Any chance of a SiRF Star III GPS module (which seem to be the best there are) that includes an accurate pulse-per-second output?
OK - the EM-406A seems to do the trick!
There is a comparison chart of the US Global Sat modules at http://www.usglobalsat.com/engineboard_ … _comp.html
The EM-318-01 looks nice - built-in patch antenna, external antenna port, PPS etc, though no capacitor back-up (plug in your own supercap?). The only thing I’m not sure about is the SiRF GSC3f/LP - is that better or worse than the SirF Star III?