unicore UM981 - Page 9

UM981 User Manual
4 Introduction UC-00-M33 EN R1.0
B2I/B2a/B2b/L5/G3/E5a/E5b
Carrier Phase
1 mm
1 mm
1 mm
1 mm
Time Pulse Accuracy (RMS)
20 ns
Velocity Accuracy
3
(RMS)
0.03 m/s
Time to First Fix
4
(TTFF)
Cold Start < 12 s
Hot Start < 4 s
Initialization Time
1
< 5 s (Typical)
Initialization Reliability
1
> 99.9%
Data Update Rate
5
100 Hz IMU raw data output
50 Hz RTK positioning result output
Differential Data
RTCM 3.X
Data Format
NMEA-0183, Unicore
Physical Characteristics
Package
54 pin LGA
Dimensions
22 mm × 17 mm × 2.6 mm
Weight
1.91 g ± 0.03 g
Environmental Specifications
Operating Temperature
-40 °C ~ +85 °C
Storage Temperature
-55 °C ~ +95 °C
Humidity
95% No condensation
Vibration
GJB150.16A-2009, MIL-STD-810F
Shock
GJB150.18A-2009, MIL-STD-810F
3
Open sky, unobstructed scene, 99% @ static
4
-130dBm @ more than 12 available satellites
5
The 50 Hz data update rate is supported after firmware upgrade