丨 Product Introduction Our company's AK737, a GNSS receiver made of mosaic-G5 chip module, has excellent performance and can simultaneously receive signals from multiple satellite systems such as GPS, Beidou, GLONASS, etc., achieving centimeter level or even higher precision positioning. It has advanced algorithms built-in, which can effectively deal with complex environmental interference, high data update rate, and can output accurate position and speed information in real time.
characteristic:
Multi system compatibility: supports global satellite systems such as Beidou and GPS, and achieves high-precision joint positioning.
Centimeter level accuracy: RTK technology achieves horizontal accuracy of 0.6cm+0.5ppm, vertical accuracy of 1cm+1ppm, and speed measurement of 3cm/s.
20Hz high update rate: fast response to dynamic scenes, strong real-time performance.
Dual mode flexible configuration: can be set as a base station or a mobile station.
Wide compatibility: compatible with flight control systems such as Pixhawk and APM, easy to integrate.
Low noise design: Industrial grade RF circuit to improve signal reception quality.
丨 Specification parameters
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Picture
Parameter
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Product name
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AK712
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AK712RM
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AK717
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AK973T
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Chip
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UBX-F9P
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UBX-F9P
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UBX ZED-F9P
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UM960
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Operating Frequency
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BDS: B1 B2
GPS: L1 L2
GLONASS: L1 L2
GALILEO:E1E2
QZSS: L1 L2
SBAS:
WASS,EGNOS,MSAS
|
BDS: B1 B2
GPS: L1 L2
GLONASS: L1 L2
GALILEO: E1 E2
QZSS: L1 L2
SBAS:
WASS,EGNOS,MSAS
|
GPS: L1, L2；
BDS: B1I, B2I；
GLONASS: L1, L2；
Galileo: E1, E5b；
QZSS :L1 L2
SBAS:
WASS, EGNOS, MSAS
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BDS: B1I、B2I、B3I、B1C、B2a
GPS: L1C/A、L2P(W)、L2C、L5
GLONASS: L1C/A、L2C/A
Galileo: E1、E5b、E5a
QZSS: L1、L2、L5
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Receiving channel
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184
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184
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184
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1408
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Cold start
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26s
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26s
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26s
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< 30 s
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Hot start
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2s
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2s
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2s
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/
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Re capture
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2s
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2s
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2s
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/
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Initialization Time
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<5s (typical value)
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<5s (typical value)
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<5s (typical value)
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<5s (typical value)
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Horizontal Accuracy
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Normal positioning: 1.5m CEP
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Normal positioning: 1.5m CEP
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Normal positioning: 1.5m CEP
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Normal positioning:1.5m CEP
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RTK positioning: 0.01cm+1 ppm CEP
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RTK positioning: 0.01cm+1 ppm CEP
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RTK positioning: 0.01cm+1 ppm CEP
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RTK positioning: 0.8cm+ 1.5 ppm
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|
Speed accuracy
|
＜0.05m/s
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＜0.05m/s
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＜0.05m/s
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0.0 3m/s
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Time accuracy
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30ns
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30ns
