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| GeoCommunity Mailing List |
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| Mailing List Archives |
| Subject: | RE: [gislist] GPS |
| Date: |
05/18/2004 04:30:00 PM |
| From: |
Dupler, Phillip |
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There are systems such as these =
http://www.navtechgps.com/supply/difsys.asp but my impression is that =
the "sporting goods" type units are not designed for field data =
collection - i.e. you can awkwardly input limited info about "waypoints" =
and convert the waypoint files to GIS but you can't really set up a data =
dictionary for efficiency. These would be best suited to "locating" =
points that already exist in your GIS. Delorme makes a unit that works =
with a PDA and you can post-process the files supposedly to meter level =
but I don't know what the software can do as far as data collection. It =
might be worth checking into. We use Trimble equipment for initial data =
collection. It is expensive on the front end, but pays for itself in =
time savings and reliability. =20
Phil
-----Original Message-----
From: Mick [mailto:mickb@clgw.net]
Sent: Tuesday, May 18, 2004 4:05 PM
To: gislist@lists.thinkburst.com
Subject: [gislist] GPS
I'm looking at GPS handheld units that I can use to map
our Utility System. Example ...get waypoints on Power Poles,Fire =
Hydrants,etc... Someone has told me that in
order to get within 15 feet or less that I would need "survey
grade" equipment. I know someone that works for Soil=20
Conservation and they have a Garmin with a backpack.
Any suggestions would be appreciated. Thanks. MB
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