Ground Penetrating Radar (GPR) systems - GSSI

 

GPR Antenns from GSSI

Antennas

  • Overview
  • 2600-1600 MHz
  • 900-270 MHz
  • 200-16 MHz
  • Horn Antennas
  • Digital Antennas

Our Past, Present and Future: GPR Antennas

With nearly four decades experience, GSSI continues to design and manufacture the world’s best Ground Penetrating Radar (GPR) antennas. GSSI antennas feature the highest signal-to-noise ratio of any antenna available in the industry, providing the highest quality data with clear and accurate results.

GSSI has developed a series of antennas to meet the needs of a broad range of applications. All antennas are interchangeable with ANY SIR® System. Features include:

  • Rugged, military-style connectors
  • Long-life replaceable wear skids
  • Coated, sealed electronics
  • Rugged, high-density molded cables
  • Shielding to eliminate aboveground interference
  • Operates from -20°C to 50°C

More information: GSSI Antennas Brochure

Center Frequency Depth of Penetration* Typical Applications
2600 MHz to 0.4 m (12 in) Concrete Evaluation
2000 MHz Palm to 0.4 m (12 in) Concrete Evaluation
1600 MHz to 0.5 m (18 in) Concrete Evaluation
900 MHz 0-1 m (0-3 ft) Concrete Evaluation, Void Detection
400 MHz 0-4 m (0-12 ft) Utility, Engineering, Environmental,
Void Detection
270 MHz 0-6 m (0-18 ft) Utility, Engineering, Geotechnical
200 MHz 0-9 m (0-30 ft) Geotechnical, Engineering, Environmental
International
100 MHz 2-15 m (5-50 ft) Geotechnical, Engineering, Mining
16-80 MHz 0-50 m (0-150 ft) Geotechnical
Air-Launched Horn
 
2.0 GHz 0-.75 m (0-2.5 ft) Pavement Thickness and Road Condition Assessment
1.0 GHz 0-.9 m (0-3 ft) Highway and Bridge Deck Evaluations

*Penetration depths may vary depending on soil conditions.

2600 MHz - High Resolution Concrete Antenna

GSSI 2600 MHz antenna

  • Center Frequency: 2600 MHz
  • Depth Range: 0-0.4 m (0-12 in)
  • Weight: 1.8 kg (4 lbs)
  • Dimensions: 3.8x10x16.5 cm (1.5x4x6.5 in)
  • Model 52600S

The new 2600 MHz is an ultra-high resolution antenna used to inspect concrete structures to locate embedded rebar, post tension cables and conduits.

Example of 2600 MHz antenna data

2000 MHz - Palm Antenna

GSSI-2000 MHz Palm Antenna

  • Center Frequency: 2000 MHz
  • Depth Range: 0-0.4 m (0-12 in)
  • Antenna and Cable Weight:
    3 m (10 ft) cable - 1.3 kg (3 lbs)
    7 m cable (22.75 ft) - 1.8 kg (4 lbs)
  • Dimensions (Antenna only):
    104.5x91.5x154.7 mm (4.1x3.6x6 in)
  • Model 62000-003 - 3 m cable
    Model 62000-007 - 7 m cable

 

The new Palm Antenna offers users the ability to reach tightly spaced areas that were previously inaccessible such as corners, against walls and around obstructions.

The Palm Antenna is compatible with the SIR‑3000 and SIR-20 control units. The antenna includes a dedicated survey wheel, a replaceable skid plate, and removable handle to reduce antenna height, if necessary. The Palm Antenna weighs in at approximately one pound.

Example of 2000 MHz Palm Antenna data

1600 MHz - General Purpose Concrete Antenna

GSSI 1600 MHz antenna

  • Center Frequency: 1600 MHz
  • Depth Range: 0-0.5 m (0-18 in)
  • Weight: 1.8 kg (4 lbs)
  • Dimensions: 3.8x10.16.5 cm (1.5x4x6.5 in)
  • Model 51600S

The 1600 MHz is a high-resolution, all-purpose antenna used to inspect concrete structures to locate embedded rebar, post tension cables and conduits. It is used on bridge decks for condition assessment and to determine concrete cover.

