Specifications

Unless otherwise noted, this information covers both receiver models.

The label on your receiver shows if you have an R750 or R750-2. P/N 118500‑xx is an R750. P/N 218500‑xx is an R750-2.

Specifications are subject to change without notice.

Configuration option
Configuration option	Modular
Base and rover interchangeability	Yes, upgradeable to rover, base or rover, and base
Rover position update rate	1 Hz, 2 Hz, 5 Hz, 10 Hz, 20 Hz, 50 Hz
Rover maximum range from base	Unrestricted. Typical range 2 to 5 km (1.2 to 3 miles) without a radio repeater.
Rover operation within a VRS network	Yes
Heading and moving base operation	Yes
Internal memory	9.25 GB logging

General
Keyboard and display	OLED display (256 × 64), 32 characters by 4 rows On/Off key for one-button startup Escape and Enter keys for menu navigation Four arrow keys (up, down, left, right) for option scrolls and data entry
Dimensions (L × W × H)	269 mm (L) x 141 mm (W) x 61 mm (H) 10.6 in (L) x 5.5 in (W) x 2.4 in (H)
Weight	2.05 kg 4.52 lb

General

Keyboard and display

OLED display (256 × 64), 32 characters by 4 rows

On/Off key for one-button startup

Escape and Enter keys for menu navigation

Four arrow keys (up, down, left, right) for option scrolls and data entry

Dimensions (L × W × H)

269 mm (L) x 141 mm (W) x 61 mm (H)
10.6 in (L) x 5.5 in (W) x 2.4 in (H)

Weight

2.05 kg
4.52 lb

GNSS antenna (recommended)
Also see GNSS Antenna Chart
Zephyr 3 or Zephyr™ Model 2 series (base, rover, rugged, geodetic)	Triple-frequency GNSS (BeiDou, Galileo, GLONASS, GPS, NavIC, QZSS) MSS, SBAS
GA830	Triple-frequency GNSS (GPS, GLONASS, Galileo, BeiDou, QZSS, NavIC), MSS, MSK, SBAS (R750) Triple-frequency GNSS (GLONASS, Galileo, BeiDou, QZSS), MSS, MSK Beacon, SBAS (R750-2)
LNA filters	Japanese LTE filtering below 1510 MHz allows antenna usage > 100 m (328 ft) from a Japanese LTE cell tower Iridium filtering above 1616 MHz allows usage > 20 m (65.6 feet) from an Iridium transmitter.

Temperature
Operating ¹	-40 °C to +65 °C (-40 °F to +149 °F)
Storage	-40 °C to +80 °C (-40 °F to +176 °F)
Humidity	93 % humidity at 40 °C for a duration of 3 hours (IEC-60945 Method 8.3)
Water Ingress Protection (IP)	IP67 for submersion to depth of 1 m (3.3 ft), dustproof
¹ Operating up to +65 °C ambient when the device is powered by external DC supply and the battery is fully charged or is not being charged. Operating up to +30 °C ambient when the battery is being charged by an external DC supply. Operating up to +48 °C ambient when the device is powered by a USB-PD battery or charger.

Shock and vibration
Pole drop	Designed to survive a 1.1 m (3.6 ft) pole drop onto a hard surface
Shock – non-operating	To 75 g, 6 ms
Shock – operating	To 40 g, 10 ms, saw-tooth
Vibration	IEC 60945 Method 8.7 Random 6.2 g RMS operating 9.8 g RMS 24 to 2000 Hz for 1 hrs each axis survival

GNSS technology

Advanced Trimble Maxwell™ 7 technology custom GNSS chip (R750)
Advanced Trimble dual Maxwell 7 GNSS chipset provides 672 channels for simultaneous satellite tracking and anti-spoofing capabilities (R750-2)
Constellation agnostic, flexible signal tracking with ProPoint® technology
Unfiltered, unsmoothed pseudo-range measurements data for low noise, low multipath error, low-time domain correlation, and high-dynamic response
Trimble EVEREST™ multipath signal rejection
Trimble IonoGuard™ technology for mitigation of ionospheric GNSS signal disruptions
Spectrum Analyzer to troubleshoot GNSS jamming
Anti-spoofing capabilities
Trimble xFill® technology for short gaps in correction messages

Multi-channel GNSS (336 channels) (R750):

