Emlid Reach RS3

Centimetre-Grade GNSS with Real-Time Tilt Compensation

The Emlid Reach RS3 is a next-generation GNSS receiver designed for fast, precise fieldwork—even in locations where vertical alignment is difficult. Featuring IMU-based tilt compensation, a built-in LTE modem, and rugged durability, the RS3 is ideal for surveyors and field teams working in complex environments.

Lightweight, waterproof, and calibration-free, the Reach RS3 simplifies GNSS surveying by allowing accurate measurements with up to 60° tilt—without sacrificing precision. Backed by the Emlid ecosystem, it’s a compact, reliable solution that accelerates stakeout and mapping workflows.

One Device, Multiple Advantages

Tilt Compensation (IMU)
Real-Time Correction
LTE Modem
Lightweight (950g)
Waterproof (IP67)
Dual-Band UHF Radio
Key Features

Tilt. Measure. Done.

Tilt Compensation Up to 60°

Survey with up to 60° tilt while maintaining 20mm accuracy. Reach RS3 automatically detects and corrects tilt in real time.

Fast Initialisation

Achieve tilt-ready mode in just 10–20 seconds of tilting or 20 metres of walking—no manual calibration required.

Immune to Magnetic Interference

IMU-based sensors remain accurate even near metal structures or magnetic fields.

Calibration-Free & Ready to Use

Pre-calibrated from the factory, the RS3 is ready to operate straight out of the box with no setup delays.

Centimetre Accuracy in Seconds

Rapid Fix Time

Achieves a centimetre-accurate RTK fix in about 5 seconds—even in partially obstructed conditions or when tilted.

RINEX Logging & PPP Support

Logs raw data for post-processing in industry-standard RINEX format. Compatible with Emlid Studio, OPUS, AUSPOS, and PPP services.

Built-In LTE Modem

Insert a SIM card to broadcast or receive NTRIP corrections over cellular networks—no external radio required.

Emlid Ecosystem Integration

Seamlessly pair the RS3 with other Emlid devices, such as the RS2+ as a base station or external radio modules for expanded communication.

Ideal for workflows that require base-rover configurations, multi-rover deployments, or flexible radio setups in the field.

In-The-Box
  • Reach RS3 x 1
  • Carrying case with a strap x 1
  • Radio antenna x 1
  • USB Type-C cable x 1
Specs Sheet
Mechanical
Category Specification
Dimensions 126 x 126 x 142 mm
Weight 950 g
Operating temperature -20 to +65 ºC
Ingress protection IP67
Dimensions
126 x 126 x 142 mm
Weight
950 g
Operating temperature
-20 to +65 ºC
Ingress protection
IP67
Electrical
Category Specification
Autonomy 18 hrs as an RTK rover with tilt22 hrs of logging
Battery Li-Ion 5200 mAh, 7.2 V, 37.44 Wh
Charging USB Type-C 5 V, 3 A
Autonomy
18 hrs as an RTK rover with tilt22 hrs of logging
Battery
Li-Ion 5200 mAh, 7.2 V, 37.44 Wh
Charging
USB Type-C 5 V, 3 A
Positioning
Category Specification
Static H: 4 mm + 0.5 ppmV: 8 mm + 1 ppm
PPK H: 5 mm + 0.5 ppmV: 10 mm + 1 ppm
RTK H: 7 mm + 1 ppmV: 14 mm + 1 ppm
Tilt RTK + 2 mm + 0.3 mm/°
Convergence time ~5s typically
Static
H: 4 mm + 0.5 ppmV: 8 mm + 1 ppm
PPK
H: 5 mm + 0.5 ppmV: 10 mm + 1 ppm
RTK
H: 7 mm + 1 ppmV: 14 mm + 1 ppm
Tilt
RTK + 2 mm + 0.3 mm/°
Convergence time
~5s typically
Connectivity
Category Specification
Radio LoRa – Transmit and receiveFrequency Range: 868/915 MHzPower: 0.1WDistance: Up to 8 kmUHF* – Receive onlyFrequency Range: 410–470 MHzProtocols: TRIMTALK 450SModulation Type: GMSK*Requires a 410-470 MHz antenna, sold separately.
LTE modem Regions: GlobalBands: FDD-LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 18, 19, 20, 26, 28, 66TD-LTE: 38, 40, 41UMTS (WCDMA/FDD): 1, 3, 2, 4, 5, 6, 8, 19Quad-band, 850/1900, 900/1800 MHzSIM Card: Nano-SIM
Wi-Fi 802.11 b/g/n
Bluetooth 4.0/2.1 EDR
Ports RS-232, USB Type-C
Radio
LoRa – Transmit and receiveFrequency Range: 868/915 MHzPower: 0.1WDistance: Up to 8 kmUHF* – Receive onlyFrequency Range: 410–470 MHzProtocols: TRIMTALK 450SModulation Type: GMSK*Requires a 410-470 MHz antenna, sold separately.
LTE modem
Regions: GlobalBands: FDD-LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 18, 19, 20, 26, 28, 66TD-LTE: 38, 40, 41UMTS (WCDMA/FDD): 1, 3, 2, 4, 5, 6, 8, 19Quad-band, 850/1900, 900/1800 MHzSIM Card: Nano-SIM
Wi-Fi
802.11 b/g/n
Bluetooth
4.0/2.1 EDR
Ports
RS-232, USB Type-C
Data
Category Specification
Corrections NTRIP, RTCM3
Position output NMEA, LLH/XYZ
Data logging RINEX, NMEA, LLH/XYZ, UBX
Internal storage 16 GB
Corrections
NTRIP, RTCM3
Position output
NMEA, LLH/XYZ
Data logging
RINEX, NMEA, LLH/XYZ, UBX
Internal storage
16 GB
GNSS
Category Specification
Signal tracked GPS/QZSS L1C/A, L2C,GLONASS L1OF, L2OF,BeiDou B1I, B2I, GalileoE1B/C, E5b
Number of channels 184
Update rates Up to 10 Hz
IMU 6DOF
Signal tracked
GPS/QZSS L1C/A, L2C,GLONASS L1OF, L2OF,BeiDou B1I, B2I, GalileoE1B/C, E5b
Number of channels
184
Update rates
Up to 10 Hz
IMU
6DOF

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