... Chipset:SiRF star IIl 2.Cold Start Time < 48sec. GPS tracking module with Low Price, High Performance, International Approvals, Prompt Delivery, ... : 1).Two full duplex serial communication, TTL interface, with user selectable baud rate (4800,9600,19200,38400,57600)- ... reference At the pulse positive edge 4).Measurements Aligned to GPS second, ±1 microsecond 12.Environmental Characteristics: 1). ...