The SIR-30 is the next generation high-performance multi-channel radar control unit. This system can collect up to four channels of data simultaneously with uncompromised performance.

The SIR-30 offers advanced filters and display capabilities for real-time processing, including migration, surface positioning, signal floor tracking and adaptive background removal.

Ideal for high-speed data collection of: measuring pavement layer thickness, detection of cavities, airport runway assessment, detection of fouled/clean ballast and utility detection.

Typical Uses of the SIR-30 include:

  • Road structure assessment
  • Utility designation
  • Bridge deck assessment
  • Rail bed inspection
  • The fastest GPR data acquisition system available
  • Overall system flexibility - compatible with all GSSI antennas
  • Simple, user-friendly graphic interface
  • Solid-state disc internal data storage
  • Internal GPS data logger, or external GPS integration
  • Remote command set
  • 2-year warranty
  • FCC, CE and RSS-220 compliant
Antennas Compatible with all GSSI antennas
Number of Channels Records data from 1 to 4 hardware channels simultaneously
Data Storage Internal memory: 4 channel 500 GB Internal SSD
2 channel 250 GB Internal SSD
GPS data logged internally
Display Modes Linescan and O-scope.
In Linescan display, 256 color bins are used to represent the amplitude and polarity of the signal
Operational Modes Standalone with external monitor and keyboard and also remote command set
Data Acquisition
Data Format RADAN (.dzt)
Scan Rate Interval User-Selectable
Output Data Resolution: 32-bit
1-4 Channels @ 100 KHz PRF
Max Rate (scans/Sec)
256 326
512 178
1024 93
2048 48

1-4 Channels @ 730 KHz PRF
Max Rate (scans/Sec)
256 1375
512 932
1024 563
2048 322
Samples per Scan 256, 512, 1024, 2048
Time Range 0-16,000 nanoseconds full scale, user-selectable
Gain: Manual adjustment from -42 to +126 dB.
Number of segments in gain curve is user-selectable from 1 to 8.
Standard Real-time Filters Linescan and O-scope.
Infinite Impulse Response (IIR) - Low and High Pass, vertical and horizontal
Finite Impulse Response (FIR) - Low and High Pass, vertical and horizontal
Advanced Real-time Filters Migration, Surface Position Tracking, Signal Floor Tracking, Adaptive Background Removal
External Marker Three different inputs/codes: Antenna, Front panel, Accessory connector
Automatic System Setups Linescan and O-scope.
Storage of an unlimited number of system setup files for different survey conditions and/or antenna deployment configurations
Operating Temperature -10°C to 40°C external (14°F to 104°F)
Power 260W max at 95-250VAC 50/60Hz with the AC supply or 30A max continuous at +10VDC to +28VDC
Transmit Rate Up to 730 KHz (International), Up to 100 KHz (US/Canada)
Available Ports Antenna inputs (2 or 4), Survey wheel, Marker, DC power input, Serial RS232 (GPS port), Sync connector, Accessory connector, HDMI video, Ethernet to PC, 4 USB ports
Dimensions 17.7 x 13 x 5.1 in (45 x 33 x 13 cm)
Weight 18.5 lbs (8.4 kg)
Relative Humidity <95% non-condensing
Storage Temperature -40°C to 60°C