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30ns
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20ns
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Convergence time
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≤10s
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≤10s
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≤10s
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/
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Baud rate
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38400bps(Default)
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38400bps(Default)
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38400bps(Default)
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115200bps(Default)
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Output interface
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TTL
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TTL
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TTL
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TTL
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Output Protocol
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NMEA0183，RTCM 3.3，UBX
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NMEA0183，RTCM 3.3，UBX
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NMEA0183，RTCM 3.3，UBX
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NMEA 0183, Unicore*
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Differential Data
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RTCM 3.x
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RTCM 3.3/3.2/3.1/3.0
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RTCM 3.x
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RTCM 3.x
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Update frequency
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Default 1Hz ( 0.25Hz-10Hz)
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Default 1Hz ( 0.25Hz-10Hz)
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Default 1Hz ( 0.25Hz-10Hz)
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Default 1Hz ( 0.25Hz-20Hz)
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Carrier phase output
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Support, output RAWX statement
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Support, output RAWX statement
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Support, output RAWX statement
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Support, output RAWX statement
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FLASH
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built-in
|
built-in
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built-in
|
built-in
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Working voltage
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3V-5.5V DC
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3V-5.5V DC
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3.3-5.5V DC
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5V DC
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Power consumption
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＜180mW @3.3V
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＜180mW @3.3V
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＜180mW @3.3V
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800mW
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Size
|
Φ44*40.6mm
|
Φ44*40.6mm
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Φ44*40.6mm
|
Φ44*40.6mm
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|
Weight
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21g
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21g |
21g |
21g |
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Joint
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GH1.25mm 8pin
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GH1.25mm 8pin
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GH1.25mm 6pin
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GH1.25mm 8pin
|
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Operation temperature
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-35℃+80℃
|
-35℃+80℃
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-35℃+80℃
|
-35℃+80℃
|
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Storage temperature
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-40℃-+85℃
|
-40℃-+85℃
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-40℃-+85℃
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-40℃-+85℃
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Compass
|
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Built in with electronic compass RM3100
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Built in with electronic compass ist8310
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Built in with electronic compass ist8310
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Picture
Parameter
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Product name
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AK713