BeiDou: B1, B1C, B2, B2A, B2B, B3
Galileo: E1, E5a, E5b, E5AltBOC, E6 ²

Galileo HAS is supported from firmware version 6.28. Galileo HAS has reached service level 1, which means “reduced coverage and performance with respect to the Full Service”. For example, the phase biases are still missing in the correction stream. Currently, Trimble cannot guarantee the convergence time specification at least until phase biases are provided. For more information, refer to https://www.gsc-europa.eu/galileo/services/galileo-high-accuracy-service-has.
GLONASS: L1-C/A, L2-C/A, L1P, L2P, L3 Full Cycle Carrier
GPS: L1 C/A, L1C, L2C, L2E (Trimble method for tracking unencrypted L2P), L5
NavIC: L5-C/A
SBAS L1 C/A (EGNOS / MSAS / GAGAN, SDCM), L1 C/A, L5 (WAAS)

QZSS: L1 C/A, L1C, L1S, L2C, L5, L6D, L6E

QZSS CLAS is supported. QZSS CLAS provides centimeter-level nationwide positioning PPP-RTK correction service for Japan. Compact SSR correction format broadcast at 2,000 bps on the QZSS L6D signal. QZSS CLAS supports multi-GNSS including GPS, Galileo, and QZSS. Use firmware version 6.26 or later and enable QZSS L6D on the Tracking screen.

QZSS CLAS	Static (95%)	Kinematic (95%)
Horizontal accuracy	≤ 6 cm	≤ 12 cm
Vertical accuracy	≤ 12 cm	≤ 24 cm

Multi-channel GNSS (672 channels) (R750-2):

BeiDou: B1, B1C, B2, B2A, B2B, B3
Galileo: E1, E5a, E5b, E5AltBOC, E6 ²

Galileo HAS is supported from firmware version 6.28. Galileo HAS has reached service level 1, which means “reduced coverage and performance with respect to the Full Service”. For example, the phase biases are still missing in the correction stream. Currently, Trimble cannot guarantee the convergence time specification at least until phase biases are provided. For more information, refer to https://www.gsc-europa.eu/galileo/services/galileo-high-accuracy-service-has.
GLONASS: L1-C/A, L2-C/A, L2P, L3 Full Cycle Carrier
GPS: L1 C/A, L1C, L2C, L2E (Trimble method for tracking unencrypted L2P), L5
NavIC: L5-C/A
SBAS L1 C/A (EGNOS / MSAS / GAGAN, SDCM), L1 C/A, L5 (WAAS)

QZSS: L1 C/A, L1C, L1S, L2C, L5, L6D, L6E

QZSS CLAS	Static (95%)	Kinematic (95%)
Horizontal accuracy	≤ 6 cm	≤ 12 cm
Vertical accuracy	≤ 12 cm	≤ 24 cm

MSS Band (2-channels): Trimble CenterPoint® RTX correction service and OmniSTAR®, and Fugro MarineStar correction services by subscription. Trimble CenterPoint RTX corrections service is activated and ready to use for the 12 months from activation.

² Galileo Commercial Authorization. Developed under a License of the European Union and the European Space Agency.

Accuracies

Regional SBAS (EGNOS / MSAS / SDCM / SouthPan / QZSS / WAAS) positioning ³

Horizontal accuracy

Horizontal ± 0.50 m (1.6 ft)

Vertical accuracy

Vertical ± 0.85 m (2.8 ft)

Precise Point Positioning (PPP)

The receivers’ current capability is based on publicly available information. As such, Trimble cannot guarantee they will be fully compatible with future generations of Galileo and QZSS satellites or signals.

Galileo HAS, SL1 (global)

Horizontal ± 0.20 m (0.7 ft), Vertical ± 0.40 m (1.3 ft), Convergence 300s

Galileo HAS is supported from firmware version 6.28. Galileo HAS has reached service level 1, which means “reduced coverage and performance with respect to the Full Service”. For example, the phase biases are still missing in the correction stream. Currently, Trimble cannot guarantee the convergence time specification at least until phase biases are provided. For more information, refer to https://www.gsc-europa.eu/galileo/services/galileo-high-accuracy-service-has.

