Garmin 72 to Simrad RD68

[kdk]

On new (to me ) boat I have a Simrad RD68 DSC radio and a Garmin 72 handheld GPS.

In order that the radio will give our position in an emergency I want to connect the GPS to the radio.
Could some kind soul tell me ( in some detail ! ) how I might do that.

Thanks

 

[RIBW]

On new (to me ) boat I have a Simrad RD68 DSC radio and a Garmin 72 handheld GPS.
Could some kind soul tell me ( in some detail ! ) how I might do that.
Thanks

Hi,
As no one has leapt up, here is a roughly right answer - (I don't have a Simrad )

Step 1 gather the cables:-
Have you a cable for the Garmin? (The data cable not the power cable). Hopefully someone on here will help you source just the connector - much cheaper that the cable (~£13ish on eBay). Photo of my home-made in follow up if helpful.
Have you a cable for the Simrad?

Step 2: Wiring
Supply the GPS72 with +ve and 0V along the cable. (Unless you are happy to burn batteries)
Connect the T(ransmit) pin on the back of the GPS72 along the cable.
Join the T connection to the Simrad NMEA +ve
Join the 0V to the Simrad NMEA -ve (I think - someone else may have better info)

Step 3: Settings
Ensure the Garmin transmits so that the Simrad can receive (IIRC select NMEA at 4800baud on both the Garmin and the Simrad)

Good Luck
Bob

 

[kdk]

Thanks for that info.
Will try to get the system up and running when we get back home in October.
On way to Sardinia.

K.