Leica SpiderQC 7.11: Professional GNSS Reference Station Network Quality Control Software

Leica SpiderQC 7.11 is a comprehensive GNSS data analysis and quality control software solution designed for reference station networks . It serves as the perfect companion to Leica GNSS Spider or any other reference station software, providing network operators with powerful tools to ensure their GNSS infrastructure is operating at peak performance .

SpiderQC processes GPS (including L2C and L5), GLONASS, BeiDou, and Galileo (including AltBOC) data in standard RINEX format, making it compatible with all leading reference station software and receivers including Leica GR10, GR25, GR30, GR50, and GMX series .

The software provides a comprehensive suite of tools for network quality monitoring, including traffic light status indicators, HTML-based reports, real-time maps, and automated alerts via email or SMS . It is an essential tool for CORS (Continuously Operating Reference Stations) network operators, deformation monitoring specialists, and any organization requiring high-integrity GNSS positioning services.

???? Primary Users

This professional GNSS network analysis software is designed for:

• GNSS Network Operators & Managers monitoring performance and integrity of reference station networks in real-time.

• Geodetic & Surveying Engineers assessing site suitability, data quality, and network RTK correction accuracy.

• Deformation Monitoring Specialists detecting and visualizing movements of critical infrastructure (bridges, dams, landslides).

• CORS Network Administrators ensuring continuous GNSS data quality and service availability.

• Land Surveyors & GIS Professionals evaluating correction quality before field surveys using NOVA web maps

⚡ Key Features & Capabilities

????️ Site Assessment & Quality Control

SpiderQC helps you select the optimal location for your reference station before installation and continuously monitors data quality afterward .

Site Evaluation Tools:

• Evaluate code and phase multipath levels

• Check for RF interference and signal attenuation

• Measure data completeness and quality

• Assess satellite visibility and tracking performance

Quality Check Feature:

• Verify quantity (tracking information, data gaps)

• Assess quality (cycle slips, multipath, SNR)

• Validate format (RINEX standard compliance) 

Automated Monitoring:

• Continuous data quality surveillance after installation

• Traffic light status for instant quality overview

• Alerts when site conditions degrade due to environmental changes 

???? Network RTK Performance Monitoring

The innovative NOVA (Network Online Visualisation of Accuracy) feature enables visualization of spatial and temporal positioning quality across your network .

NOVA Capabilities:

• Real-time maps showing residual ionosphere error distribution

• Troposphere and orbit error visualization

• Comparison between single-base and network RTK corrections

• Identification of network “hot spots” and problem areas 

User Benefits:

• Network operators can quantify the benefit of network corrections

• RTK rover users can view web maps to select optimal correction source

• Assurance of correction quality for specific survey locations 

???? Reference Station Integrity Monitoring

SpiderQC continuously monitors the quality and availability of corrections from your network .

Integrity Statistics:

• Accuracy and precision metrics

• Availability and reliability calculations

• Real-time threshold monitoring

• Automated warnings when limits are exceeded 

Implementation Options:

• Using Leica GNSS Spider Real Time Positioning

• Fixed rover stations within the network

• Integration with any NMEA-compatible positioning engine

????️ Deformation Monitoring

Detect and visualize movements of reference stations or critical infrastructure including bridges, dams, landslides, and buildings .

Monitoring Capabilities:

• High-precision tilt measurements via Leica Nivel 210 inclination sensors

• Integration with real-time and post-processing engines (GNSS Spider, Bernese)

• Support for NMEA and SINEX data formats 

Visualization Options:

• Time series plots

• Scatter diagrams

• Vector maps

• 2D and 3D displacement displays

• Longitudinal, transverse, easting, northing, and height displacements 

Limit Checking:

• Three levels of absolute limits for:

  • Longitudinal, transverse, and height displacements

  • 2D and 3D displacements

  • 2D and height accuracy

  • Availability percentage

  • X-tilt and Y-tilt

???? Data Management & Reporting

RINEX Data Management:

• Concatenation of multiple RINEX files

• Decimation (reduction) of data sampling rates

• Format conversion and validation 

Reporting Tools:

• Traffic light status indicators for instant assessment

• HTML-based detailed reports

• Customizable web pages and graphs

• Email and SMS alert system

• Command line integration for automated actions 

???? Data Format & Integration Support

Supported Formats:

Communication Links:

• TCP/IP network connections

• Serial (RS-232) interfaces

• SQL database integration

• Direct link to Leica GNSS Spider and Leica SpiderWeb for easy configuration 

????️ Multi-Constellation & Multi-Frequency Support

SpiderQC processes data from all major GNSS constellations:

???? What’s New in Version 7.11

• Enhanced Galileo Support – Full processing of Galileo AltBOC signals

• Improved Multi-GNSS Integration – Optimized processing for BeiDou and GLONASS data

• Extended Deformation Monitoring – Enhanced algorithms for infrastructure movement detection

• Updated Reporting Features – More detailed HTML reports with improved visualization

• Performance Optimizations – Faster processing of large reference network datasets

• Security Updates – Enhanced authentication and data protection features

Note: Please refer to Leica Geosystems official documentation for complete release notes and version-specific features.