I have found the same problem when I use my data with DRG's.  I purchase 1m
resolution terrain data and find that the drg's are a few hundred feet to
the west and slightly north of where they should be.  I assume that my data
is correct and that the drg files are off, but I don't know for positive.

Mike Lepage, B.Sc.
Senior RF Engineer
Wireless Professional Services
Lucent Technologies
314-891-2130
[EMAIL PROTECTED]


-----Original Message-----
From: Roy Chiappini [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, October 06, 1999 10:25 PM
To: mi-l (E-mail)
Subject: MI GPS & USGS DRGs


Question:  Why is it that when using MI w/Geotracker to show position
over USGS DRGs there seems to be an error of a couple of  hundred feet
or so to the east.  (Position tracking icon is off set to the west or is
the image offset to the east?)

I think I have a problem but don't know what it is.  Maybe
incorrect/incompatible projection?  Any help would be appreciated.

tia

Roy

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