QZSS CLAS (Japan only)

Horizontal 0.07 m (0.2 ft) RMS, Vertical ± 0.12 m (0.4 ft) RMS

QZSS CLAS	Static (95%)	Kinematic (95%)
Horizontal accuracy	≤ 6 cm	≤ 12 cm
Vertical accuracy	≤ 12 cm	≤ 24 cm

Code Differential GPS positioning ⁴

Horizontal accuracy

±(0.25 m + 1 ppm) RMS ±(0.8 ft + 1 ppm)
±(250+1×D×10⁻⁶) mm (D = distance from base in km)

Vertical accuracy

±(0.50 m + 1 ppm) RMS ±(1.6 ft + 1 ppm)
±(500+1×D×10⁻⁶) mm (D = distance from base in km)

OmniSTAR positioning

VBS service accuracy

Horizontal <1 m (3.3 ft)

XP service accuracy

Horizontal 0.2 m (0.66 ft), vertical 0.3 m (1.0 ft)

HP service accuracy

Horizontal 0.1 m (0.33 ft), vertical 0.15 m (0.5 ft)

Marinestar G2+ service accuracy

Horizontal 0.02 m (0.06 ft), vertical 0.06 m (0.20 ft), 95%

CenterPoint RTX positioning ⁵

Convergence time for specified precisions

Less than 1 min in RTX Fast regions, and less than 3 minutes worldwide

CenterPoint RTX accuracy (with valid subscription)

Horizontal 0.02 m (0.06 ft) RMS. Vertical 0.03 m (0.1 ft) RMS.

xFill mode (limited to 5 minutes)

RTK Horizontal + 10 mm(0.03 ft)/min RMS. RTK Vertical + 20 mm(0.06 ft)/min RMS.

xFillx-RTX mode (with valid CenterPoint RTX subscription)

Horizontal 0.03 m (0.01 ft) RMS. Vertical 0.07 m (0.2 ft) RMS.

Accuracies are dependent on GNSS satellite availability. xFill positioning without an RTX subscription ends after 5 minutes of radio downtime. xFill-RTX will continue beyond 5 minutes providing the solution has converged. xFill is not available in all regions, check with your local sales representative for more information.

RTK refers to the last reported precision before the correction source was lost and xFill started.

Trimble xFill positioning ⁶

xFill accuracy ⁸

RTK + 10 mm (0.03 ft)/min horizontal + 20 mm (0.06 ft)/min vertical RMS

Real-Time Kinematic positioning ⁴

Horizontal accuracy

8 mm + 1 ppm RMS (0.026 ft + 1 ppm RMS)
±(8+1×D×10⁻⁶) mm (D = distance from base in km)

Vertical accuracy

15 mm + 1 ppm RMS (0.05 ft +1 ppm RMS)
±(15+1×D×10⁻⁶) mm (D = distance from base in km)

Networked RTK ⁷ (R750-2)

Horizontal accuracy

8 mm + 0.5 ppm RMS
±(8+1×D×10⁻⁶) mm (D = distance from base in km)

Vertical accuracy

15 mm + 1 ppm RMS
±(15+1×D×10⁻⁶) mm (D = distance from base in km)

Trimble VRS ⁷(R750)

Horizontal accuracy

3 mm + 0.5 ppm RMS
±(3+0.5×D×10⁻⁶) mm (D = distance from base in km)

Vertical accuracy

5 mm + 0.5 ppm RMS (0.05 ft +0.5 ppm)
±(5+0.5×D×10⁻⁶) mm (D = distance from base in km)

Precise Heading

Heading accuracy

With incoming Moving Base CMRx corrections

2 m antenna separation

0.09° RMS

10 m antenna separation

0.05° RMS

High Precision Static

Horizontal accuracy

3 mm + 0.1 ppm RMS (0.01 ft +0.1 ppm)
±(3+0.1×D×10⁻⁶) mm (D = distance from base in km)

Vertical accuracy

3.5 mm + 0.4 ppm RMS (0.011 ft +0.4 ppm)
±(3.5+0.4×D×10⁻⁶) mm (D = distance from base in km)

Velocity

Doppler horizontal accuracy

0.008 m/s RMS

Doppler vertical accuracy

0.025 m/s RMS

³ Depends on SBAS system performance.

⁴ Accuracy and reliability may be subject to anomalies such as multipath, obstructions, satellite geometry, interference and atmospheric conditions. Always follow recommended survey practices.

⁵ Receiver accuracy and convergence time varies based on GNSS constellation health, level of multipath, and proximity to obstructions such as large trees and buildings.

⁶ Accuracies are dependent on GNSS satellite availability. xFill positioning without an xFill Premium subscription ends after five minutes of radio downtime. xFill Premium will continue beyond 5 minutes providing the solution has converged, with typical precisions not exceeding 3 cm horizontal, 7 cm vertical. xFill positioning without an RTX subscription ends after five minutes of radio downtime. xFill-RTX will continue beyond five minutes providing the solution has converged. xFill is not available in all regions, check with your local sales representative for more information.

