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Garmin GPS #13192772 06/21/19 11:41 PM
Joined: Jan 2011
Posts: 462
Loomis ex Offline OP
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I have a Garmin 7612 with added external antenna. It works great when traveling at high speeds, but jumps around when holding on a spot, such as an offshore ledge. The map does not always show your exact position according to true North. Seems to work much better when boat is moving in one direction instead of sitting still. The antenna has a clear view of the sky.
Any recommendations on settings, or resolving this problem?

Moritz Chevrolet - 9101 Camp Bowie W Blvd, Fort Worth, TX - Monte Coon (817) 696-2003
Re: Garmin GPS [Re: Loomis ex] #13192783 06/21/19 11:48 PM
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dk2429 Offline
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Mine does the same. Never seen a GPS that doesn't


Majek 22 Extreme/225 Optimax Pro XS
2006 Chevy 2500HD Silverado/6.6 Duramax LBZ


Re: Garmin GPS [Re: Loomis ex] #13193236 06/22/19 02:59 PM
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tx2va07 Offline
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Not sure what antenna you have, but if its an external GPS, then its not made showing your heading. GPS antennas only show your heading based off of movement.

It sounds like what youre looking for is a heading sensor, to show the direction your boat is facing, even while sitting still.

Garmin has the Steadycast, which is a pretty good one. You can find it for less than $150.

Re: Garmin GPS [Re: tx2va07] #13193401 06/22/19 06:30 PM
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Loomis ex Offline OP
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I will try that.
Thanks!

Re: Garmin GPS [Re: Loomis ex] #13193773 06/23/19 11:46 AM
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ring fry Offline
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Steadycast.

SE Kansas grass grower


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GO JAYHAWKS

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