation
Interface ( shown at 1.1.6 in the manual above)
with bot speed selections on the knob.
So let me review my understanding to this point, I have a pre SeaTalk autopilot
and I need to wire the GPS to the input side of the Nav interface?
So what wires go to what?
this is the info from the Garmin
Connecting the Power/Data Cable
The power/data cable connects the GPS 72H to a 8-35 volt DC system and provides interface capabilities for connecting external devices. The color code in the diagram below indicates the appropriate harness connections. The replacement fuse is a AGC/3AG - 2.0 Amp fuse.
Data Out (Tx)-Brown
Data In (Rx)-White
GPS 72H Power/Data Cable
The following formats are supported for connection of external devices: GARMIN proprietary Differential GPS (DGPS), NMEA 0183 version 2.3, ASCII Text Output, and RTCM SC-104 input (version 2.0).
So far so good?
I'm going to hte boat tomorrow and will get some pictures, and check the wire colors that hooked to the old Loran C, I guess I can just wire the GPS straight to that?