Jump to content

Why does my gps change the coordinates I put in?


Sea Wolf
Followers 0

Recommended Posts

Another user with the same setup that I have (Visor Prism and Magellan GPS Companion) have noticed that when we put in waypoints in Nav Companion, it changes the last digit downward by one. Is this normal for ALL GPS units or is this a quirk of the hardware/software that we are using?

 

I realize that it is a minor difference, hust curious.

Link to comment

It's just the software, and it's because internally the software stores the coords in a different format from the one you're displaying them in.

 

Here's what I posted in another thread to answer this question: [NAV Companion] rounds the coordinates because internally it keeps the data as degrees and decimal degrees, to five decimal places. When you use a different display format or when you enter data in a different format, it first converts it to DDD.DDDDD. In the process, it occasionally gets a result that doesn't convert back to your original number. I suppose they could fix that if they were inclined to, since DDD.DDDDD has inherently more resolution than DDD MM.MMM, but it's not really that serious: a thousandth of a minute is only about 6 feet or so at most, so it's on the same scale as the error you already get from the GPS. If it bothers you, do what I do: leave the display in DDD.DDDDD but enter the waypoints in DDD MM.MMM. You'll never see the discrepancy that way.

 

warm.gif

 

[This message was edited by Warm Fuzzies - Fuzzy on June 21, 2002 at 09:57 AM.]

Link to comment

Thanks for the info. I guess I need to look into some other software. Like Warm Fuzzies pointed out in another thread, the software obviously did not get as much attention as the hardware.

 

Does anyone have any suggestions as to the best software for the Palm OS to use for geocaching? icon_confused.gif

Link to comment

Thanks for the info. I guess I need to look into some other software. Like Warm Fuzzies pointed out in another thread, the software obviously did not get as much attention as the hardware.

 

Does anyone have any suggestions as to the best software for the Palm OS to use for geocaching? icon_confused.gif

Link to comment

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
Followers 0
×
×
  • Create New...