OK I messed up but it still works- VHF - wiring SSB - 2012

August 2012 - Marina Kona Kai Shelter Island San Diego, CA

We called ICOM 802 SSB support ((800) 253-1498 or (425) 450-6087) and the Garmin support (US Toll Free: 1-800-800-1020), both very nice.August 2012 - Marina Kona Kai Shelter Island San Diego, CA  

 We are wiring up the ICOM 802 SSB radio and there is an option for the COM 802 SSB to receive GPS date\time and location data. This is great for emergency calling as it will send that info along. It also displays it on the COM 802 SSB radio screen.

 Our Standard Horizon Matrix GX 2150 radio does the same thing but has a max of 20 km. 

 We wired the Standard Horizon Matrix GX 2150 up to the Garmin GPSMAP 740 chart plotter and the Standard Horizon Matrix GX 2150 is working fine now with AIS and GPS data from the Garmin GPSMAP 740 chart plotter.

 The Garmin GPSMAP 740 chart plotterr has one cable coming out of it for use with the NMEA 0183 network. We use the NMEA 2000 Network for all the Garmin network electronics. We had three wires blue, gray and violet I think wired to the Standard Horizon Matrix GX2150 VHF radio for AIS\GPS data. The VHF could be getting some data from both com ports.The Garmin chart plotter has two com ports and they can be set to different baud rates and sentencing.  At this time we have them both set the same.

The ICOM SSB 802 wants a different baud rate and sentencing than the Standard Horizon.

 So how to get the same data but different baud rate and sentencing  to the SSB ICOM radio?

 Well it is in the wiring harness coming out of the Garmin 740 chart plotter!

Only two wires should need to go to the VHF.

Green NMEA to battery buss

Using port one:

Blue – transmit

Brown – receive
Green NMEA - NMEA 0183 same battery to buss

Using port 2:

Gray – transmit

Vitol - receive

Green NMEA - NMEA 0183 same battery to buss

  At this time I think we have three wires going to the VHF for AIS so we will need to see which port wire is not needed and disconnect it and see what happens 😰

Then how do you put the plug that fits the SSB radio on the wires 😟?