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GPS speedos

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Old 02-06-2003, 12:06 PM
  #21
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Dyno-I'm using a Garmin e-map unit. I spoke to Garmin about the availability of a patch cord with both power and output. The guy that I spoke with said that they used to carry them but were having a problem with them. It seems as if people were hooking up straight 12v (like I was going to-DOH!) and were frying the units. To save the consumer from themselves, the only way you can get external power is with a cig lighter attachment.

The tech was nice enough to point me to a company that made the correct patch cable. I don't recall the name, but I can dig out at home-if you guys want it.

BTW-I noticed that Gaffrig and Nordskog came out with the GPS speeds at the exact same time. Coincidence? I suspect there is only one supplier.
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Old 02-06-2003, 12:12 PM
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Very True Wally....
I am just so used to going straight to the factory I didn't think
it through at the time. I won't do it again though.
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Old 02-06-2003, 12:15 PM
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Why would you want a GPS speedo??? I like the readings of my "normal" speedo.

If a passenger wants to know how fast we are going, I just point at the speedo. They don't know that it lies on the high side by about 4 mph!
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Old 02-06-2003, 12:24 PM
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4!!!!! **** mines off by at least 10!!!
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Old 02-06-2003, 01:37 PM
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Bayley, I have a 168 Garmin plus the GPS speedo, the speedo only wiggles when I flip the recall thingy but won't show speed at all, maybe what you said above is my problem, so if ya could say it in english or just so I could understand it, maybe I could get mine to work like it should.

Dave M, my 168 Garmin in the menu section has a option for sm, med, lrg, and x lrg, so I can make my speed really big so it's easy to see, so maybe just check your settings and you might get some bigger numbers.
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Old 02-06-2003, 11:38 PM
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here is how my garmin 12CX gps is wired to my gaffrig analog gps speedo using the data/power cable from gaffrig.

the brown wire from the gps data/power cable is connected to the center wire on the smaller connector on the back of the speedo. this wire is white.

the white wire on the gps data/power cable is not needed for the speedo.

speedo large connector
red +12V
black ground
violet center position of clear/recall switch
gray recall side of switch
orange clear side of switch

speedo small connector
center white lead <--> brown lead from gps power/data cable

gps setup screen interface page

None/NMEA
NMEA 0183 2.0
4800 Baud
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