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AK713T
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AK713RM
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AK713CAN
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chip
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UM980
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UM980
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UM980
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UM980
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Operating Frequency
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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
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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
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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
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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
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|
Receiving channel
|
1408
|
1408
|
1408
|
1408
|
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Cold start
|
＜10s
|
＜10s
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＜10s
|
＜10s
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Initialization time
|
＜5s (Typical value)
|
＜5s(Typical value)
|
＜5s(Typical value)
|
＜5s(Typical value)
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Horizontal Accuracy
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Normal positioning: 1.5m CEP
|
Normal positioning: 1.5m CEP
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Normal positioning: 1.5m CEP
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Normal positioning: 1.5m CEP
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RTK positioning: 0.8cm+1 ppm CEP
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RTK positioning: 0.8cm+1 ppm CEP
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RTK positioning: 0.8cm+1 ppm CEP
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RTK positioning: 0.8cm+1 ppm CEP
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Speed accuracy
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0.03m/s
|
0.03m/s
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0.03m/s
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0.03m/s
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Time accuracy
|
10ns
|
10ns
|
10ns
|
10ns
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Baud rate
|
115200bps(Default)
|
115200bps(Default)
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115200bps(Default)
|
1Mbps
|
|
Output interface
|
TTL
|
TTL
|
TTL
|
TTL
|
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Output Protocol
|
NMEA0183、RTCM 3.3
|
NMEA0183、RTCM 3.3
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NMEA0183、RTCM 3.3
|
DroneCAN/UAVCAN
|
|
Differential Data
|
RTCM 3.x
|
RTCM 3.x
|
RTCM 3.x
|
RTCM 3.3 / 3.2 / 3.1 / 3.0 (RTCM data input only supported via UART2)
|
|
Update frequency
|
Default 1Hz（0.25Hz-20Hz）
|
Default 1Hz（0.25Hz-20Hz）
|
Default 1Hz（0.25Hz-20Hz）
|
Default 1Hz（0.25Hz-20Hz）
|
|
Carrier phase output
|
Support, output RAWX statement
|
Support, output RAWX statement
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Support, output RAWX statement
|
Support, output RAWX statement
|
|
FLASH
|
built-in
|
built-in
|
built-in
|
built-in
|
|
Working voltage
|
3V-5.5V DC
|
3V-5.5V DC
|
3V-5.5V DC
|
5V DC
|
|
Power consumption
|
800mW
|
800mW
|
800mW
|
800mW
|
|
Size
|
Φ44*40.6mm
|
Φ44*40.6mm
|
Φ44*40.6mm
|
Φ44*40.6mm
|
|
Weight
|
21g |
21g |
21g |
21g |
|
Joint
|
GH1.25mm 8pin
|
GH1.25mm 8pin
|
GH1.25mm 8pin
|
GH1.25mm 8pin
|
|
Operation temperature
|
-35℃-80℃
|
-35℃-80℃
|
-35℃-80℃
|
-35℃-80℃
|
|
Storage temperature
|
-40℃-95℃
|
-40℃-95℃
|
-40℃-95℃
|
-40℃-95℃
|
|
Compass
|
/
|
Built in electronic compass IST8310
|
Built in electronic compass RM3100
|
Built in electronic compass RM3100
|
|
Picture
Parameter
|
|
|
|
|
|
Product model
|
AK714
|
AK714T
|
AK724
|
AK734
|
|
chip
|
Beiyun M20
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Beiyun M20
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Beiyun M21
|
Beiyun M22
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Operating Frequency
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BDS：B1l、 B2l、B3l、B1C、B2a、B2b
GPS：L1 C/A、L1C、L2、L5
GLO：G1、G2
GAL：E1、E5a、E5b、E6
QZSS：L1 C/A、L1C、L2、L5、L6 (CLAS)
NavlC：L5
SBAS*：L1 C/A
|
BDS：B1l、 B2l、B3l、B1C、B2a、B2b
GPS：L1 C/A、L1C、L2、L5
GLO：G1、G2
GAL：E1、E5a、E5b、E6
QZSS：L1 C/A、L1C、L2、L5、L6 (CLAS)
NavlC：L5
SBAS*：L1 C/A
|
BDS-2: B1I/B2I/B3I
BDS-3：B1C*/B2a/B2b(PPP)*/B3I
GPS: L1 C/A/L1C*/L2/L5
GLONASS: G1/G2
Galileo: E1/E5a/E5b/E6(HAS)*
QZSS: L1C/A/L1C/L2/L5、L6(CLAS)*
NavIC: L5
SBAS*:L1C/A
|
BDS-2: B1I/B2I/B3I
BDS-3：B1C*/B2a/B2b(PPP)*/B3I
GPS: L1 C/A/L1C*/L2/L5
GLONASS: G1/G2
Galileo: E1/E5a/E5b/E6(HAS)*
QZSS: L1C/A/L1C/L2/L5、L6(CLAS)*
NavIC: L5
SBAS*:L1C/A
|
|
Receiving channel
|
1507
|
1507
|
1507
|
1507
|
|
cold start
|
≤30s
|
≤30s
|
30s
|
30s
|
|
hot start
|
≤5s
|
≤5s
|
5s
|
5s
|
|
Re capture
|
≤1s
|
≤1s
|
≤1s
|
≤1s
|
|
Horizontal Accuracy
