FJD Trion V1t RTK GNSS Receiver with IMU

The FJD Trion V1t is a professional multi-constellation RTK GNSS receiver with 1,408 tracking channels, an integrated IMU tilt sensor, internal UHF radio and Galileo-based PPP support. It is designed for centimetre-level positioning, surveying, mapping, construction layout and other precision measurement tasks.

The receiver is intended for land surveyors, civil engineers, construction teams, agricultural contractors, machine-control specialists, mapping professionals and organisations that require reliable high-accuracy positioning in the field.

Typical applications include topographic surveying, point measurement, stakeout, road construction, precision agriculture, engineering monitoring, resource exploration, digital machinery workflows and general mapping projects.

Yes. The V1t can be configured for base-station or rover operation. In a base-rover setup, one receiver transmits RTK corrections while the second receiver uses those corrections to calculate centimetre-level positions.

Yes. When used with compatible field software, the receiver supports point stakeout, line stakeout, road stakeout, DTM stakeout and CAD-based stakeout workflows. This makes it suitable for setting out construction points, alignments, boundaries and design features.

Yes. Its RTK positioning, tilt compensation and multi-constellation tracking can support accurate field mapping, boundary measurement, infrastructure layout and other agricultural positioning tasks. Compatibility with specific guidance or machine-control systems should be confirmed before purchase.

The specified RTK accuracy is ±(8 mm + 1 ppm) horizontally and ±(15 mm + 1 ppm) vertically under suitable conditions. Actual field accuracy depends on satellite visibility, correction quality, baseline length, atmospheric conditions and the surrounding environment.

The integrated IMU is specified to maintain approximately 2.5 cm horizontal accuracy at a 30-degree tilt. The receiver supports tilt angles up to 60 degrees, although performance can vary as the angle and field conditions become more demanding.

No. The built-in IMU enables tilt-compensated measurement, allowing points to be collected without holding the pole perfectly vertical. This is useful beside walls, under vehicles, near obstacles and in other locations where levelling the pole is difficult.

The receiver tracks signals from GPS, GLONASS, Galileo, BeiDou, QZSS, SBAS and IRNSS. Its 1,408 channels allow it to monitor a large number of satellite signals simultaneously for improved availability and positioning reliability.

The specified RTK initialization time is under five seconds when the baseline is shorter than 10 km and operating conditions are suitable. Cold start is specified at under 20 seconds, hot start at under 10 seconds and signal reacquisition at under one second.

HAS-PPP is a Precise Point Positioning function that uses correction information associated with the Galileo E6 signal. It can provide positioning support in areas covered by the service without a nearby local RTK base, although its specified accuracy and convergence behaviour differ from conventional centimetre-level RTK.

The receiver can use corrections from a compatible local base station through its internal UHF radio or receive network RTK corrections through a connected field controller or tablet with internet access. The correct method depends on the available infrastructure and field workflow.

No. The receiver does not include an internal mobile-data modem. For NTRIP or network RTK corrections, internet access must normally be provided by a connected controller, tablet, smartphone hotspot or another compatible communication device.

The internal radio is available in 410–470 MHz or 902–928 MHz configurations, depending on the model and region. Local radio regulations vary, so the permitted frequency range and power setting should be confirmed for the country where the receiver will be used.

The receiver supports commonly used protocols including TRIMTALK, TRIMMARK III, TT450S, TRANSEOT and Satel 3AS 4FSK. Matching frequency, protocol, channel spacing and other radio settings are required when connecting to a third-party base or rover.

It may communicate with compatible third-party receivers, radios and software through supported correction formats, radio protocols and data outputs. Compatibility should be checked for the exact equipment, frequency band, protocol, coordinate workflow and software version involved.

The receiver supports RTCM 3.x and NMEA-0183 for data input and output, with CMR and RTCM 2.x supported as input formats. These formats are commonly used for correction data, positioning information and integration with field systems.

The receiver is designed to work with FJD Trion Survey software on a compatible FJD field controller or tablet. The software supports measurement, drawing, point and line stakeout, road stakeout, DTM stakeout, CAD stakeout and CAD editing functions.

The package contents depend on the selected configuration. The receiver may be supplied separately or as part of a rover or base-rover set with a controller, pole, tripod, radio accessories and software. Check the listed package contents before ordering.

The integrated 6,500 mAh battery is specified for approximately 15 hours in rover mode and 10 hours in base mode under typical conditions. Runtime can vary with radio power, temperature, connectivity, update rate and battery condition.

The receiver supports 30 W USB Power Delivery fast charging. It can also accept 9–32 V DC through the aviation connector, making it possible to use an appropriate external power source for longer base-station sessions.

The receiver has an IP67 rating, meaning it is designed to resist dust and temporary water immersion under the conditions defined by that rating. It is specified for operation from -30°C to +60°C and for storage from -40°C to +70°C.

The receiver includes 32 GB of internal memory. Raw observation and real-time positioning data can be recorded or output at 1, 2, 5, 10 or 20 Hz, depending on the project requirements and software configuration.