GPS Chipset SiRF Star III LPx
Frequency L1, 1575.42 MHz
C/A code 1.023 MHz chip rate
Channels 20 channel all-in-view tracking
Antenna Type Built-in patch antenna
Position
10 meters, 2D RMS
5 meters, 2D RMS, WAAS enabled
Velocity 0.1 m/s
Time 1 us synchronized to GPS time
Default datum WGS-84
Reacquisition 0.1 sec., average
Hot start 1 sec., average
Warm start 38 sec., average
Cold start 42 sec., average
Altitude 18,000 meters (60,000 feet) max.
Velocity 515 meters/ second (1000 knots) max.
Acceleration Less than 4g
Jerk 20 m/sec3
Operating Voltage 2.4V~3.6V
Oscillator Crystal 32.768KHz
Standby current <0.5 uA

(HRM Receiver on PCBA)
Operating current <15 uA (without external circuit)
Operating Voltage 2.4V~3.6V
Oscillator Crystal 32.768KHz
Standby current <0.5 uA
Operating current <100 uA
Transmission current <6 mA
Battery life 1300 hours
Battery type CR2032
Transmission frequency 5 KHz
Transmission distance >0.8 meter
Transmission signal type Analog signal without coded

(HRM Chest-belt)
Transmission time 20 ms