Coordinates don't matfch
Sat, 06/06/2009 - 2:29pm
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15 years
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Just returned from a trip out west. I wanted to retain the coordinates of sites visited to make a comprehensive map using Google Maps. I did a "Where Am I" at each site and saved it in my Favorites file.
I'm home now and when I put the coordinates in Google Maps I'm 30 or 40 miles off most of the time. What did I do wrong?
Check on MapSource
Just returned from a trip out west. I wanted to retain the coordinates of sites visited to make a comprehensive map using Google Maps. I did a "Where Am I" at each site and saved it in my Favorites file.
I'm home now and when I put the coordinates in Google Maps I'm 30 or 40 miles off most of the time. What did I do wrong?
Have you tried to check the waypoints on MapSource?
And you have used your GPS on your trip without any problems?
Nüvi 765T, Nüvi 1390T, Nüvi 2559 and 2695 LMT, GPS12, GPS18 (used in nRoute and Oziexplorer on laptop), GPSmap76CSx, SonyEricsson X1 (For OziExplorer CE maps)
Format?
What did I do wrong?
In what format are you supplying the coordinates to Google Maps?
Nuvi 660 -- and not upgrading it or maps until Garmin fixes long-standing bugs/problems, and get maps to where they are much more current, AND corrected on a more timely basis when advised of mistakes.
Sounds like your GPSr is in
Sounds like your GPSr is in one format and Google is in a different format. I prefer degree decimal.
To change format on Nuvi 255, you select Where to>Coordinates>Format. Degree Decimal is the 3rd choice.
Hawk - Nuvi 1450
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Just to expound on what everyone has said, you like are using mismatched coordinate formats.
Coordinates can be expressed in several different formats.
They are most commonly Degrees Minutes Seconds (DDD MM SS), Decimal Degrees (DDD.DDDD), or Degrees Decimal Minutes (DDD MM.MMM).
The last format is the most common in current GPS models. The second one is the one we use in Custom POI files.
Here are some examples of the same coordinates expressed in different formats.
Degrees, Minutes and Seconds
DDD° MM' SS.S"
N 32° 18' 23.1" W 122° 36' 52.5"
Decimal Degrees
DDD.DDDDD°
N 32.30642° W 122.61458°
Degrees and Decimal Minutes
DDD° MM.MMM'
N 32° 18.385' W 122° 36.875'
So, here are some options.
Change the format format on the GPS unit.
Convert the coordinates to the format Google Maps wants.
Use MapSource.
Use Google Earth.
Use GPS Visualizer.