hand held GPS/power/DSC cabling?

[Guest]

AT present we have a Garmin 45 handheld gps, this is powered by a 5pin plug, assume only 2 pins required for power others are redundant.
We intend to buy a DSC radio in the very near future. The radio will require a gps signal (NMEA format) which is presumably provided via the other 3 pins.

However to achieve this I presume the cable from the 5 pin plug has to split, 2 wires for power and 3 wires for nmea.

Does this arrangement exists as an off the shelf item???

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[jleaworthy]

I think you'll find that you have a four way socket in the Garmin 45 for which you require a power/data cable from any Garmin dealer. The four pins are power, common return, nmea in and nmea out. On my own set-up where the Garmin drives my tiller pilot I use only the power, nmea out and common return. The wires in the power data cable are clearly marked. Your Garmin handbook shows the steps you have to take to ensure the nmea output is correct. I think that you'll find it all works OK.

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[pvb]

NMEA out is the brown wire (nm)

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[snowleopard]

before going to the trouble of wiring it up, check what version of NMEA the gps and dsc work on. in my case my garmin gps was putting out NMEA 0183 v1.5 while my icom dsc was expecting v2.0 and could make no sense of v1.5

isn't technology wonderful?!

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[pvb]

GPS45 does both...

The Garmin 45 can be set up to output NMEA0183 in either version 1.5 or 2.0.

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