Is there an GPS unit that will get me within 10 feet of a site?
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  1. #1

    Mar 2021
    1
    All Types Of Treasure Hunting

    Is there an GPS unit that will get me within 10 feet of a site?

    I have a Garmin GPS40 and it tells me when I get from 175 feet to 1000 feet from my preset waypoint.
    I need something alot more accurate.
    Any ideas?

  2. #2
    us
    Apr 2014
    NJ
    Multi Kruzer, Anfibio multi, Apex, ORX, Deus, Compadre
    196
    437 times
    All Types Of Treasure Hunting
    I'm no expert but I think you're talking about the alert feature that lets you know you are getting close to your selected waypoint. As I recall that distance can be chosen - ie 175 feet, etc..

    I seldom use my gps (garmin gpsmap 62s) so I'm very rusty as far as how it works, but I believe it generally gets to within 20-30 feet of the selected waypoint. Sometimes even closer.

    I believe Garmin's newest model (gpsmap 66st - or something along those lines) will typically get within 10-15 feet of the selected waypoint. It uses multiple satellite systems (as opposed to mine which uses only the US system) so it is supposedly far more accurate. Whether that is true, or not, I cannot say - I haven't used one.

    My understanding is that coordinates from a source such as google earth are not going to exactly match up with the actual coordinates, so if your waypoint was selected on the basis of something like google earth there is (apparently anyway) a discrepancy. Another factor is the (for lack of a more accurate term) unit of measurement - for example Google Earth might be set to one unit and your gps might be set to another unit. Both can be changed and I suspect accuracy will be far better if the two are using the same unit of measurement.

  3. #3
    RTR
    RTR is offline
    us
    Roger. USAF Vietnam war Combat Vet

    Nov 2017
    Smith Mt. Lake Va.
    Teknetics Liberator Falcon MD-20 *********** Blue Bowl Angus MacKirk sluice Miller Table
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    GPS on Drones will get you w/in inches for a landing,so someone makes em.

  4. #4
    RTR
    RTR is offline
    us
    Roger. USAF Vietnam war Combat Vet

    Nov 2017
    Smith Mt. Lake Va.
    Teknetics Liberator Falcon MD-20 *********** Blue Bowl Angus MacKirk sluice Miller Table
    5,274
    19340 times
    All Types Of Treasure Hunting

 

 

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