[OKGIS] NMEA Output from GeoExplorer

[Mike Sharp]

David,

 

You can test the unit to see if it is in fact putting out the NEMA GPS
sentences by plugging the serial cable into your computer running WinXP,
go to Program- Accessories/Communications/HyperTerminal  setup a
connection with the same parameters as on the Geo.  You should see the
GPS sentences roll across the screen.  You do not need a GPS fix to do
this. 

 

Mike Sharp

Acting State Geographic Information Coordinator

Office of Geographic Information

and

Director Information Technology

Assistant Director AML Program

Oklahoma Conservation Commission

2800 N. Lincoln Blvd., Suite 160

Oklahoma City, OK 73105

405-521-4813 Office

405-833-0648 Cell

405-521-6686 Fax

Mike.Sharp at conservation.ok.gov

________________________________

From: okgis-bounces at gis.gis.ou.edu [mailto:okgis-bounces at gis.gis.ou.edu]
On Behalf Of David W. Wheelock
Sent: Wednesday, April 09, 2008 2:15 PM
To: Oklahoma GIS Community
Subject: [OKGIS] NMEA Output from GeoExplorer

 

I'm trying to get NMEA output from older model Trimble GeoExplorer
(Model I & II) GPS units.  What I'm trying to do is get them to work
with an ArcReader extension that's supposed to be able to read from the
COM1 port on a computer and show the output on a laptop without having
to buy any expensive software.  However, when I connect the GPS unit to
the laptop and test it, the extension says it can't detect the GPS unit.

I don't have a way to tell if it's the GPS unit or something on the
computer. 

I've configured the GPS unit by going to the Configuration >
Communication > Port A page and selecting NMEA.  Also, I verified that
the GPS had a solid fix before testing.  Is there anything else that
needs to be done to tell the GPS unit to send the data aside from
configuring the port?

Have any of you tried this with one of these units before?  This may be
going back a way. 

Thanks, 
David 

David Wheelock     Application Specialist     david at oda.state.ok.us 

Oklahoma Department of Agriculture, Food and Forestry
2800 North Lincoln Boulevard
Oklahoma City, OK 73105-4298
Phone: (405) 522-5477 FAX: (405) 522-3590
http://www.oda.state.ok.us <http://www.oda.state.ok.us>  

"We are usually convinced more easily by reasons we have found
ourselves, 
than by those which have occurred to others." 
Pascal <http://en.wikipedia.org/wiki/Blaise_Pascal>  

-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://gis.ou.edu/pipermail/okgis/attachments/20080410/5b88806a/attachment.htm