Globalsat Navigation antenna BU353 USB GPS Receiver Chipset SIRF Star III
GPS Protocol Default: NMEA 0183 (Secondary: SiRF binary)
GPS Output Data
SiRF binary >> position, velocity, altitude, status and control
Supports NMEA0183 V2.2 protocol, and supports command: GGA, GSA, GSV, RMC, VTG, GLL v2.2 (VTG and GLL are optional)
GPS transfer rate Software command setting (Default : 4800,n,8,1 for NMEA )
I have tried this USB GPS for a time source, it worked really well. Due to my location I was losing satellite signal during part of the day. Very reasonable price on eBay. I use tardis software to control the time synchronisation / clock drift.
