shrug-l: GPS-Denied Geolocation and Navigation

[Sandell, Keith M.]

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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