Oscar-Trek, Tersus's premier visual RTK product, integrates a high-definition camera, lMU, and GNSS for effortless non-contact measurement. It allows users to capture images and measure points in the field or later in the office. The user-friendly design enhances efficiency,

making it ideal for engineering surveying.

For details, please visit: https://www.tersus-gnss.com/product/oscar_trek_gnss_receiver

The resolution is 1920×1200, which is approximately 2.3 MP.

To ensure accuracy, consider the following tips:

(1) Complete the sufficient initialization process.

(2) Ensure the angle between the lines from the camera to the target point is greater than 30 degrees when the target enters or exits the camera’s view.

(3) Walk in a straight line and avoid sudden or sharp rotations of the device.

(4) It is recommended to take at least 6 photos during the measurement process for better accuracy.

(5) Measure in environments with good lighting, wide-open conditions and clear feature points to improve the clarity and reliability of the measurement.

The Oscar, ExtremeRTK™ Patented Technology-powered GNSS receiver with calibration-free Tilt Compensation is engineered for challenging environments.

The LUKA GNSS Receiver is a new generation Ultra-compact IMU-GNSS receiver, which is small and light, easy to carry and operate.

RTK involves a stationary base station and one or more mobile GPS receivers, also known as rovers. Provided that the base station has continuous line-of-sight to each rover, it transmits GPS corrections to each in real time using radio waves. If a sufficient number of satellites are visible, RTK can provide a fixed position within centimeter-level accuracy. 

RTK stands for Real-Time Kinematic. It refers to the process in which position data is corrected in real-time. In contrast, PPK, or Post-Processed Kinematic, corrects the data after the data collection has been completed.

PPK can offer greater accuracy than RTK, it is widely used for the drones. But there are situations where real-time corrections are preferable, such as in autonomous navigation.

Single: Three-dimensional coordinates computed by the receiver without relying on any differential correction information.

Fixed: When using carrier phase observations for positioning, ambiguities can occur. Theoretically, these ambiguities are integers. Once the integer ambiguities are resolved by the algorithm, positioning accuracy greatly improves.

Float: Sometimes, resolving ambiguity does not result in an integer solution but rather a floating solution.

Typically, two popular modes are available: radio mode and network mode, which includes both single base station mode and VRS (Virtual Reference Station) mode.

Yes, RTK can communicate with third-party brands using international general communication protocols, including radio and network protocols, and standard RTCM data transmission. As long as these parameters are compatible, working together is possible.

It depends on the selected working mode, generally a 5-15km radius for radio base stations and a 30-40km radius for network single base stations. If you work in VRS mode within the CORS stations network, there is no need to consider the distance.

High-Precision Static (RMS): - Horizontal: 2.5mm+0.1ppm - Vertical: 3.5mm+0.4ppm

Single Base Real Time Kinematic (RMS): - Horizontal: 8mm+1ppm - Vertical: 15mm+1ppm

Network Real Time Kinematic (RMS): - Horizontal: 8mm+0.5ppm - Vertical: 15mm+0.5ppm

And for tilt survey:

Tilt Compensation Accuracy (No tilt angle limit ): ≤2cm(within 60°)

The Nuwa is field collection software for all GNSS receivers. It is capable of configuring base and rover stations, setting up stake points, stake line, detail survey and handling calculation and conversion for distance, angle and area with COGO. 

Tersus Geo Office 2 is a desktop data post processing software based on Windows OS, designed by Tersus GNSS Inc. and all right reserved. Tersus Geo Office 2 (hereinafter referred to as TGO2) has various functions, covering multiple business modules for professional users, supporting GNSS post-processing, online and imported basemap display, road design and inspection, RTK project processing and point clouds data processing.