⁷ Networked RTK PPM values are referenced to the closest physical base station.

⁸ RTK refers to the last reported precision before the correction source was lost and xFill started.

Initialization time
Regular RTK operation with base station	Single/Multi-base
Initialization	2 to 8 seconds
Initialization reliability ⁹	>99.9%
⁹ May be affected by atmospheric conditions, signal multipath, and satellite geometry. Initialization reliability is continuously monitored to ensure highest quality.

Power
Internal	Integrated internal battery 7.26 V, 6700 mAh, Lithium-ion. Internal battery operates as a UPS during an external power source failure. Internal battery will charge from USB-PD power source or approved AC power supply. See Accessories. Integrated charging circuitry.
External	Power input on 7-pin 0-shell LEMO connector is optimized for lead acid batteries with a cut-off threshold of 11.5 V, maximum 28 V DC Power input on the 26-pin D-sub connector has a cut-off threshold of 10.5 V Power source will hot-swap between internal and external sources USB-PD device capable of 15 V @ 2 A DC external power input with over-voltage protection Receiver automatically turns on when connected to external power
Power consumption	6.6 W in rover mode with internal receive radio 8.5 W in base mode with internal transmit radio

Power

Internal

Integrated internal battery 7.26 V, 6700 mAh, Lithium-ion.
Internal battery operates as a UPS during an external power source failure.
Internal battery will charge from USB-PD power source or approved AC power supply. See Accessories.
Integrated charging circuitry.

External

Power input on 7-pin 0-shell LEMO connector is optimized for lead acid batteries with a cut-off threshold of 11.5 V, maximum 28 V DC
Power input on the 26-pin D-sub connector has a cut-off threshold of 10.5 V
Power source will hot-swap between internal and external sources
USB-PD device capable of 15 V @ 2 A
DC external power input with over-voltage protection
Receiver automatically turns on when connected to external power

Power consumption

6.6 W in rover mode with internal receive radio

8.5 W in base mode with internal transmit radio

Operation time on internal battery (R750)
Rover
	7 hrs: CMRx over UHF 7 hrs: VRS/IBSS over LTE (internal or controller via Bluetooth)
Base station
450 MHz	5.5 hrs (0.5 W), 4.8 hrs (2 W): CMRx over UHF and LTE
900 MHz base station	6.2 hrs: CMRx over UHF and LTE
	Adding a USB-PD powerpack (30,000 mAh) to a fully charged internal battery will provide about 13.9 hrs @ 11.4 W for a 450 MHz at 2 W

Operation time on internal battery (R750-2)
Rover
	7 hrs: CMRx over UHF 7 hrs: VRS/IBSS over LTE (internal or controller via Bluetooth)
Base station
450 MHz	5.5 hrs (0.5 W), 5 hrs (1 W): CMRx over UHF and LTE
900 MHz base station	7 hrs: CMRx over UHF and LTE
	Adding a USB-PD powerpack (30,000 mAh) to a fully charged internal battery will provide about 13.9 hrs @ 11.4 W for a 450 MHz at 1 W

Regulatory approvals
See Compliance notices.

Communications
Serial 1 (COM1)	7-pin 0S LEMO, serial 1, 3-wire RS-232
Serial 2 (COM2)	26-pin D-sub, serial 2, 5-wire RS-232, using adapter cable (selectable) 26-pin D-sub, serial 2, 4-wire RS-422, using adapter cable (selectable)
Serial 3 (COM3)/CAN	26-pin D-sub, serial 3, 3-wire RS-232, using adapter cable (selectable) 2-wire CAN output [NMEA 2000] (Selectable)
Serial 4 (COM4)	26-pin D-sub, serial 4, 4-wire RS-422, using adapter cable (selectable)
1PPS (1 pulse-per-second)	Supported on both LEMO and 26-pin D-sub
Event In	Supported on LEMO
USB	USB v2 (supports USB-PD charging)
Ethernet	Through a multi-port adapter (P/N 57168)
Wi-Fi	Fully-integrated, fully-sealed 2.4 GHz Wi-Fi module Simultaneous access point (AP) and client modes
Bluetooth wireless technology ¹⁰	Fully-integrated, fully-sealed 2.4 GHz Bluetooth module
Cellular (R750)	Fully-integrated, fully-sealed LTE compliant module Bands 1:2:3:4:5:7:8:12:18:19:20:28 (Verizon not supported)
Cellular (R750-2)	Fully-integrated, fully-sealed LTE compliant module Nano-SIM card Verizon supported FDD-LTE: bands 1, 2, 3, 4, 5, 7, 8, 12, 13, 18, 19, 20, 26, 28, 66 TD-LTE: bands 38, 40, 41 UMTS (WCDMA/FDD): bands 1, 3, 2, 4, 5, 6, 8, 19 Quad Band GSM: 850, 900, 1800, 1900 MHz
¹⁰ Bluetooth type approvals are country specific. For more information, contact your local Trimble office or representative.

