• Angled view of Beitian BT-982G1 RTK GNSS board with 2 SMA connectors, USB-C port, and JST sockets
  • Beitian BT-982G1 UM982 RTK GNSS module with dual SMA antenna connectors, shown beside larger board
  • Beitian UM982 GNSS board graphic showing RTK module with dual-antenna configuration
  • Product features infographic for Beitian BT-982G2 RTK GNSS module with size, voltage, and baud rate text
  • Application scenario infographic for Beitian RTK GNSS module showing surveying, agriculture, driverless car, drone
  • Package contents list graphic showing GNSS module, two lockable serial cables, and USB to Type-C cable
  • Product parameter chart for Beitian BT-982G1 RTK GNSS module with 66×45×10.8 mm size and 20 Hz update rate
1 7

Beitian BT-982G1 UM982 RTK GNSS Module, 1408ch BDS/GPS/GLONASS/Galileo/QZSS, 2-SMA-K

Beitian BT-982G1 UM982 RTK GNSS Module, 1408ch BDS/GPS/GLONASS/Galileo/QZSS, 2-SMA-K

Beitian

$226.06 USD
$226.06 USD
Sale Sold out
Taxes included. Shipping calculated at checkout.
Model
  • PayPal
  • Visa
  • Mastercard
  • American Express
  • JCB
  • Discover
  • Diners Club
  • Google Pay
  • Apple Pay
View full details

Overview

The Beitian BT-982 series is an RTK GNSS module platform built around the UM982 chip for full-system, full-frequency high-precision positioning and orientation. The BT-982G1 option is a 1408-channel module (NebulasIV-based) supporting BDS/GPS/GLONASS/Galileo/QZSS/SBAS, designed for centimeter-level RTK applications such as agriculture guidance, robotics, and precision navigation.

Model selections mentioned for this product listing include: BT-982G1, BT-982G2, BT-982G3, BT-982G4, BT-982M1, BT-982M2, BT-982M3, BT-982M4, BT-922G1, BT-922G2, BT-922G3, BT-922G4, BT-922M1, BT-922M2, BT-922M3, BT-922M4. Only the models with visible specifications below are documented here.

Key Features

  • Full-system GNSS support: BDS/GPS/GLONASS/Galileo/QZSS (model-dependent), with SBAS support (UM982 platform).
  • Positioning + orientation capability with stated orientation accuracy (model-dependent).
  • Adaptive anti-interference capability (as stated).
  • System compatibility (as stated): Windows, Linux, CE.
  • RTK base/rover workflow supported via radio or wired connection methods (connection diagrams provided).

Specifications

UM982 Platform (BT-982G1 / BT-982G3 / BT-982M1 / BT-982M3)

Chip UM982
Work mode BDS B1I/B2I/B3I, GPS L1/L2/L5, GLONASS L1/L2, Galileo E1/E5a/E5b, QZSS L1/L2/L5, SBAS
Channels 1408 channels, based on NebulasIV
Single-point positioning Flat: 1.5 m; Elevation: 2.5 m
RTK (RMS) Horizontal: 0.8 cm + 1 ppm; Vertical: 1.5 cm + 1 ppm
Orientation accuracy 0.1° / 1 m baseline
Time accuracy 20 ns
Speed accuracy 0.03 m/s
Start time Cold boot < 30 s; Warm boot < 4 s
Data update rate Positioning direction finding ≤ 20 Hz; Default: 1 Hz; ≤ 20 Hz raw data output
Baud rate 115200 bps
Voltage DC 3.6V-6V, typical: 5.0V
Current 220 mA/5V

UM982 Model-Specific Mechanical / I/O (Visible)

Model Dimension Weight Connector (board I/O) Antenna connector
BT-982G1 66*45*10.8 mm 18 g 2*1.25/6P with lock, horizontal SMD socket; 1*1.00/4P with lock, horizontal SMD socket 2-SMA-K
BT-982G3 43.4*30*10.8 mm 12 g 1.25/8P lockable, horizontal SMD socket 2-SMA-K
BT-982M1 66*45*5.8 mm 12 g 2*1.25/6P with lock, horizontal SMD socket; 1*1.00/4P with lock, horizontal SMD socket 2-SMA-K
BT-982M3 43*30*5.8 mm 9.5 g 1.25/8P lockable, horizontal SMD socket 2-SMA-K

