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post #4 of Old 09-18-2008
sailingdog
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Not likely that he'll respond since his post is TWO YEARS OLD. Please check dates on posts before replying. Also, highly recommend you read the post in my signature.

As for interfacing Garmin NMEA ports... they have an odd design idiosyncracy—they use the 12 VDC ground for the signal ground. When you connect the NMEA wires from the other device, you need to connect the negative wire from it to the Garmin's 12 VDC ground. It may be because NMEA 0183 was originally designed as a RS-422 signal and many implementations of it actually are RS-232 signals. Give that a try.

Quote:
Originally Posted by jarcher View Post
Were you able to accomplish this?

Sailingdog

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Telstar 28
New England

You know what the first rule of sailing is? ...Love. You can learn all the math in the 'verse, but you take
a boat to the sea you don't love, she'll shake you off just as sure as the turning of the worlds. Love keeps
her going when she oughta fall down, tells you she's hurting 'fore she keens. Makes her a home.

—Cpt. Mal Reynolds, Serenity (edited)

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Last edited by sailingdog; 09-18-2008 at 08:24 AM.
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