shrug-l: GPS-Denied Geolocation and Navigation

Jim Robeson jim at
Fri May 8 18:09:27 EDT 2009

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Jim Robeson



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From: shrug-l-bounces at
[mailto:shrug-l-bounces at] On Behalf Of Hancock, Eric
Sent: Friday, May 08, 2009 2:45 PM
To: shrug-l at
Subject: RE: shrug-l: GPS-Denied Geolocation and Navigation




This technology is call APRS (Automatic Position Reporting System). I've
seen several small scale radio/gps receivers made by Motorola for this.  I'm
sure there are other solutions out there as well. I've built a few
OpenTracker+ radio modems from kit to do this as well, but this is more of a
hobby (Hamradio) then a commercial thing.


Eric Hancock




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From: shrug-l-bounces at
[mailto:shrug-l-bounces at] On Behalf Of Sandell, Keith
Sent: Wednesday, April 29, 2009 10:56 AM
To: shrug-l at
Subject: shrug-l: GPS-Denied Geolocation and Navigation


Hey Shruggers,


Anybody out there have experience with or know of any purpose built tracking
products that locate and transmit "GPS" coordinates?


I'm looking for small, light-weight devices that a user can wear that
continuously transmits their location via radio frequency, without
interaction from the user, that can be integrated with a GIS for near
real-time data modeling.


Thanks for any thoughts.


Keith Sandell

Florida Department of Corrections



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