2
1.3
Technical Specifications
Table 1-1 Performance Specifications
Channels
432 channels, based on Nebulas-II SoC
chip
Initialization
time
<5s (typical)
Frequency
GPS L1/L2/L5
BDS B1/B2/B3
GLONASS L1/L2
Galileo E1/E5a/E5b
Initialization
reliability
>99.9%
Single point
positioning
Horizontal
：
1.5m
Time to First
Fix (TTFF)
Cold start<25s
Vertical
：
3.0m
Reacquisition
<1s
DGPS(RMS)
Horizontal
：
0.4m
Correction
RTCM 2.3/3.0 /3.2
Vertical
：
0.8m
RTK(RMS)
Horizontal
：
10mm+1ppm
Data Output
NMEA-0183, Unicore
Binary
Vertical
：
15mm+1ppm
Update Rate
20Hz
Heading
Accuracy (RMS)
0.2 degree@1 m baseline
Time accuracy
(RMS)
20ns
Velocity Accuracy
(RMS)
0.03m/s
Power
Consumption
1.7W
Dimension
30×40×4 mm
Table 1-2 Functional Ports
3x UART, 1xI2C, 1x SPI (LV-TTL)
1x1PPS
（
LV-TTL
）
1x Event input
Note: * represents optional configuration