UM982 RTK GNSS Module Reference Parameters (Provided)

Differential data RTCM V3.X
Output statements (default) GGA, RMC, VTG, GSA, GSV, HEADINGA, THS
Data format NMEA-0183, Unicore
DGPS (RMS) Flat: 0.4 m + 1 ppm; Elevation: 0.8 m + 1 ppm
PPP (RMS) Flat: 5 cm; Elevation: 10 cm
Accuracy of observations (RMS) Pseudorange: 10 cm; Carrier phase: 1 mm (BDS/GPS/GLONASS/Galileo rows provided)
Initialization time < 5 s (typical value)
Initialization reliability > 99.9%
Temperature Operating: -40 C to +85 C; Storage: -40 C to +105 C
LED indication (provided) PWR LED: Power-on red steady on (power input).
TX LED: Power-on blue indicator blinking (data output).
PPS LED: Not positioned: light off; after 3D positioning: blue light flashes.
RTK LED: Mobile terminal not in RTK mode: indicator not on; enter RTK Fixed mode: blue light on; base station not lit in any state.
PVT LED: Fixed constant light.

K922 Platform (BT-922G2 / BT-922G4 / BT-922M2 / BT-922M4)

Chip K922
Work mode (as provided) GPS: L1C/A, L2P, L2C, L5, L1C*
BDS-2: B1I, B2I, B3I
BDS-3: B1I, B1C*, B2a, B2b, B3I
GLONASS: G1, G2, G3
Galileo: E1, E5B, E5a, E5, AltBoC*, E6C*
QZSS: L1C/A, L2C, L5, L1C*
SBAS*: L1C/A, L5
IRNSS*: L5
Signal capture Tracking -155 dBm; Capture -140 dBm
Single-point positioning (Horizontality): 1.5 m; (Verticality): 3 m
RTK accuracy (Horizontality): (8+10-6xD) mm; (Verticality): (15+10-6xD) mm
Orientation accuracy 0.2° / 1 m baseline
Time accuracy 20 ns
Speed accuracy 0.02 m/s
Start time Cold start 20 s (B2b signal supported); Hot start (with RTC) 10 s
Baud rate 115200 bps
Output level TTL
Data update rate The default is 5 Hz
Operational limits Altitude 18 km; Velocity < 515 m/s
Voltage DC 3.6V-5.5V, typical: 5.0V
Current 150 mA/5V

K922 Model-Specific Mechanical / I/O (Visible)

Model Dimension Weight Connector (board I/O) Antenna connector
BT-922G2 66*45*10.8 mm 20.6 g 2*1.25/6P with lock, horizontal SMD socket; 1*1.00/4P with lock, horizontal SMD socket 2-SMA-KW
BT-922G4 43.4*30*10.8 mm 14.2 g 1.25/8P lockable, horizontal SMD socket 2-SMA-KW
BT-922M2 66*45*5.8 mm 15.8 g 2*1.25/6P with lock, horizontal SMD socket; 1*1.00/4P with lock, horizontal SMD socket 2-MMCX-KW
BT-922M4 43*30*5.8 mm 9.5 g 1.25/8P lockable, horizontal SMD socket 2-MMCX-KW

Pin Definition (Provided for BT-982G2 Board)

The following pin definition table is provided for the BT-982G2 layout (large-size module board) and is included as supplied reference information.