|
Normal positioning: 1.5mCEP
|
Normal positioning: 1.5mCEP
|
Single point: 1.5m
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Single point: 1.5m
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|
RTK positioning: 0.01m+1ppmCEP
|
RTK positioning: 0.01m+1ppmCEP
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RTK:0.01m + 1ppm
|
RTK:0.01m + 1ppm
|
|
speed accuracy
|
0.03m/s
|
0.03m/s
|
0.03m/s
|
0.03m/s
|
|
Second pulse accuracy
|
≤20ns
|
≤20ns
|
≤ 20 ns
|
≤ 20 ns
|
|
Inertial Navigation Type
|
/
|
/
|
Single inertial navigation system
|
Dual inertial navigation system
|
|
gyroscope
(Range)
|
/
|
/
|
±300°/s
|
±300°/s
|
|
gyroscope
(Zero bias instability)
|
/
|
/
|
5°/h
|
5°/h
|
|
gyroscope
(Scale error)
|
/
|
/
|
4‰
|
4‰
|
|
accelerometer
(Range)
|
/
|
/
|
± 16g
|
± 16g
|
|
accelerometer
(Zero bias instability)
|
/
|
/
|
50μg
|
50μg
|
|
accelerometer
(Scale error)
|
/
|
/
|
2‰
|
2‰
|
|
accelerometer
(System functional safety)
|
/
|
/
|
ASIL B
|
ASIL B
|
|
Baud rate
|
115200bps (default)
|
115200bps (default)
|
115200bps (default)
|
115200bps (default)
|
|
output interface
|
TTL
|
TTL
|
TTL
|
TTL
|
|
Output Protocol
|
NMEA,RTCM3.3, BYNAV
|
NMEA,RTCM3.3, BYNAV
|
NMEA0183、RTCM 3.3
|
NMEA0183、RTCM 3.3
|
|
Differential Data
|
RTCM 3.x
|
RTCM 3.x
|
RTCM 3.x
|
RTCM 3.x
|
|
Data update frequency
|
Default 1Hz (0.25Hz-10Hz)
|
Default 1Hz (0.25Hz-10Hz)
|
Default 1Hz (0.25Hz-10Hz)
|
Default 1Hz (0.25Hz-10Hz)
|
|
Carrier phase output
|
Support, output RAWX statement
|
Support, output RAWX statement
|
Support, output RAWX statement
|
Support, output RAWX statement
|
|
FLASH
|
built-in
|
built-in
|
built-in
|
built-in
|
|
working voltage
|
3V~5.5V DC
|
3V~5.5V DC
|
3V~5.5V DC
|
3V~5.5V DC
|
|
power consumption
|
＜800mW@3.3V
|
＜800mW@3.3V
|
＜800mW@3.3V
|
＜800mW@3.3V
|
|
size
|
Φ44*40.6mm
|
Φ44*40.6mm
|
Φ44*40.6mm
|
Φ44*40.6mm
|
|
weight
|
21g |
21g |
21g |
21g |
|
interface
|
GH1.25mm 8pin
|
GH1.25mm 8pin
|
GH1.25mm 8pin
|
GH1.25mm 8pin
|
|
operation temperature
|
-40℃-85℃
|
-40℃-85℃
|
-40℃-85℃
|
-40℃-85℃
|
|
storage temperature
|
-40℃-85℃
|
-40℃-85℃
|
-40℃-85℃
|
-40℃-85℃
|
|
compass
|
/
|
Built in electronic compass IST8310
|
/
|
/
|
|
picture
parameter
|
|
|
|
|
model
|
AK723T
|
AK723RM
|
AK737
|
|
chip
|
UM981
|
UM981
|
Septentrio_mosaic-G5
|
|
Operating 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
NavIC L5
SBAS L1C/A
|
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
NavIC L5
SBAS L1C/A
|
GPS: L1C/A, L1C, L2C，L2PY, L5
GLONASS: L1C/A, L2CA, L2P, L3 CDMA
BDS: B1I, B1C, B2a, B2I,B2b, B3I
Galileo: E1, E5a, E5b, E6
QZSS: L1C/A, L1C/B, L2C, L5,L6
|
|
working channel
|
1408
|
1408
|
789 channels (synchronized tracking across all constellations)
|
|
cold start
|
26s
|
26s
|
＜35s
|
|
hot start
|
2s
|
2s
|
＜10s
|
|
Re capture
|
2s
|
2s
|
<1s
|
|
Inertial navigation accuracy
|
<5% x driving distance (no GNSS signal)
|
<5% x driving distance (no GNSS signal)
|
/
|
|
Horizontal Accuracy
|
Normal positioning: 1.5m CEP
|
Normal positioning: 1.5m CEP
|
Normal positioning: 1.2m CEP
|
|
RTK positioning: 0.08m+1 ppm CEP
|
RTK positioning: 0.08m+1 ppm CEP
|
RTK positioning: 0.06m+0.5 ppm CEP
|
|
GNSS attitude accuracy
|
/
|
/
|
When the antenna spacing is 1 meter: heading accuracy is 0.15 °, roll/pitch accuracy is 0.25 °
When the antenna spacing is 5 meters: heading accuracy is 0.03 °, roll/pitch accuracy is 0.05 °
|
|
speed accuracy
|
0.05m/s
|
0.05m/s
|
0.03m/s
|
|
time accuracy
|
30ns
|
30ns
|
PPS resolution: 1.4ns
|
|
Baud rate
|
115200bps (default)
|
115200bps (default)
|
115200bps (default)
|
|
output interface
|
TTL
|
TTL
|
TTL
|
|
Output Protocol
|
NMEA0183、Unicore
|
NMEA0183、Unicore
|
NMEA 0183, v2.3, v3.03, V4.0
|
|
Differential Data
|
RTCM 3.x
|
RTCM 3.x
|
RTCM 3.x
|
|
Data update rate
|
Default 1Hz (0.25Hz-50Hz)
|
Default 1Hz (0.25Hz-50Hz)
|
Default 1Hz (1Hz-20Hz)
|
|
Carrier phase output
|
Support, output RAWX statement
|
Support, output RAWX statement
|
Support, output RAWX statement
|
|
FLASH
|
built-in
|
built-in
|
built-in
|
|
working voltage
|
3V-5.5V DC
|
3V-5.5V DC
|
3V-5.5V DC
|
|
power consumption
|
＜800mW@3.3V
|
＜800mW@3.3V
|
＜800mW@3.3V
|
|
size
|
Φ44*40.6mm
|
Φ44*40.6mm
|
Φ44*40.6mm
|
|
weight
|
21g |
21g |
21g |
|
interface
|
GH1.25mm 8pin
|
GH1.25mm 8pin
|
GH1.25mm 8pin
|
|
operation temperature
|
-40℃-85℃
|
-40℃-85℃
|
-40℃-85℃
|
|
storage temperature
|
-40℃-95℃
|
-40℃-95℃
|
-40℃-95℃
|
|
compass
|
Built in electronic compass IST8310
|
Built in electronic compass RM3100
|
Built in electronic compass IST8310
|
Table 1: Definition of 6PIN pins
|
NO.
|
Signal Name
|
Signal Description
|
|
1
|
VCC
|
Main power supply input, +3.3V to +5V
|
|
2
|
GND
|
Module ground, this is the negative end of the power supply or the common ground point, used to complete the power circuit.
|
|
3
|
TX
|
Transmit - This pin is used in serial communication to send data to another device.
|
|
4
|
RX
|
Receive - This pin is used in serial communication to receive data from another device.
|
|
5
|
SCL
|
Serial Clock - In the I²C communication protocol, this is the clock signal line used to synchronize data transmission.
