UM982 RTK HD Dual-Ant BD GNSS

The UM982 module is a high-precision RTK GNSS positioning module designed specifically for drone applications, offering centimeter-level accuracy. Equipped with a dual-antenna directional design, it supports both BeiDou and GPS satellite systems, providing real-time kinematic (RTK) corrections for enhanced positional precision. The module’s dual-antenna setup improves heading measurement accuracy, ensuring stable directional and positioning performance during flight. It is ideal for use in demanding environments where precise navigation is essential.

Key Features:

Centimeter-level accuracy using RTK technology
Dual-antenna directional design for precise heading and positioning
Supports BeiDou (BD) and GPS satellite systems for global coverage
Real-time kinematic (RTK) corrections for high-precision positioning
High dynamic response and low latency for real-time navigation

Applications:

Aerial Surveying: For mapping and geospatial data collection with high positional accuracy.
Precision Agriculture: Enabling automated field mapping, crop monitoring, and machine control.
Drone Photography: Accurate positioning for aerial imagery and video production.
Industrial Inspection: High-precision positioning for infrastructure monitoring and inspections.
Autonomous Flight: Enhanced navigation and stability for autonomous UAVs

Specification

Model	BT-982K1	BT-982K2	BT-982K3	BT-982K4
Chip	UM982	UM982	UM982	UM982
Operating Mode	BDS B1I/B2I/B3I	BDS B1I/B2I/B3I	BDS B1I/B2I/B3I	BDS B1I/B2I/B3I
	GPS L1C/A/L2P (Y)/L2C/L5	GPS L1C/A/L2P (Y)/L2C/L5	GPS L1C/A/L2P (Y)/L2C/L5	GPS L1C/A/L2P (Y)/L2C/L5
	GLONASS L1/L2	GLONASS L1/L2	GLONASS L1/L2	GLONASS L1/L2
	Galileo E1/E5a/E5b	Galileo E1/E5a/E5b	Galileo E1/E5a/E5b	Galileo E1/E5a/E5b
	QZSS L1/L2/L5	QZSS L1/L2/L5	QZSS L1/L2/L5	QZSS L1/L2/L5
Channels	1408	1408	1408	1408
RTK (RMS)	Horizontal: 0.8 cm + 1 ppm	Horizontal: 0.8 cm + 1 ppm	Horizontal: 0.8 cm + 1 ppm	Horizontal: 0.8 cm + 1 ppm
RTK (RMS)	Vertical: 1.5 cm + 1 ppm	Vertical: 1.5 cm + 1 ppm	Vertical: 1.5 cm + 1 ppm	Vertical: 1.5 cm + 1 ppm
Orientation Accuracy (RMS)	0.2° / 1 m baseline	0.2° / 1 m baseline	0.2° / 1 m baseline	0.2° / 1 m baseline
Time Accuracy (RMS)	20 ns	20 ns	20 ns	20 ns
Speed Accuracy (RMS)	0.03 m/s	0.03 m/s	0.03 m/s	0.03 m/s
Data Update Rate	Dual-frequency 20Hz	Dual-frequency 20Hz	Dual-frequency 20Hz	Dual-frequency 20Hz
Data Update Rate	20Hz raw data output	20Hz raw data output	20Hz raw data output	20Hz raw data output
Baud Rate	115200 bps	115200 bps	115200 bps	115200 bps
Voltage	DC 3.6V-6.0V, Typical: 5.0V	DC 3.6V-6.0V, Typical: 5.0V	DC 3.6V-6.0V, Typical: 5.0V	DC 3.6V-6.0V, Typical: 5.0V
Current	80 mA/5.0V	80 mA/5.0V	80 mA/5.0V	80 mA/5.0V
Dimensions	66mm * 45mm * 10.8mm	66mm * 45mm * 10.8mm	43mm * 30mm * 10.8mm	43mm * 30mm * 10.8mm
Weight	18 g	21 g	12 g	14.5 g
Connector	2 x 1.25 mm pitch 6-pin locking connector	2 x 1.25 mm pitch 6-pin locking connector	1.25 mm pitch 8-pin locking connector	1.25 mm pitch 8-pin locking connector
Connector	1 x 1.0 mm pitch 4-pin locking connector	1 x 1.0 mm pitch 4-pin locking connector	1.25 mm pitch 8-pin locking connector	1.25 mm pitch 8-pin locking connector
Cold Start	< 30 s	< 30 s	< 30 s	< 30 s
Initialization Time	< 5 s (typical)	< 5 s (typical)	< 5 s (typical)	< 5 s (typical)
Initialization Reliability	> 99.9%	> 99.9%	> 99.9%	> 99.9%

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