SKU: 71399978609

T-RTK-UM982 Modular Centimeter-Level Satellite Positioning Module

$282.13 $313.48
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Description

T-RTK-UM982 Modular Centimeter-Level Satellite Positioning ModuleProduct Introduction T RTK UM982: Cost Effective Centimeter Level Positioning Solution. This module features a modular, stackable design that integrates mobile station, base station, 4G, and radio functionalities. It includes a built in magnetic compass, Wi Fi hotspot, and supports single dual antenna configurations for applications like drones, unmanned vehicles, and surveyingPowered by the UM982 all system, all frequency chip, it achieves a cold

Product Introduction

T-RTK UM982: Cost-Effective Centimeter-Level Positioning Solution.

This module features a modular, stackable design that integrates mobile station, base station, 4G, and radio functionalities. It includes a built-in magnetic compass, Wi-Fi hotspot, and supports single/dual antenna configurations for applications like drones, unmanned vehicles, and surveyingPowered by the UM982 all-system, all-frequency chip, it achieves a cold start in <30s, hot start in <4s, and provides a 20Hz update rate, supporting BeiDou, GPS, and other global satellite systems.It offers versatile interfaces (USB-C, UART, flight controller port) for direct connection to Pixhawk flight controllers and compatibility with embedded devices. Drivers for ROS, Python, and C++ facilitate access to position, velocity, and heading data.An optional all-in-one base station version provides up to 8 hours of battery life for portable, plug-and-play operation.

Product Features

 

All-Satellite All-Frequency, Worry-Free Signal


Supports global navigation systems such as BDS/GPS, with multi-frequency signal reception, enabling rapid signal acquisition even in complex environments to ensure stable operation.

Centimeter-Level Accuracy, Precision Guaranteed


Utilizes Real-Time Kinematic (RTK) technology to deliver real-time centimeter-level positioning accuracy, meeting stringent requirements for professional applications like surveying and construction layout.

Multi-Platform Compatibility, Broad Applicability


Designed for flexible integration with diverse equipment including drones and unmanned vehicles, adapting to varied high-precision positioning needs across industries.

Multi-Mode Communication, Flexible and Efficient


Supports self-established base stations or connection to CORS networks, with configurable communication modules (e.g., 4G, radio) to ensure robust and adaptable differential data links.

Cumulative sales surpass 10,000 units, shipped to over 50 countries worldwide

 

All-Satellite All-Frequency, Centimeter-Level Accuracy

Powered by the high-performance UM982 chip, it supports all major satellite systems and full-frequency signals, delivering data at a high update rate of 20Hz.Horizontal Accuracy: 0.8 cm + 1 ppm,Vertical Accuracy: 1.5 cm + 1 ppm

Multi-Platform Compatibility

Native support for diverse application scenarios including drones, autonomous vehicles, robots, agricultural machinery, surveying and mapping, and environments with or without CORS services.

Selection Recommendations

 

 

Modular Design

Features a stackable, modular design incorporating mobile units, base station units, 4G communication modules, 5-kilometer radio modules, Wi-Fi hotspots, and other components.

Modular Design

Features a stackable, modular design incorporating mobile units, base station units, 4G communication modules, 5-kilometer radio modules, Wi-Fi hotspots, and other components.

Extensive Interface Configuration

Integrated Type-C (combined power delivery/debugging/communication), dual serial ports (4-pin basic communication + 7-pin flight controller interface), PPS precision timing, and I²C direct connection to magnetic compass.

Multiple Communication Methods

Supports direct connection to CORS via 4G modules, radio ad hoc networking, and Python API integration with CORS, offering flexible adaptation to diverse scenarios.

WiFi Hotspot Networking

The base station incorporates a built-in WiFi hotspot for wireless connectivity, enabling UDP-based sharing of RTCM differential data packets.Multiple Mission Planner or QGC ground stations can be paired with remote controllers to achieve drone swarm positioning.

Flexible single/dual antenna switching

Flexible switching between SMA single-antenna direct plug and MMCX dual-antenna connectors.

Secondary Development

Provides ROS, Python, and C++ drivers for easy access to data such as latitude, longitude, altitude, velocity, and heading, enabling rapid secondary development.

Integrated Base Station

Optional integrated base station combines the base unit, battery, mushroom-head antenna, and tripod into one compact unit. Offers 8 hours of battery life, lightweight and portable, ready to use right out of the box.

Integrated Base Station

Optional integrated base station combines the base unit, battery, mushroom-head antenna, and tripod into one compact unit. Offers 8 hours of battery life, lightweight and portable, ready to use right out of the box.

