Tersus Oscar Ultimate
Precision in the Toughest Conditions
The Tersus Oscar Ultimate is a high-performance, all-purpose GNSS receiver engineered for professionals who need maximum precision and flexibility without compromise. Built around Tersus’ Extreme RTK Engine, the Oscar Ultimate keeps delivering precise RTK fixes in heavy canopy, urban interference, and remote terrain, where conventional GNSS receivers are pushed to their limits.
Designed to seamlessly adapt to your workflow, the Oscar Ultimate functions effortlessly as a rover or base station. With onboard controls, an integrated display, multiple correction options (including TAP), limitless calibration-free tilt compensation, and hot-swappable batteries, it’s a powerful field solution for surveying, GIS, construction, utilities, drone operations, and advanced positioning applications.
Top Features:
Multi-Constellations & Frequencies
Centimeter-Level Accuracy
Unlimited Tilt Compensation
NFC Connection
Field Value
Office Value
Precision and Flexibility That’s Built for the Job.
Any Job.
GNSS Positioning
Full-featured RTK GNSS with tilt-capable IMU sensor fusion.
Connectivity
Built-in 2-watt UHF radio, 4G LTE modem, Wi-Fi, and NFC.
Data Storage
16 GB onboard memory for RINEX data logging.
Ruggedness
IP68-rated housing for harsh field conditions; compliant with MIL-STD-810G and FIG 514.6C-1.
Power Options
Swappable batteries for uninterrupted rover operation, or external deep-cycle power for base station use.
Applications
Flexible solution for GCP collection, RTK base stations, and versatile mapping workflows.
Configuration
Web-based UI accessible from any Wi-Fi device, or local configuration via on-screen display and physical buttons.
Correction Services
Free access to Tersus Caster Service for transmitting and receiving corrections over cellular networks; supports multi-brand rovers from a single base.
NUWA Field Software
- Background imagery and vector support.
- Coordinate system management & Site Calibrations.
- Versatile file type support – import/export.
- CSD, FXL, COD Code list support.
- And more…
Built In-House by Tersus.
Built to Perform for You.
At Tersus, building “just another RTK system” is never the goal. Tersus designs and develops its own GNSS boards and core RTK technologies, building solutions from the ground up rather than relying on generic, off-the-shelf components. It’s a simple belief that guides every receiver we’ve built: build better, or don’t build at all. Every receiver delivers high-performance, centimeter-level RTK accuracy without unnecessary cost, providing reliability and precision in even the toughest environments.
