GNSS Precise Positioning Solutions

Precise Positioning - GNSS CORS

Professional GNSS positioning system combining Mobile CORS base stations with RTK smartphone receivers for centimeter-level accuracy in surveying, mapping, and geospatial monitoring.

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Two-Component GNSS Positioning System

Our precise positioning solution combines two essential products: the GNSS Mobile CORS reference station and the Smartphone GNSS RTK Receiver D303-RTK for real-time centimeter-level positioning.

GNSS Mobile CORS

CORS Reference Station

Portable CORS Reference Station

A continuously operating reference station system for precise positioning. Collects, records, and transmits GNSS data to enable real-time positioning with centimeter-level accuracy and supports both post-processing and real-time RTK workflows.

Key Capabilities:

Operates as a continuously running GNSS geodetic reference network

Real-time GNSS correction data transmission (RTCM format)

Supports post-processing and real-time positioning workflows

Continuous GNSS data collection, recording, and archival

Smartphone GNSS RTK

D303-RTK

D303-RTK with GNSS Antenna

Android-based mobile GNSS RTK receiver with multi-constellation support for high-precision field surveying and GIS data collection. Integrates seamlessly with CORS network for real-time centimeter-level positioning.

Product Features:

High positioning accuracy with multi-GNSS support (GPS, GLONASS, Galileo, BDS, QZSS)

Android 5.1 OS for field configuration and usability

WiFi and 4G LTE communication for real-time corrections

Integration with GIS software for field survey and measurement

RTK Positioning Workflow

CORS Receives Signals

Mobile CORS base station continuously receives GNSS signals from multiple satellite constellations

Data Processing

System processes raw GNSS data and calculates position correction parameters

Correction Transmission

RTCM correction data transmitted via wireless network to RTK receivers

Precise Positioning

RTK receiver applies corrections to achieve centimeter-level accuracy

D303-RTK Technical Specifications

GNSS System

Channels: 250

Constellations: GPS, GLONASS, Galileo, BDS, QZSS

Frequencies: L1/L2, G1/G2, E1/E5b, B1/B2/B3

RTK Accuracy

Horizontal: 0.02 m + 1 ppm CEP

Vertical: 0.04 m + 1 ppm CEP

Init Time: 30 seconds

Communication

WiFi 2.4/5GHz
4G LTE
Bluetooth 4.0LE

Hardware

Android 5.1 OS
5" Display 720p
IP65 Rated

Complete Technical Details

Operating System

Android 5.1

CPU

Quad-core 64 bits 1.3GHz

RAM / Storage

2GB / 16GB (extendable)

GNSS Mode

GPS + GLONASS + Galileo • GPS + BDS + Galileo

Time to First Fix

Cold Start < 30s • Hot Start: 1s • Re-acq < 1s

Output Rate

1Hz

Display / Touch

5" 1280×720 sunlight readable / Capacitive Multi-Touch

Cellular Network

GSM: B2, B3, B8 • WCDMA: B1, B8 • TDD-LTE: B38, B39, B40 • FDD-LTE: B1, B3

Camera

13MP, autofocus, LED flash

Battery

3.7V 3200mAh

Interface

1× MicroUSB • 1× MicroSD (32GB) • 1× SMA (GNSS antenna)

Protection Rating

IP65, 1.2m drop resistant

Applications

Surveying & Mapping

Cadastral surveying, topographic mapping, geodetic control networks, and boundary demarcation with centimeter-level accuracy for professional surveying applications.

Geospatial Monitoring

Land deformation monitoring, ground subsidence tracking, structural movement detection, and geohazard assessment for infrastructure safety and environmental monitoring.

Infrastructure Monitoring

Dam displacement monitoring, bridge settlement tracking, building deformation assessment, and critical infrastructure health monitoring using precise positioning technology.

GIS Data Collection

Field data collection for GIS databases, asset mapping, utility network surveys, and spatial data acquisition for urban planning and resource management.

Deploy Precise GNSS Positioning

Contact us for consultation on monitoring systems, telemetry, dashboards, or IoT and SCADA integration tailored to your field conditions.