SJ-301 Module specification
10 SiRFstar III SJ-301 V1 8. Serial Interface The SJ-301 GPS receivers provide two serial ports. All serial interface signals (Port A:TxA RxA Port B:TxB RxB operate on 3.3V CMOS ) Baud Rate Comments 1200 NMEA,suitable for RMC message only 2400 ......