"...Instead of using GPS satellites as beacon platforms, Rosum uses existing, land-based broadcast television antennas. Most television stations today broadcast a precise, time-based "ghost canceling reference" signal, which is used to clean up multipath distortion. Rosum's system tracks which GCRs come from where; handsets record when they receive several GCRs and process this information to triangulate location..."
<http://www.catchoday.com/> <http://www.rosum.com/> cheers. -- erik wingren | +1.415.244.8816 www.basho.com | [EMAIL PROTECTED] -- general wireless list, a bawug thing <http://www.bawug.org/> [un]subscribe: http://lists.bawug.org/mailman/listinfo/wireless
