UAV-1002185-001
17
Rev D
6.7.2
GPS/SBAS Specifications
Characteristics
Specifications
Number of Channels
15 (12 GPS and 3 GPS/SBAS)
Frequency
1575.42 MHz L1, C/A code
Sensitivity
Tracking
Reacquisition
Cold Start
Hot Start
-166dBm
-160dBm
-148dBm
-160dBm
Horizontal position accuracy
6 m RMS with SBAS
Velocity accuracy
0.05 m/s
Heading accuracy
0.3 degrees
TTFF (Time to First Fix)
58 seconds typical with current almanac
and position
Reacquisition
1 second typical
Position update interval
0.2 second (5Hz)
Time Mark
±20 nSec of UTC
Datum
WGS-84
6.7.3
Altitude Encoder Specifications
Characteristics
Specifications
Altitude Range [1]
-1,000 to 18,500 feet
[1] UAT usage is restricted to below 18,000 feet MSL (§91.225).
6.7.4
978MHz UAT Specifications
Characteristics
Specifications
Frequency
978.00 MHz
Transmit Power
44dBm (25 W)
Frequency Tolerance
±10 PPM
Modulation
Continuous phase FSK, h = 0.6, raised
cosine, a = 0.5
Data Rate
1.041667 Mbps
99% Power Bandwidth
1.3 MHz
60dB bandwidth
3.3 MHz