Did you go through your gps menu to NMEA in/ out to get the gps to talk to the radio , (48 Baud) if you did then they should be talking to each other , and as others have said your lat and long will be displayed on the radio.
Regards Tim www.griffmarineservices.co.uk
Does anybody know how many devices can be connected to my one nmea 0183 output from my gps, and what is the best method for connecting them? I need at least 2 at the moment, one for downstairs plotter and one for pilot.
on the Garmin 48 you need to go to the interface page via the menu.
first line is the I/O format - highlight it via rocker, press Enter then rocker to none/NMEA
next line set to NMEA 0183 2.0
neat line go for 4800
The Brown wire is NMEA +ve and you should connect the black ground wire to the NMEA -ve or ground of the radio
I have guessed that the Cobra will be happy with v2.0 and 4800 baud, if it's manual says otherwise you change them in the area above
I will however bet a beer that the above will work........
Micky - that's Garmin brown to whatever is the NMEA +ve, or NMEA input on the Cobra radio - I can't find any online support for the Cobra so I can't tell you what colour that will be!
The black from the Garmin is it's unit ground, which you will have connected to -ve battery etc to power the unit. This usually, but not apparantly always, needs to make a direct connection to the NMEA -ve wire of the Cobra radio if it has one.
Tried to set up the GPS to Radio again today, but still no luck.
I think the units are handshaking OK, because, when i switch the radio off, a message comes up on the GPS as RT?? has failed, i forget what the exact initials were.