We have been looking around for a GPS module that works with the USB interface on an RB433UAH. We found one that works well at a reasonable price:
http://www.thegpsstore.com/USGlobalSat- ... P1483.aspx
The issue I now have is finding an enclosure that has approximately 3 inches of space on the top of the enclosure or the flat panel to mount the GPS device. I have also been looking for an enclosure that has some sort of cooling fins built into the enclosure to help passively radiate heat in extreme environments. Any help would be greatly appreciated.