Taiwanese maker of GPS modules and whole receivers. Example - "mouse" sized module suited to PDA's etc. http://gps-navigation.taiwansource.com/gps-module/ZX4134.htm 34mm square. Ultra low power where ULP for a GPS is 38 mA at 5v !!!. 50 Hrs on a set of NimH AA. Under 10 hours on 1 x AA. Better than many, but still rather hungry. RM -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist