[C320-list] FESTIVE WISHES TO ALL C320ers ...

Sun Dec 23 23:56:51 PST 2007

Thanks Jeff
for the cruising well wishes ....
was a time
when 3 foot of snow was all I wanted for Christmas
............ now I would be happiest if the Garmin48 would talk to ST4000+
the conundrum continues, but
will not stop our sail down to Sydney Harbour.
Will watch the start of the Sydney Hobart from home ... then sail down to
Sydney Harbour for New Years Eve Fireworks.
Our southern destination cruise is to Jervis Bay.
Back around 20th January or when the Champagne and Aussie Reds run out.

FESTIVE WISHES TO ALL C320ers ...
Santa Likes Aussies so much he delivers here first ...
too bad Orlando, we get first pickings ;)

regards

Bruce Stanley #1084
Sydney Australia

On Dec 24, 2007 12:50 PM, Jeff Hare <catalina at thehares.com> wrote:

> Have a great time Bruce!
>
>   The extent of my boating today was to climb over 3 foot snow banks and
> up
> into the cockpit so that I could knock the heavy snow off the boat cover.
> Well, in just 5 short months we'll be getting it ready to splash it back
> in
> the water for what amounts to 4.5 short months of sailing.
>
> How Pathetic.
> -Jeff
>
>
> -----Original Message-----
> From: c320-list-bounces at catalina320.com
> [mailto:c320-list-bounces at catalina320.com] On Behalf Of Bruce Stanley
> Sent: Sunday, December 23, 2007 5:48 PM
> To: C320-List
> Subject: Re: [C320-list] Data IN ... Data OUT Garmin to AutoHelmST4000Plus
>
> Bill
> thanks.
> I'm off to the boat for a go at this ... we are hoping to do a 150nm trip
> as
> of 27thDec!
> It would be great to have the GPS steering to wpts at times!
>
> cheers
>
> Bruce Stanley #1084
> Sydney Australia
>
> On Dec 24, 2007 9:37 AM, Bill Culbertson <billculb_a2 at yahoo.com> wrote:
>
> > Jeff is correct, Bruce.  What you are calling the 12v Ground is indeed
> the
> > 12v Ground and it is also the data ground. The data signal voltage on
> the
> > brown wire is relative to the Garmin ground wire.  So without that wire
> > connected to the -ve end of the NMEA input of the autopilot, the Garmin
> > signal voltage connected to the +ve end of the NMEA has no reference
> point.
> >
> > What can be confusing about the wiring is that the Garmin both sends
> data
> >  and receives data.  So logically the garmin would have six wires.  data
> out
> > and its gnd, data in and its gnd, 12v and its gnd.  As is customary when
> > there is not an electrical reason to keep separate, the Garmin unit uses
> the
> > single gnd wire for all three gnd purposes.
> >
> > Garmin     data -> -> -> -> data -> (brown)  -> NMEA + in
> >                data <- <- <- <- data <- (white)
> >                12V
> >                GND    -    -    -    -    -    -    -    -    NMEA - in
> >
> > Remember Jeff's advice to switch the Garmin unit to NMEA mode from
> Garmin
> > mode.  I forget this nearly every time I bring my 176 back onboard from
> > having taken it home to transfer track data to my PC. The PC wants
> Garmin
> > mode, the ST4000 wants NMEA mode.  I've taken to leaving it in NMEA
> mode.
> >  It's less disturbing if my PC won't upload track data then when I'm
> onboard
> > and the Garmin won't talk to the ST4000.
> >
> >  -bill
> >
> > ----- Original Message ----
> > From: Bruce Stanley <brucestanley36 at gmail.com>
> > To: C320-List <c320-list at catalina320.com>
> > Sent: Sunday, December 23, 2007 4:28:47 PM
> > Subject: Re: [C320-list] Data IN ... Data OUT Garmin to
> AutoHelmST4000Plus
> >
> > Hi Jeff
> > Do I read the 2 lines below:
> > ----------------------------------------------------------
> > Brown Data OUT wire from Garmin  --->  To Raymarine NMEA +
> > *GROUND wire* from Garmin cable    --->  To Raymarine NMEA -.
> > ----------------------------------------------------------
> > to mean that the *"12v" GROUND wire* from the Garmin ---> to Raymarine
> > NMEA???????
> >
> > Bruce Stanley
> > Sydney
> > ==================================================
> > On Dec 24, 2007 6:54 AM, Jeff Hare <catalina at thehares.com> wrote:
> > > Hi Bruce,
> > >
> > >  I probably should have researched this first, but from memory and
> what
> > > you've provided:
> > >
> > >  Garmin uses a 4 wire cable.  Power +12, NMEA Data IN,  NMEA Data OUT,
> > > GROUND (0v)
> > >
> > > For this application, I believe you'll be using the GARMIN BROWN (Data
> > Out),
> > > and the Ground wire.
> > > On the Raymarine end, I believe you'll connect:
> > >
> > > Brown Data OUT wire from Garmin  --->  To Raymarine NMEA +
> > > GROUND wire from Garmin cable    --->  To Raymarine NMEA -.
> > >
> > > This effectively TRANSMITS NMEA Sentences From the Garmin to the ray
> > marine
> > > NMEA Listening port.
> > >
> > > Since you don't need your GPS LISTENING to NMEA 1083 sentences from
> the
> > > RayMarine autopilot (other sources), you won't use the White DATA IN
> > line.
> > >
> > > Does this make sense?
> > >
> > > Also, when you set up your Autopilot, you need to be sure that it's
> > > listening to NMEA 1083 as well as setting the Garmin transmitting mode
> > to
> > > NMEA 1083.
> > > Usually the Garmin transmits using "GARMIN" protocol, so if you
> haven't
> > > changed that, you'll need to.
> > >
> > > I hope I got this right, but no harm will come if polarity is reversed
> > here,
> > > because they're only signal lines.
> > >
> > > If you need longer runs, standard network cable CAT-5 used for
> computer
> > > networks is just fine for this.
> > >
> > > -Jeff
> > >
> > > PS: I believe that you can drive up to 3 NMEA devices from the NMEA
> 1083
> > > output of your Garmin.
> > >
> > > -----Original Message-----
> > > From: c320-list-bounces at catalina320.com
> > > [mailto:c320-list-bounces at catalina320.com] On Behalf Of Bruce Stanley
> > > Sent: Sunday, December 23, 2007 3:54 AM
> > > To: C320-List
> > > Subject: [C320-list] Data IN ... Data OUT Garmin to AutoHelmST4000Plus
> > >
> > >
> > > Data IN and Data OUT
> > > Can you clarify?
> > >
> > > Firstly, I have the GarminGPS48 connected to my ST4000+
> > > I have 12v power, but
> > > "NO DATA".
> > >
> > > Garmin say:
> > > White=Data IN
> > > Brown=Data OUT
> > >
> > > ST4000Plus say:
> > > NMEA +, and
> > > NMEA -.
> > > ==============================================
> > > do I connect Garmin "White" to ST4000Plus "NMEA -"
>  ?????????????
> > > ==============================================
> > > HELP, PLEASE
> > > Have a great Festive Season, tooooooooooo
> > >
> > > Bruce Stanley
> > > C320 #1084
> > > Sydney Australia
> > >
> > > PS I have looked on Garmin and Raymarine sites...2 glasses of Red Wine
> > > Later I gave up!
> > >
> > >
> > >
> > >
> >
> >
> >
> >
>
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