Connector Pin Name I/O Description
J1 (1.25 6P seat with lock) 1 RX1 I UART communication data input interface, TTL level
2 TX1 O UART communication data output interface, TTL level
3 GND G Ground grounding
4 VCC I Main power supply, DC input. DC 3.6V-6.0V; 5.0V recommended
5 RX1-232 I UART communication data input interface, RS-232 level
6 TX1-232 O UART communication data output interface, RS-232 level
J2 (1.25 6P seat with lock) 1 RX2 I UART communication data input interface, TTL level
2 TX2 O UART communication data output interface, TTL level
3 GND G Ground grounding
4 VCC I Main power supply, DC input. DC 3.6V-6.0V; 5.0V recommended
5 RX2-232 I UART communication data input interface, RS-232 level
6 TX2-232 O UART communication data output interface, RS-232 level
J3 (1.0 4P seat with lock) Standby interface
Type-C RTK GNSS module COM3 to USB communication

Mechanical Drawing Dimensions (Visible)

  • 45.00 ± 0.2
  • 37.00 ± 0.1
  • 66.00 ± 0.2
  • 58.00 ± 0.1
  • 4-Ø3.60
  • 25.90 (shown twice)
  • 6.60 ± 0.1
  • 19.00 ± 0.1
  • 4.00 (shown twice)
  • 5.5 ± 0.2
  • 1.20
  • 3.00
  • 4.2 ± 0.2
  • 10.8 ± 0.3
  • 14.6
  • 27.94
  • 8.53
  • 1.50
  • 2.54 (multiple locations shown)
  • 10.18
  • 7.62
  • 2.00
  • 12.70
  • 2.40
  • 15.24
  • 31.0 (shown with the bottom dimension line)

What's Included

Large-size module list (provided)

  • Selected RTK module x1
  • 1.00 pitch 4-pin with locking seat x1
  • 1.25 spaced 6-pin locking seats x2
  • USB to Type-C connection cable x1

Small-sized module list (provided)

  • Selected RTK module x1
  • 1.25 pitch 8-pin with locking seat x1

Note: The package list is provided for reference only; detailed configuration is based on customer requirements.

Applications

  • Driving test / driving training positioning
  • Unmanned aerial vehicles (UAV) positioning and navigation
  • Agricultural machinery navigation
  • Robotics
  • Intelligent driving and other high-precision positioning use cases

Support

For integration questions (interfaces, pinout, base/rover setup), contact [email protected] or visit https://rcdrone.top/.

Details

Specification comparison chart for Beitian BT-982 series UM982 RTK GNSS modules and model options

Choose the BT-982 series configuration that matches your GNSS bands, interface needs, and mechanical footprint.

Beitian BT-982 RTK GNSS module lineup with UM982 platform options for high-precision positioning and heading

The BT-982G1 is built on the UM982 platform for full-system, full-frequency RTK positioning and orientation workflows.

UM982 RTK GNSS module feature overview with supported constellations and key accuracy/spec table

Multi-constellation support (BDS/GPS/GLONASS/Galileo/QZSS) and RTK accuracy figures are summarized for quick evaluation.

BT-982G1 UM982 RTK GNSS module pin definition with labeled antenna ports and J1/J2/J3 connectors

Connector callouts help with fast integration: two SMA-K antenna inputs plus lockable JST-style board connectors for I/O.

BT-982 module connector pinout table plus rear view of PCB and mechanical size drawing dimensions

Pin mapping and mechanical drawings support wiring, enclosure layout, and harness planning before installation.

RTK connection concept graphic showing base station, communication link, and rover receiver with dual antennas

RTK setups typically pair a base and rover through radio or wired links, with front/rear antennas for heading applications.

RTK positioning module connection schematics for radio connection method and wired connection method

Both radio and wired connection methods are illustrated for base/rover deployment in field systems.

Application collage for RTK GNSS positioning module and anti-interference messaging for complex environments

Designed for demanding use cases such as drones, agriculture guidance, robotics, and other precision navigation tasks.

System compatibility icons for Linux, Windows, and CE plus base/rover package connection diagram graphic

Works across common host platforms, making it easier to integrate into custom controllers and embedded projects.

Product list image of Beitian BT-982 series boards comparing connector layouts and antenna SMA positionsPackage contents list with selected RTK module, locking cable assemblies, and USB to Type-C cable

Included cables and lockable connector leads simplify bench setup and initial configuration over USB Type‑C.

Related Collections