Interface and Wire Sequence

Fastening method

Technical Parameter

Parameter Model Mobile End Base Station End Integrated Base Station (T-RTK UM982 OneBase)
Positioning Module Model UM982 UM982 UM982
Basic information Channels 1408 channels, based on NebulasIV
Antenna Interface MMCX2, SMA1 SMA*1
Modes BDS B1I, B2I, B3I, B1C, B2b
GPS L1C/A, L2C, L2P(Y), L5
GLONASS G1, G2
Galileo E1, E5a, E5b, E6
QZSS L1C/A, L2C, L5, L6
SBAS L1C/A
Main Antenna Frequencies BDS: B1I, B2I, B3I
GPS: L1C/A, L2P (Y)/L2C, L5
GLONASS: G1, G2
Galileo: E1, E5a, E5b
QZSS: L1, L2, L5
Secondary Antenna Frequencies BDS: B1I, B2I, B3I
GPS: L1C/A, L2C
GLONASS: G1, G2
Galileo: E1, E5b
QZSS: L1, L2
Performance Metrics RTK (RMS) Horizontal: 0.8cm + 1ppm
Vertical: 1.5cm + 1ppm
Single Point (RMS) Horizontal: 1.5m
Vertical: 2.5m
DGPS (RMS) Horizontal: 0.4m + 1ppm
Vertical: 0.8m + 1ppm
PPP (RMS) Horizontal: 5cm
Vertical: 10cm
Heading Accuracy (RMS) 0.1° / 1m baseline
PPS Accuracy (RMS) 20 ns
Velocity Accuracy (RMS) 0.03 m/s
Cold Start Time <30 s
Warm Start Time < 4 s
Initialization Time <5s (typical)
Initialization Reliability > 99.9%
Data Update Rate Default: 2Hz, Max: 20Hz
Positioning/Heading: 20Hz, Raw Measurements: 20Hz
Differential Data Format RTCM 3.X
Data Format NMEA-0183, Unicore
Baud Rate 4800bps~921600bps (Default: 115200bps)
Magnetometer Model IST8310
Measurement Range ±1600 μT (X, Y-axis), ±2500 μT (Z-axis)
Offset Temp. Drift 0.024 μT/°C
Physical Dimensions 39mm×39mm×12.5mm 39mm×39mm×22.1mm 147mm×82mm×36mm
Weight 34g (excl. antenna) 52g (excl. antenna) 386g
Electrical Voltage 5V 5V 5V
Power Consumption 1300mW 2000mW 2888mW
Runtime – – 9h
Environment (RTK Chip) Operating Temperature -40℃ ~ +85℃
Storage Temperature -55℃ ~ +95℃
Humidity 95% non-condensing
Vibration GJB150.16-2009, MIL-STD-810F
Shock GJB150.18-2009, MIL-STD-810F
Communication Interface I2C 1 x I2C (shared with 7Pin UART)
USB 1 x USB
UART 1 x 4Pin UART, 1 x 7Pin UART 1 x 7Pin UART
 
Integrated Base Station Tripod Height Max 1.80m
External Power Port XT30 x 1 (12V)
Antenna Interface SMA only
Voltage Display Supported
4G Module Network Standard 4G All-netcom (supports China Mobile/Unicom/Telecom)
Dimensions 39mm39mm14.5mm (excl. antenna)
Weight 49g (incl. antenna)
Operating Voltage 5V (directly powered by RTK)
Power Consumption <0.3W
Radio Module Networking Mode Peer-to-multipeer, star network
Max Network Nodes Theoretical max: 100
Frequency Band 410~525MHz
Max TX Power 22±0.5dBm@470MHz
Transmission Rate Max: 0.268Kbps
Communication Range Max: 5km (air-to-air)
Dimensions 39mm39mm14.5mm (excl. antenna)
Weight 49g (incl. antenna)
Operating Voltage 5V (directly powered by RTK)
Power Consumption <0.4W
Quadrifilar Helix Antenna Operating Modes GPS L1, L2, L5
BDS B1, B2, B3
GLONASS L1, L2, L3
Galileo E1, E5a, E5b, E6
SBAS L1, L5
QZSS L1, L2, L5, L6
IRNSS L5
Gain 32±2dB
Interface SMA-J
Dimensions Φ27.3 * 58.6mm
Weight 16g
Mushroom Antenna Operating Modes GPS L1, L2, L5
BDS B1I, B2I, B3I, B1C, B2a, B2b
GLONASS L1, L2, L3
Galileo E1, E5a, E5b, E6
SBAS L1, L5
QZSS L1, L2, L5, L6
IRNSS L5, L-Band
Gain 38±2dB
Interface TNC-K
Dimensions Φ154 * 64.2mm
Weight 280g
Quadrifilar Antenna Bracket Dimensions Height ~11.7cm
Weight

