GPS receiver module of high Performance, Low Price 1.Chipset ... 3.Size: 20.0*24.3*3.0mm GPS receiver module with Low Price, High Performance, International Approvals, Prompt ... -159dBm10.Serial Port: 1).Two full duplex serial communication, TTL interface, with user selectable baud rate (4800,9600,19200 ... , status output 11.TIMEMARK-1PPS Pulse: 1).Level TTL 2).Pulse duration 1us 3).Time reference At the ...