Garmin GPS to DSC Radio Wiring

[ningram]

Hi
Have just finished installing a Garmin GPS 298 and Navman 7100, the radio has GPS + and - so that's easy, but which GPS cables to connect to them - NMEA or CANet?
It's probably in the book somewhere, but I can't find it...

Thanks

Nick

 

[Channel Ribs]

Hi Nick,

Go for NMEA, but there will be two ports and you need to go into the Garmin software to tell it to send NMEA rather that GARMIN data. Also make sure you have a common ground.

 

[JamesTT]

I hooked a Garmin 276c to an ICOM set, the output must be NMEA, works great.

 

[oceanfroggie]

NMEA. The 298C has ONE com port available on its power data cable. You need the BLACK (Ground) and BLUE (NMEA out/TX) wires connected to the VHF. The BLUE should be connected to the VHFs NMEA (IN / RX).

NB: Using the SETUP menu set the COM port to NMEA IN/OUT mode (ie NOT Garmin Data Transfer). This is the most common reason folk fail to get Garmin's talking with NMEA gear.

SYSTEM MENU => COMM TAB => NMEA IN/NMEA OUT

This is used to tell this pair of wires to read/write NMEA data, or Garmins own proprietary data transfer mode when connected to a PC or LAPTOP serial port, and using MAPSOURCE to upload/download waypoints, routes, tracks and optionally charts. (Great product btw)

PS: CA-Net is used for Garmin's black box sonar module

 

[Channel Ribs]

[ QUOTE ]
The 298C has ONE com port available on its power data cable.

[/ QUOTE ]

I see we agree on everything else, are you sure about this bit? /forums/images/graemlins/smile.gif

 

[oceanfroggie]

[ QUOTE ]
[ QUOTE ]
The 298C has ONE com port available on its power data cable.

[/ QUOTE ]I see we agree on everything else, are you sure about this bit? /forums/images/graemlins/smile.gif

[/ QUOTE ]

Think so. Checked the manual http://www.garmin.com/manuals/1067_OwnersManual.pdf The 298C has one COM port and one CA-NET interface. Many garmins have two COM ports (eg 276C), and the larger plotters have 2 x COM plus one CA-NET. (Have a look at the wiring diagram for the power data cable).

PS: TP Ethernet must be the future anyway for all marina networking and NMEA 2000

 

[Channel Ribs]

[ QUOTE ]
PS: TP Ethernet must be the future anyway for all marina networking and NMEA 2000

[/ QUOTE ]

Except for Raymarine who will come up with their own standards, oh hang on - they did that already /forums/images/graemlins/smile.gif

 

[Tim777]

Phone Navman for the correct wiring. Its not obvious as I found connecting Navman to Navman.

 

[ningram]

Thanks for all your replies, will let you know how I get on

Cheers

Nick

 

[ningram]

Sorted now - Thaks for all the help

cheers

Nick