Rick Morel wrote in
:

On Tue, 28 Apr 2009 19:46:43 -0500, Geoff Schultz
wrote:

Rick,

The RayMarine S1 is a course computer. It has has no display. How do
you input the course to it? The ST600x and any other controller will
beep when it's time to change waypoints.

From what I can tell, your Garmin GPS antenna is connected to the S1
course computer, which is translating the lat/long into SeaTalk. There
has been no argument about this. The whole discussion has been about
connecting a NMEA instrument to the ST600x NMEA input and the ST600x
translating the NMEA data to SeaTalk. Your antenna is connected to the
S1 course computer and not the ST600x controller. What are you talking
about?

-- Geoff


Geoff, one more time and I give up.

I have a Garmin Chartplotter GPS. It's NMEA is connected by wires to
the S1 Computer NMEA connector.

The S1 Controller (display) is connected to the S1 Computer by wires
via Seatalk. This is the normal setup.


The S1 Controller will display data from the Garmin Chartplotter, SOG,
COG, XTE, Waypoint name, etc VIA the SEATALK.

Goto a waypoint or activate a route on the Garmin Chartplotter. Press
the "Track" button on the S1 Controller and S1 does some flashing and
figuring, the beeps and displays the new course and to turn port or
starboard. Press the "Track" button again and the S1 changes course
and steers to the waypoint or route segment.


NMEA Seatalk
[Garmin Chrtpltr] ------- [S1 Computer] ------ [S1 Display]


Rick

Rick,

The issue here seems to be with terminology. You have a S1 course
computer (corepack in RayMarine terminology) and some form of control
head. There is no such thing as a S1 controller. You probably have
either an ST70, ST600x, ST700x or ST800x (where x=1 or 2).

The S1 corepack will translate the NMEA lat/long data into SeaTalk. Note
that if the GPS antenna was connected to the NMEA input on the
controller, that it wouldn't translate (or even understand) it. The rest
of your data (depth, wind, etc) is most likely coming from SeaTalk
instruments and no translation is required.

-- Geoff
www.GeoffSchultz.org