[ntp:questions] GPS 18 LVC (Ground Wire Question)

unruh unruh at wormhole.physics.ubc.ca
Tue Mar 16 06:11:14 UTC 2010


On 2010-03-16, Alby <google at empire.org> wrote:
> On 15 Mar, 15:07, "David J Taylor" <david-
> tay... at blueyonder.co.uk.invalid> wrote:
>> "Alby" <goo... at empire.org> wrote in message
>>
>> news:b3ad75d2-08e5-4ac0-9c1f-81ad31174212 at g26g2000yqn.googlegroups.com...
>> []
>>
>> > I still plan to wire it up to the ground, but I'm just double checking
>> > that I'm not going crazy. Does everybody else
>> > only have 2 Black Wires?
>>
>> Sensible choice.
>>
>> Some Garmin cable has three blacks, and some two. ?It might even be that
>> the 88 has two, and the 18X three. ?I have all mine wired to ground and
>> the end of the cable, and I should have really checked with a meter first
>> to see whether they were all wired to ground in the GPS itself. ?I
>> innocently omitted this from my Web page:
>>
>> ?http://www.satsignal.eu/ntp/FreeBSD-GPS-PPS.htm#usb
>>
>> Cheers,
>> David
>
>
>
>
>  Thanks David. Just the man I wanted to get an update from, since I'm
> actually following
> your website for my build. Below I've included a picture of the wires
> coming out of my
> Garmin GPS hockey puck.  I'm pretty sure I have the 18 and not the
> 18x, but what mine
> says on the back is (Garmin GPS 18 LVC, 5m).
>
>  So can I assume the extra thin black wire is just an additional
> ground wire?
>
> http://mustang.empire.org/garmingps18.jpg
>

I would assume so. It originally came with a plug on the end. That plug
has 6 connections to it. How did your 7 wires connect to that 6 pin
plug?





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