16g (incl. feeder cable)

Product size

 

Shipping list

 

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 71399978609

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Mary F.
Natrona Heights, US
★★★★★ 5
The BEST sunscreen I've found
Style: SPF 50, Size: 3 Fl Oz (Pack of 1)
This is my MUST HAVE sunscreen. I've had almost every type of skin cancer (thankfully, caught early), so I NEED good sun protection, especially on my face. I have very fair skin. This product leaves a bit of a white cast, but after a short period of time, that white case is absorbed. The white cast of a mineral sunscreen might look chalky on a person with darker skin. The BEST thing about this sunscreen is I can put it on my eyelids and under my eyes, it doesn't irritate my eyes AT ALL. The other well-known sunscreen I used for a long time really made my eyes sting if a bit got into them. This is my favorite sunscreen of all time.
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Reviewed in the United States on February 3, 2025
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Nena
Natrona Heights, US
★★★★★ 4
Solid mineral SPF with light coverage effect
Style: SPF 50, Size: 3 Fl Oz (Pack of 1)
I’m used to La Roche-Posay’s chemical sunscreens, so this was my first time trying their mineral version. The texture is actually quite nice for a mineral formula. It spreads evenly and doesn’t feel gritty or chalky. That said, it does take a bit longer to fully absorb compared to chemical SPFs. I’m already very pale, and I still notice a slight white cast. It’s not extreme, but it’s there. To be fair, most mineral sunscreens tend to do this, especially those using zinc oxide and titanium dioxide. Interestingly, on my skin it almost behaves like a very light tinted sunscreen. It slightly blurs and softens the appearance of minor blemishes and redness, which I appreciate on minimal-makeup days. It provides broad-spectrum SPF 50 protection and feels gentle on sensitive skin. I haven’t experienced irritation, pilling, or breakouts. It layers reasonably well over moisturizer but benefits from being applied in thin, well-blended layers, which adds some time to my morning routine so it's a little inconvenient. Overall, it’s a solid mineral option with good protection. Just expect a bit more blending time and a subtle cast.
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Reviewed in the United States on February 24, 2026
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Wiscocojo
Charlottesville, US
★★★★★ 5
Great for pregnancy (or regular use)
Style: SPF 50, Size: 4.05 Fl Oz (Pack of 1)
I searched far and wide for a safe mineral-based sunscreen for pregnancy. I settled on this one and I was not disappointed. It saved my skin from a lot of sunburn this summer! As other reviewers mentioned, it is harder to rub into the skin and can leave a whiteish tint, but that’s a small price to pay for a pregnancy-safe option.
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Reviewed in the United States on September 22, 2025
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Roni
Fort Morgan, US
★★★★★ 1
Terrible, look like a ghost
Style: SPF 50, Size: 3 Fl Oz (Pack of 1)
I love La Roche-Posay but unfortunately, I finally came across the first product I truly hate from them. This product is a complete white mask on your face and does not settle in at all. You’ll be walking around looking like a ghost all day and it gave me a mild irritation to my eyes.
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Reviewed in the United States on May 29, 2026
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W.Winters
Belleville, US
★★★★★ 3
Leaves white cast, works okay under makeup.
Style: SPF 50, Size: 3 Fl Oz (Pack of 1)
First time using this sunscreen. I have very sensitive skin and thought since my skin tolerates their cleansers and moisturizers surely it should tolerate the sunscreen. So far so good. It’s very calming on my skin (maybe because of the zinc), but it leaves a noticeable white cast especially if you have dark skin. I wear mine under makeup and have a separate sunscreen from another brand on days where I don’t want to wear makeup. The white cast actually acts as a blank base and helps my foundation to lay well. A tip I learned from makeup artists years ago. Sunscreens that leave a white cast cancels out your natural color and acts as a corrector, concealer and foundation to lay better and look more like skin. Think of it like painting on a blank canvas. The texture is not lotion like and is actually quite thick. make sure to moisturize well before apply this sunscreen. I’ll write an update if I notice any negative issues, but so far I’m content with it because of the purpose I'm using it for.
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Reviewed in the United States on October 23, 2023

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