Ground Penetrating Radar Systems: 200 MHz HyperStacking Antenna

The GS Series has been introduced by the GSSI as the next-generation class of high-performance antennas that target applications that need deeper penetration depths. The first antenna in the series is known as the 200 HS.

Ground Penetrating Radar Systems: 200 MHz HyperStacking Antenna

Image Credit: Geophysical Survey Systems

This digital and wireless antenna features a 200 MHz center frequency and applies GSSI’s proprietary HyperStacking® technology. This technology enhances signal-to-noise performance and raises depth penetration under all soil conditions. The GS Series seems to be perfect for geotechnical, geophysical and environmental applications that need high reliability under difficult survey conditions.

Ground Penetrating Radar Systems: 200 MHz HyperStacking Antenna

Image Credit: Geophysical Survey Systems

Applications

  • Archaeological investigations
  • Water table mapping
  • Sinkhole areas
  • Deeper utility detection
  • Bedrock profiling
  • Stratigraphy
  • Bathymetry

Components

  • Panasonic® Toughpad G1
  • Controller: SIR® 4000 (with WiFi Module)
  • Tow handle
  • 200 HS Antenna
  • Dual-bay battery charger
  • Lithium-ion battery (4)

Purpose-Built Tools for the Geophysical Industry

The 200 MHz HyperStacking Antenna offers greater resolution data compared to what is earlier available and has greater depths at a lower frequency range.

Ground Penetrating Radar Systems: 200 MHz HyperStacking Antenna

Image Credit: Geophysical Survey Systems

Acquire Data Wirelessly

Users can determine geophysical characteristics easily with the help of a wireless HS Module and 200 HS. The HS Module links the SIR 4000 or Panasonic Toughpad G1 to the antenna and enables the user to leverage a single HS Module throughout all GS Series antennas.

Ground Penetrating Radar Systems: 200 MHz HyperStacking Antenna

Image Credit: Geophysical Survey Systems

HyperStacking Technology and Improved Depth

The GS Series makes use of the patented HyperStacking Technology to offer clearer data, from superficial features to deeper characteristics. The 200 HS antenna helps to achieve greater depth penetration, almost double compared to traditional GPR antenna designs.

Ground Penetrating Radar Systems: 200 MHz HyperStacking Antenna

Image Credit: Geophysical Survey Systems

System Versatility

The GS Series accommodates new and existing users with two controller choices; SIR 4000 is available with a WiFi module, or Panasonic Toughpad tablet. Thanks to its IP 65 rating, the 200 HS antenna has the ability to resist dust and is highly water-resistant.

Ground Penetrating Radar Systems: 200 MHz HyperStacking Antenna

Image Credit: Geophysical Survey Systems

Advanced Features

The GS Series integrates advanced features that have been particularly developed for survey efficiency, such as an integrated GPS, and can house an external GPS mount. Users can visualize data on the tablet with the help of a GIS map mode. Also, they can use accessories to tailor survey collection modes.

Ground Penetrating Radar Systems: 200 MHz HyperStacking Antenna

Image Credit: Geophysical Survey Systems

Data Examples

Integrated GIS

Tablet screen image of 2D GPR data indicative of flood plain deposits located in the Northeast US (left) and geographic information system (GIS) data (right).

Ground Penetrating Radar Systems: 200 MHz HyperStacking Antenna

Image Credit: Geophysical Survey Systems

Real-Time Data Processing

The data for stratigraphic analysis of fluvial deposits in Northeastern United States was collected using the SIR 4000 and 200 HS antenna.

Ground Penetrating Radar Systems: 200 MHz HyperStacking Antenna

Image Credit: Geophysical Survey Systems

High-Resolution and Deeper Depth of Penetration

This detailed and deep (400+ ns) stratigraphic section from Alton, New Hampshire, USA, showed well-stratified glacio-lacustrine deltaic sets above possible glacial till and bedrock. This profile shows the excellent depth penetration of the 200 HS antenna while highlighting the antenna’s superior near-surface resolution.

Ground Penetrating Radar Systems: 200 MHz HyperStacking Antenna

Image Credit: Geophysical Survey Systems

Specifications

Source: Geophysical Survey Systems

200 HS Antenna
Center frequency 200 MHz
Max depth 21 m (70 ft)*
Battery life 4 hours
Environmental rating IP65
Vibration Mil-STD-810G Method 514.6C Category 9
Operating temperature -10 °C to 40 °C external (14 °F to 104 °F)
Weight 17.9 kg (39.6 lbs)
Dimensions 64.8 x 64.8 x 34.3 cm (25.5 x 25.5 x 13.5 in)
Model 50200HS
Data acquisition
Data format RADAN® (dzt)
Output data format 32-bit
Scan interval Up to 200 scans/sec
Number of samples per scan 512, 1024, 2048, 4096, 8192
Operating modes Continuous (time), Survey Wheel (distance triggered), or Point Mode
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
Signal-to-noise ratio 171 dB
Standard real-time filters Infinite Impulse Response (IIR) - Low and High Pass, vertical and horizontal
Advanced real-time features Surface Position Tracking, Signal Noise Floor Tracking, Adaptive Background Removal, Dynamic Gain Control
Internal GPS accuracy Autonomous 2.5 m (8.2 ft), SBAS 2.0 m (6.6 ft)
External GPS Bluetooth
Wireless range 15 m (50 ft)
Input/Output USB, rugged Ethernet, survey wheel and marker input, digital connector

* Under ideal soil conditions

Accessories

200 HS Wheel Kit

The wheel kit is consistent for the 200 HS antenna and also for the future GS Series antennas. This kit is available with four wheels and correct mounting brackets to fit onto the antenna. The wheel kit will help reduce the wear on the bottom of the antenna and is constructed for simpler travel in high wear data collection areas like concrete and asphalt.

Ground Penetrating Radar Systems: 200 MHz HyperStacking Antenna

Image Credit: Geophysical Survey Systems

GS Series Transit Case

This custom foam Pelican Case has been developed for the GS Series accessories. This transit case retains the Panasonic Toughpad Tablet, SIR 4000 WiFi Module, HS Module, tow handle, optional wheel kit, batteries and battery charger.

Ground Penetrating Radar Systems: 200 MHz HyperStacking Antenna

Image Credit: Geophysical Survey Systems

Model 620 Survey Wheel

The Model 620 survey wheel offers distance encoding and accurate linear positioning along a transect. This survey wheel is proper for all mid-to-low frequency antennas.

Ground Penetrating Radar Systems: 200 MHz HyperStacking Antenna

Image Credit: Geophysical Survey Systems

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