Circuit Falcom FSA03 Smart Antenna with uBlox 5 GPS Chipset

The Falcom FSA03 GPS module is an extremely cost effective GPS solution for embedded systems. Retailing for about $50 USD in small quantities, the FSA03 includes an uBlox 5 single chip GPS module integrated with a Sarantel quadrifilar helix antenna to make a tidy single board solution. Official documentation from Falcom indicates the FSA03 has an asynchronous 3.3V serial port for communications using NMEA or UBX binary protocols, a time pulse output and reset input. What the official documentation doesn't indicate is that a USB port and external interrupt pin is routed out but recorded as N.C. (not connected) on the documentation.