3
2. Technical Specifications
2.1. Electrical Characteristics
2.1.1 General
Frequency L1, 1575.42 MHz
C/A code 1.023 MHz chip rate
Channels 16
2.1.2 Sensitivity
Tracking -152dBm typ
Acquisition -139dBm typ
2.1.3 Accuracy
Position 7 meters CEP (90%) horizontal, SA off.
Velocity 0.1 meters/second
Time 1 microsecond synchronized to GPS time
2.1.4 Datum
Default WGS-84
Other Support different datum by request
2.1.5 Acquisition Rate (Open sky, stationary requirements)
Hot start 12 sec, average
Warm start 38 sec, average
Cold start 60 sec, average
2.1.6 Dynamic Conditions
Altitude 10,000 meters max
Horizontal Velocity 300 kilometers/hour max
Vertical Velocity 36 kilometers/hour max
Acceleration 2g, max
Jerk 4 meters/second
3
, max
2.1.7 Power
Main power input 3.3 ±5% VDC input.
Supply Current ZX4125 27 mA @ 3.3V(Continuous mode)
ZX4125P 33 mA @ 3.3V (Continuous mode) including LNA
