Specification:
Brand: Beitian
Model: BQ-250
Item Name: GPS Integrated Module
Chip: AT6668B

Frequency Bands: BDS-B1I, BDS-B1C
Work Mode: BDS
Signal Tracking Sensitivity: -161dBm
Reacquisition Sensitivity: -158dBm
Cold Start Sensitivity: -148dBm
Hot Start Sensitivity: -155dBm
Horizontal Positioning Accuracy: <2m (CEP50)
Speed Accuracy: <0.1m/s (1σ)
1PPS Time Accuracy: RMS 20ns
Cold Start: ≤23s
Hot Start: ≤1s
Reacquisition Time: ≤1s
Serial Port Baud Rate: 115200bps
Output Level: TTL
Output Protocol: NMEA
Update Rate: 1Hz
Flash Memory: Supported
Clock Pulse Output Frequency: 0.25Hz to 10MHz
Altitude Limit: 18,000m
Speed Limit: 515m/s
Input Voltage: DC 3.6V~5.5V, Typical: 5.0V
Current Consumption: 35mA/5.0V
Physical Size: 25 x 25 x 8.1mm
Weight: 13g
Connector: 1.00 pitch 4PIN Connector
Operating Temperature: -40°C to +85°C
Storage Temperature: -40°C to +90°C
TX indicator: The blue light flashes when powered on, indicating data output.
PPS indicator: The light is off when not positioned; it starts flashing after 3D positioning

Internal Compass: None

Package Included:
1 x BQ-250 GPS Integrated Module