|
|
6
|
SDA
|
Serial Data - In the I²C communication protocol, this is the line used for data transmission.
|
|
Note: Typically, VCC and GND are used for power supply, TX and RX are used for serial communication, while SCL and SDA are used for I²C communication. These interfaces allow the receiver to exchange power supply and data with external devices.
|
Table 2: Definition of 8PIN pins
|
No.
|
Signal Name
|
Signal Description
|
|
1
|
VCC
|
Main power input, +3.3V to 5V
|
|
2
|
GND
|
Module ground
|
|
3
|
TX1
|
UART1 output, 3.3V TTL
|
|
4
|
RX1
|
UART1 input, 3.3V TTL
|
|
5
|
TX2
|
UART2 output, 3.3V TTL
|
|
6
|
RX2
|
UART2 input, 3.3V TTL
|
|
7
|
PPS
|
Pulse Per Second output for time synchronization
|
|
8
|
EVENT
|
Module external terminal output (default off)
|
Table 3: Definition of 8PIN pins
|
Serial Number
|
Pin Definition
|
describe
|
|
1
|
VCC
|
Main power input+ 3.3V~5V
|
|
2
|
GND
|
Module grounding
|
|
3
|
TX1
|
Serial port 1 sends data, 3.3VTTL
|
|
4
|
RX1
|
Serial port 1 receives data, 3.3VTTL
|
|
5
|
SCL
|
I ² C serial clock(IST8310/RM3100)
|
|
6
|
SDA
|
I ² C serial data(IST8310/RM3100)
|
|
7
|
TX2
|
Serial port 2 sends data, 3.3VTTL
|
|
8
|
RX2
|
Serial port 2 receives data, 3.3VTTL
|
Table4： PIN Function
|
Pin Number
|
Signal Name
|
Signal Description
|
|
1
|
VCC
|
Main power input,+ 5V
|
|
2
|
RXD1
|
Receive data port 1, 3.3VTTL
|
|
3
|
TXD1
|
Send data port 1, 3.3VTTL
|
|
4
|
SCL
|
I ² C Serial Clock (IST8310)
|
|
5
|
SDA
|
I ² C Serial Data (IST8310)
|
|
6
|
RXD2
|
Receive data port 2, 3.3VTTL
|
|
7
|
TXD2
|
Send data port 2, 3.3VTTL
|
|
8
|
GND
|
Grounding
|
About Us：
DALANG is a dedicated manufacturer of high-performance GNSS modules and RTK positioning solutions, serving industries such as UAV navigation, precision agriculture, and geospatial mapping. With a clear focus on accuracy, reliability, and integration flexibility, we support both standard and custom applications across global markets. Our product lines are engineered to meet the evolving demands of real-time positioning with support for multiple GNSS constellations, including GPS, GLONASS, BDS, and Galileo.
Our production facility spans 2,500㎡ and includes advanced SMT lines, in-house R&D labs, and full functional testing for every unit shipped. With a team of 30+ GNSS engineers, we design and manufacture over 200,000 GNSS receivers and modules annually. Certified to ISO9001:2015, and compliant with CE and RoHS standards, we follow a strict quality assurance process from prototyping through mass production. We also provide firmware updates, system integration support, and full lifecycle product documentation.
Trusted by partners in over 30 countries, DALANG delivers fast, scalable manufacturing with personalized technical support. Our streamlined collaboration model—covering inquiry, consultation, prototyping, and delivery—ensures efficiency from first contact to deployment. Whether you're sourcing off-the-shelf GNSS hardware or launching a customized solution, DALANG is your dependable partner for accurate, cost-effective positioning systems.
FAQ：
1. Who are we?
We are DALANG, a specialized manufacturer of GNSS modules and RTK positioning systems based in China, with a focus on high-precision solutions for UAVs, surveying, and smart agriculture.
2. How can we guarantee quality?
All products undergo strict multi-stage quality control, including SMT production, functional testing, and 100% final inspection. We are ISO9001:2015 certified and follow international compliance standards such as CE and RoHS.
3. What can you buy from us?
You can purchase GNSS receivers, RTK modules, base stations, antennas, flight control positioning systems, and other GNSS-related components and accessories.
4. Why should you buy from us not from other suppliers?
We combine strong in-house R&D, flexible OEM/ODM support, industrial-grade quality assurance, and fast global delivery. Our expertise in GNSS RTK ensures stable, accurate, and scalable solutions tailored to your specific use case.
5. What services can we provide?
We offer OEM/ODM customization, technical consulting, firmware support, prototyping, and global after-sales service. Our team works closely with international clients to ensure efficient communication and long-term support.