Network protocols
HTTP (web browser interface)	HTTP, HTTPS
NTP Server	Yes
TCP/IP or UDP	Yes
NTRIP	NTRIP v1 and v2, Client, Server, and Caster modes
mDNS/uPnP Service discovery	Yes
Dynamic DNS	Yes
eMail alerts	Supports SSL/TLS secure email servers

Integrated radio (hardware dependent) (R750)
Also see Internal radio and Compliance notices
	Fully-integrated, internal 403 MHz to 473 MHz or 902 to 928 MHz; Rx/Tx
450 MHz	12.5 kHz or 25 kHz spacing available
Sensitivity	-114 dBm (12 dB SINAD)
Transmit power (450 MHz)	0.5 W, 2.0 W (2.0 W available only in certain countries)
900 MHz	Fully-integrated, internal 900 MHz; Tx/Rx (1.0 W)
Frequency approvals (902 to 928 MHz)	Australia, Canada, New Zealand, USA
Frequency approvals (403 to 473 MHz)	Worldwide and depending on the local required licensing

Integrated radio (hardware dependent) (R750-2)
Also see Internal radio and Compliance notices
	Dual-band (selectable): 410 to 475 MHz: Worldwide excluding S. Africa, Thailand, and UAE (depending on the local licensing) (P/N 218500-50). 900 MHz: Fully integrated, internal 900 MHz radio; Tx/Rx 1 W transmit power (P/N 218500-50). 450 MHz only (ETSI compliant for S. Africa, Thailand, and UAE): 403 to 473 MHz (P/N 218500-40). No UHF (P/N 218500-00).
450 MHz	12.5 kHz or 25 kHz spacing available
Sensitivity	-114 dBm (12 dB SINAD)
Transmit power	0.1 W, 0.5 W, 1.0 W (configured by Trimble Dealer)
Frequency approvals	403 to 473 MHz (P/N 218500-40) ETSI compliant 410 to 475 MHz (P/N 218500-50) Worldwide excluding UAE/S. Africa/Thailand (depending on the required local licensing)
900 MHz	Fully-integrated, internal 900 MHz; Tx/Rx (1.0 W)
Frequency approvals (902 to 928 MHz)	Australia, Canada, USA

Internal MSS demodulator (L-band)
Channels	2
Frequency range	1525 to 1559 MHz
Correction services	Trimble CenterPoint RTX, OmniSTAR, and Fugro MarineStar. Correction services supported are subject to regional availability.

Internal MSS demodulator (L-band)

Channels

Frequency range

1525 to 1559 MHz

Correction services

Trimble CenterPoint RTX, OmniSTAR, and Fugro MarineStar.

Correction services supported are subject to regional availability.

Cellular support
Internet-based correction streams: (IBSS, VRS, NTRIP)	Internal LTE modem Connected smartphone Connected Trimble controller (Siteworks, Trimble Access™)
Carriers	Bands 1:2:3:4:5:7:8:12:18:19:20:28 (Verizon not supported)
Remote access	Using DynDNS and appropriate service

Input/Output
Correction data	CMR, CMR+™, RTCM 2.x, RTCM 3, RTCM 3.3 (MSM), MSS (Marinestar, Trimble CenterPoint RTX)
Data outputs	NMEA 0183, NMEA 2000, GSOF, 1PPS time tags, RT17, RT27. See Data Logging menu.
Data inputs	Event
Maximum data rate	50 Hz (depending on data type)

Features and upgrades
Standard features	RTX rover, BeiDou, Galileo, GLONASS, GPS, SBAS, QZSS, 3F, xFill, NMEA, Wi-Fi, logging, field radio, moving base Standard features depend on country compliance for Wi-Fi and LTE.
Raw data logging (.T02, .T04)	9.25 GB internal. Raw data logging (.T02 and T04 files). See Data Logging menu.
Precision upgrades	See Available upgrades.
Signal/Constellation upgrades	All constellations and signals are included as standard.
Feature upgrades	See Available upgrades.