丨 Product Introduction
1. Advanced chip technology: based on UM980 series, using Nebula IV ™ RF baseband and GNSS SoC chip.
2. Multi system compatibility: It can receive signals from multiple satellite navigation systems such as BDS and GPS, improving coverage and positioning accuracy.
3. Fast positioning: Real time RTK initialization, achieving high-precision positioning in seconds and adapting to complex environments.
4. Strong anti-interference ability: Independently tracking satellite frequencies, 60 dB narrowband anti-interference, ensuring accurate positioning in complex environments.
丨 Specification parameters
|
Chip
characteristics
|
chip
|
UM980
|
|
working frequency
|
BDS: B1I B2I B3I B1C B2a B2b
GPS: L1 C/A L1C L2P (Y) L2C L5
GLONASS: L1 L2
Galileo: E1 E5a E5b E6
QZSS: L1 L2 L5 L6
|
|
Receiving channel
|
1408 channel
|
|
Accuracy
|
Single point positioning (RMS)
|
Plane: 1.5m
|
|
Elevation: 2.5m
|
|
DGPS(RMS)
|
Plane: 0.4m
|
|
Elevation: 0.8m
|
|
RTK(RMS)
|
Flat: 0.8cm+1ppm
|
|
Elevation: 1.5cm+1ppm
|
|
Observation accuracy (RMS)
|
BDS
|
GPS
|
GLONASS
|
Galileo
|
|
B1I/B1C/L1C/L1 C/A/E1/G1 pseudorange
|
10cm
|
10cm
|
10cm
|
10cm
|
|
B1I/B1C/L1C/L1 C/A/E1/G1 Carrier Phase
|
1mm
|
1mm
|
1mm
|
1mm
|
|
B3I/L2P(Y)/L2C/G2 pseudorange
|
10cm
|
10cm
|
10cm
|
10cm
|
|
B3I/L2P(Y)/L2C/G2
Carrier Phase
|
1mm
|
1mm
|
1mm
|
1mm
|
|
B2I/B2a/ B2b/L5/E5a/E5b pseudorange
|
10cm
|
10cm
|
10cm
|
10cm
|
|
B2I/B2a/ B2b/L5/E5a/E5b Carrier Phase
|
1mm
|
1mm
|
1mm
|
1mm
|
|
Time accuracy (RMS)
|
10 ns
|
|
Speed accuracy (RMS)
|
0.03 m/s
|
|
Start Time
|
cold boot
|
< 10 s
|
|
Initialization time
|
<5s (typical value)
|
|
Initialize reliability
|
> 99.9%
|
|
Output data
|
Baud rate
|
115200bps (default) [Optional: 4800-921600]
|
|
Output interface
|
TTL
|
|
Output Protocol
|
NMEA0183、RTCM 3.3
|
|
update frequency
|
1Hz-20Hz (default 1Hz)
|
|
Differential
data
|
Differential data
|
RTCM 3.3/3.2/3.1/3.0
|
|
Carrier phase output
|
Support, output RAWX statement
|
|
FLASH
|
built-in
|
|
Electrical
specifications
|
working voltage
|
5V DC
|
|
power waste
|
800mW
|
|
Physical
parameters
|
size
|
36.58*25.66*7.6mm
|
|
weight
|
5.6g
|
|
Connector
|
USB/Pin connector*12
|
|
Antenna connector
|
MMCX
|
|
Environment
|
working temperature
|
-35℃-80℃
|
|
Storage temperature
|
-40℃-95℃
|
丨 product mix

Table 1 PIN Functionality
|
NO.
|
Signal name
|
Signal Description
|
|
1
|
PPS
|
Second pulse
|
|
2
|
VCC
|
Power input, DC+5V
|
|
3
|
RX1
|
Serial port 1 data input
|
|
4
|
TX1
|
Serial port 1 data output
|
|
5
|
GND
|
Grounding
|
|
6
|
EN
|
High level enable pin
|
|
7
|
PPS
|
Second pulse
|
|
8
|
VCC
|
Power input, DC+5V
|
|
9
|
RX2
|
Serial port 2 data input
|
|
10
|
TX2
|
Serial port 2 data output
|
|
11
|
GND
|
Grounding
|
|
12
|
EN
|
High level enable pin
|
|
13
|
TYPE-C
|
COM3 output interface
|