HELP
I am trying to hook up my 797c2si to my Cobra MRF-55 VHF marine radio so that the 797 transmits GPS location to my marine radio, so if I ever have to push the DSC distress button, the Coast Guard receives my GPS coordinates automatically. I have the GPS cable from Cobra. I have NMEA output set to "on."
I have attached a crude wiring diagram of the way things look under the console. I am not real confident that the marine dealer that hooked up my HB did it exactly right, although it seems to work fine. (He's out of business now.)
On my drawing, the white wire from the "pigtail" is in shown in gray. The "W" is my Weathersense. The TCAP is the HB Unit. ( T for Transducer. C for Com. A for Access (unused). P for Power. ) The wires coming from the
I am also attaching a diagram that was posted elsewhere on this site. Looking at this diagram leads me to believe that my unit is currently hooked up wrong.
I believe that I am supposed to hook the red wire cobra wire to the white NMEA output wire. But what do I do with the black ground wire from the Cobra?
Is the red wire that comes out of the NMEA cable supposed to be wired into fuse box? In the second diagram I attached, leads me to believe it was supposed to be capped or terminated.
What about the ground wire that comes from NMEA? Leave it where it is or disconnect it and hook it to the black wire from the cobra unit? (which seems to make sense to me.)
Another HB document that was sent to me by HB says use AS-HHGPS which is the Handheld GPS cable. I ordered that cable. However the instructions they sent me is for a 797 with an internal GPS.
HELP