Superior GNSS Technology
Each Trimble R8s comes integrated with powerful Trimble 360 tracking technology that supports signals from all existing and planned constellations. Trimble 360 technology can expand the reach of your GNSS rover to sites that were previously inaccessible due to moderate obstructions, for example large cranes, by taking advantage of the availability of additional satellite signals.


Features
- Advanced satellite track with Trimble 360 receiver technology
- Intuitive Trimble Field Link Interface - Layout workflow software designed for the MEP contractor
- Satellite tracking means minimal setup time

What's in the Box?
We created an industry-leading field solution by pairing the Trimble R8s GNSS receiver with a powerful Trimble tablet controller loaded with our easy‑to-use Trimble Field Link software. Trimble Field Link software offers the features and capabilities to simplify everyday work. The streamlined workflow designed for the MEP contractor guides your layout crew through common project types including, top of deck layout, equipment pads, underground utilities, light pole placement, excavation and trenching locations, enabling them to get the job done faster. Once you’re back in the office, Trimble Field Link enables you to import your point data back to your construction model with confidence.
Technical Specifications
Performance specifications1
Measurements
- Advanced Trimble Maxwell™ 6 Custom Survey GNSS chips with 440 channels
- Future-proof your investment with Trimble 360 tracking
- High precision multiple correlator for GNSS pseudorange measurements
- Unfiltered, un-smoothed pseudorange measurements data for low noise, low multipath error, low time domain correlation and high dynamic response
- Very low noise GNSS carrier phase measurements with <1 mm precision in a 1 Hz bandwidth
- Signal-to-Noise ratios reported in dB-Hz
- Proven Trimble low elevation tracking technology
- Satellite signals tracked simultaneously:
- GPS: L1C/A, L1C, L2C, L2E
- GLONASS: L1C/A, L1P, L2C/A, L2P, L3
- Galileo: E1, E5A, E5B
- BeiDou (COMPASS ): B1, B2
- Positioning rates: up to 20 Hz
Positioning performance2
Real Time Kinematic surveying
- Single Baseline <30 km
- Horizontal: 8 mm + 1 ppm RMS
- Vertical: 15 mm + 1 ppm RMS
- Network RTK3
- Horizontal: 8 mm + 0.5 ppm RMS
- Vertical: 15 mm + 0.5 ppm RMS
- Initialization time4: typically <8 seconds
- Initialization reliability4: typically >99.9%
Hardware
Physical
- Dimensions: 19 cm x 10.4 cm (7.5 in x 4.1 in), including connectors
- Weight: 1.52 kg (3.35 lb) with internal battery, internal radio and antenna
- 3.81 kg (8.40 lb) items above plus range pole, controller & internal radio
- Operating Temperature5: –40° C to +65° C (–40° F to +149° F)
- Storage Temperature: –40° C to +75° C (–40° F to +167° °F)
- Humidity: 100%, condensing
- Ingress Protection: IP67 dustproof, protected from temporary
- immersion to depth of 1 m (3.28 ft)
Shock and vibration
Tested and meets the following environmental standards:
- Shock: Non-operating: Designed to survive a 2 m (6.6 ft) pole drop onto concrete. Operating: to 40 G, 10 msec, sawtooth
- Vibration: MIL-STD-810F, FIG.514.5C-1
Electrical
- Power 11 V DC to 24 V DC external power input with over-voltage protection on Port 1 (7-pin Lemo)
- Rechargeable, removable 7.4 V, 2.8 Ah Lithium-ion smart battery
- Power consumption is <3.2 W in RTK rover mode with internal radio and Bluetooth® in use6
- Operating times on internal battery7:
- 450 MHz receive only option: 5.0 hours
- 450 MHz receive/transmit option (0.5 W): 2.5 hours
Communications
- Serial: 3-wire serial (7-pin Lemo) on Port 1; full RS-232 serial (Dsub 9 pin) on Port 2
- Radio Modem1: fully Integrated, sealed 450 MHz wide band receiver/transmitter with frequency range of 403 MHz to 473 MHz:
- Transmit power: 0.5 W
- Range: 3–5 km typical / 10 km optimal8
- Bluetooth: fully integrated, fully sealed 2.4 GHz communications port (Bluetooth)9
Data Formats
- CMRx
Supported Trimble Controllers1
- Trimble Field Tablet
Certifications
- FCC Part 15 (Class B device), Part 15.247 and Part 90; ICES-003, RSS-210 and RSS-119; CE Mark; C-Tick; Bluetooth EPL
- Based on Trimble R8s GNSS receiver configuration
- Precision and reliability may be subject to anomalies due to multipath, obstructions, satellite geometry, and atmospheric conditions. The specifications stated recommend the use of stable mounts in an open sky view, EMI and multipath clean environment, optimal GNSS constellation configurations, along with the use of survey practices that are generally accepted for performing the highest-order surveys for the applicable application including occupation time appropriate for baseline length. Baselines longer than 30 km require precise ephemeris and occupations up to 24 hours may be required to achieve the high precision static specification.
- Network RTK PPM values are referenced to the closest physical reference station.
- May be affected by atmospheric conditions, signal multipath, obstructions and satellite geometry. Initialization reliability is continuously monitored to ensure highest quality.
- Receiver will operate normally to –40° C, internal batteries are rated to –20° C, optional internal cellular modem operates to -40° C.
- Tracking GPS and GLONASS
- Varies with temperature and wireless data rate. When using a receiver and internal radio in the transmit mode, it is recommended that an external 6 Ah or higher battery is used.
- Varies with terrain and operating conditions.
- Bluetooth type approvals are country specific.