Specifications
GNSS Systems: GPS + GLONASS
Receiver Channels: 66 acquisition, 22 tracking
Sensitivity:
Acquisition: –148 dBm
Tracking: –165 dBm
Reacquisition: –160 dBm
Position Accuracy: <2.5 m CEP
Time-to-First-Fix (TTFF):
Cold start: <35 s (typically <15 s with AGPS)
Warm start: <30 s (typically <5 s)
Hot start: <1 s
1PPS Timing Accuracy: ±10 ns
SBAS Support: WAAS, EGNOS, MSAS, GAGAN
Environmental Range:
Operating: –40 °C to +85 °C
Storage: –45 °C to +125 °C
Limits: Altitude ≤18,000 m, Velocity ≤515 m/s, Acceleration ≤4 g
Interface: UART (3 V CMOS, 4,800–115,200 baud)
Protocol: NMEA 0183 + PMTK
Power Supply: 3.0–4.3 V (nominal 3.3 V)
Power Consumption (nominal at 3.3 V):
Cold Acquisition: ~25 mA
Tracking: ~20 mA
AlwaysLocate mode: ~3 mA
Backup/Standby: ~1 mA
Backup Domain: ~7 μA
Mechanical Size: 16.0 × 16.0 × 6.45 mm
Weight: ~6 grams
Antenna Port: Automatic switch; supports external active antenna via EX_ANT
Pin Functions: UART TX/RX, 1PPS, RESET, TIMER, Backup power (V_BCKP)
ESD Protection: Up to ±10 kV air discharge on antenna, ±5 kV on digital pins