CORS Base Station

The FastRTK CORS Base Station is a complete, permanently-installed reference station that provides continuous RTK corrections to your entire operation. Built on a Raspberry Pi platform running FastRTK software, it delivers enterprise-grade reliability at a fraction of traditional CORS costs.

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Key Features

Always-On Operation

• 24/7 continuous GNSS tracking
• Automatic recovery from power outages
• Hardware watchdog for maximum uptime
• Remote monitoring and alerts

Multi-Constellation GNSS

• GPS L1/L2/L5
• GLONASS L1/L2
• Galileo E1/E5a/E5b
• BeiDou B1/B2/B3

Professional-Grade Receiver

• Survey-grade GNSS module
• Centimeter-level accuracy
• 555+ channels
• Low phase noise

Network Connectivity

• Gigabit Ethernet
• Optional cellular modem
• Static IP support
• VPN compatible

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Specifications

GNSS Performance

Specification	Details
Horizontal Accuracy	±1-2 cm RTK
Vertical Accuracy	±2-3 cm RTK
Update Rate	1 Hz standard, up to 20 Hz
Cold Start	< 60 seconds
Reacquisition	< 1 second

Hardware

Specification	Details
Processor	Raspberry Pi 4 (4GB RAM)
Storage	32GB+ microSD
Receiver	Survey-grade multi-GNSS
Antenna	Geodetic-grade choke ring or survey antenna

Power

Specification	Details
Input	100-240V AC
Consumption	~15W typical
Backup	UPS recommended

Environmental

Specification	Details
Operating Temp	-20°C to +60°C
Humidity	0-95% non-condensing
Enclosure	Indoor rack mount or weatherproof outdoor

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Software Features

The CORS Base Station runs the full FastRTK software suite:

NTRIP Caster

• Multiple concurrent mountpoints
• Unlimited user connections
• NTRIP v1 and v2 support
• Source table management

User Management

• Individual user accounts
• Subscription expiration dates
• Concurrent connection limits
• Mountpoint-specific access

RINEX Logging

• Automatic hourly files
• Configurable intervals (1s, 5s, 15s, 30s)
• Multi-constellation recording
• Cloud backup support

Real-Time Dashboard

• Live position monitoring
• Connected user tracking
• Data rate statistics
• System health alerts

Stream Relay

• Relay corrections from other CORS networks
• Connect to state/regional networks
• Automatic failover

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Installation Options

Indoor Rack Mount

• Standard 19" rack enclosure
• 1U or 2U configurations
• Integrated UPS option
• Ethernet connectivity

Outdoor Pole Mount

• Weatherproof enclosure (IP66)
• Pole or wall mount bracket
• Integrated lightning protection
• Solar power option

Antenna Options

• Geodetic choke ring antenna (highest accuracy)
• Survey-grade antenna (cost-effective)
• Timing antenna (compact)

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Network Architecture

                    ┌─────────────────┐
                    │  GNSS Antenna   │
                    └────────┬────────┘
                             │
                    ┌────────▼────────┐
                    │  CORS Base      │
                    │  Station        │
                    └────────┬────────┘
                             │
              ┌──────────────┼──────────────┐
              │              │              │
       ┌──────▼──────┐ ┌─────▼─────┐ ┌─────▼─────┐
       │ Field Rover │ │ RTK Rover │ │ Machine   │
       │ (Survey)    │ │ (GIS)     │ │ Control   │
       └─────────────┘ └───────────┘ └───────────┘

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Deployment Guide

Site Requirements

1. Clear Sky View

   • Unobstructed view above 15° elevation
   • Away from reflective surfaces
   • Minimal multipath environment

2. Stable Monument

   • Fixed antenna mount
   • Known coordinates (survey-grade)
   • Protected from disturbance

3. Network Access

   • Reliable internet connection
   • Static IP recommended
   • Firewall ports: 2101, 10000

4. Power

   • Dedicated circuit
   • UPS for continuous operation
   • Surge protection

Initial Setup

1. Install antenna on stable monument
2. Connect receiver to network
3. Access web interface at device IP
4. Set reference coordinates
5. Configure mountpoints and users
6. Test with field receiver

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Integration

Compatible Software

• ArcGIS Field Maps (via LaserSoft Connect)
• Eos Tools Pro
• Any NTRIP-compatible GIS app
• Survey controllers (Trimble, Leica, Topcon)

Compatible Receivers

• Eos Arrow Series
• Trimble R-Series
• Leica GS-Series
• Any NTRIP client receiver

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What's Included

• FastRTK CORS unit (Raspberry Pi + receiver)
• Pre-configured microSD card
• Power supply
• Quick start guide
• 1-year software updates

Optional Accessories

• Geodetic antenna
• Survey tripod/mount
• Weatherproof enclosure
• Cellular modem
• UPS backup

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