Example of 1600 MHz antenna data

900 MHz - Shielded Antenna

GSSI 900 MHz antenna

  • Center Frequency: 900 MHz
  • Depth Range: 0-1 m (0-3 ft)
  • Weight: 2.3 kg (5 lbs)
  • Dimensions: 33x18x8 cm
    (13x7x3 in)
  • Model 3101D (U.S. and Canada),
    3101A (International)

The 900 MHz antenna is designed for applications requiring shallow penetration down to 1 m (3 ft.), including void detection, concrete thickness assessment and shallow pipe location. It can also be used for location of rebar where space is not limited.

Example of 900 MHz antenna data

400 MHz - Shielded Antenna

GSSI 400 MHz antenna

  • Center Frequency: 400 MHz
  • Depth Range: 0-4 m (0-12 ft)
  • Weight: 5 kg (11 lbs)
  • Dimensions: 30x30x17 cm
    (12x12x6.5 in)
  • Model 50400S

The 400 MHz is ideally suited for detection and mapping of utility pipes, as well as shallow engineering and environmental applications.

Example of 400 MHz antenna data

270 MHz - Shielded Antenna

GSSI 270 MHz antenna

  • Center Frequency: 270 MHz
  • Depth Range: 0-6 m (0-18 ft)
  • Weight: 8.6 kg (18.5 lbs)
  • Dimensions: 45x45x17 cm
    (18x18x6.5 in)
  • Model 50270S

The 270 MHz is ideally suited for detection and mapping of utility pipes, as well as shallow engineering and environmental applications.

Example of 270 MHz antenna data

200 MHz - Shielded Antenna

GSSI 200 MHz antenna

  • Center Frequency: 200 MHz
  • Depth Range: 0-9 m (0-30 ft)
  • Weight: 20.5 kg (45 lbs)
  • Dimensions: 60x60x30 cm
    (24x24x12 in)
  • Model 5106 (U.S. and Canada),
    Model 5106A (International)

The 200 MHz can penetrate to a depth of 9 meters (30 feet), making it ideally suited for geotechnical and environmental applications, as well as archaeological investigations.

Example of 200 MHz antenna data

100 MHz - Shielded Antenna

GSSI 100 MHz antenna-monostatic

Monostatic

  • Center Frequency: 100 MHz
  • Depth Range: 2-15 m (5-50 ft)
  • Weight: 13 kg (28 lbs)
  • Dimensions: 25x96x56 cm
    (10x38x22 in)
  • Model 3207AP

GSSI 100 MHz antenna-bistatic

Bistatic

  • Center Frequency: 100 MHz
  • Depth Range: 0-30 m (0-100 ft)
  • Weight: 26 kg (60 lbs)
  • Dimensions: 25x96x56 cm
    (10x38x22 in) each
  • Model 3207F

The 100 MHz antenna is used for deep subsurface applications. The 100 MHz monostatic (left) combines the transmit and receive electronics in a single antenna housing.

The 100 MHz bistatic (bottom, left) is a versatile antenna pair that can operate in three different configurations to optimize performance.

GPR data - 100 MHz monostatic antenna

GPR data-100 MHz bistatic antenna

 

3200 Multiple Low Frequency Antenna

GSSI 3200 MLF antenna

  • Center Frequency: 16-80 MHz adjustable
  • Depth Range: 0-50 m (0-150 ft)
  • Weight: 15-23 kg (33-50 lbs)
  • Dimensions: 120-600 cm in length
    (47-136 in) adjustable
  • Model 3200 MLF

The multiple low-frequency antenna is designed for the deepest radar penetration possible. The antenna design consists of interchangeable elements; by changing the length of the antenna, you change the transmission frequency. This antenna can be deployed in discrete measurements (stacking) or continuous profile data collection modes.

GPR data example - 3200 MLF antenna

1.0 and 2.0 GHz Horn Antenna

GSSI Horn antennas

2.0 GHz

  • Center Frequency: 2 GHz
  • Depth Range: 0-.75 m (0-2.5 ft)
  • Weight: 7.3 kg (16 lbs)
  • Dimensions: 21x55.6x49.5 cm
    (8.25x21.9x19.5 in)
  • Hardware/Software Noise Rejection Filter
  • Protected by U.S. Patents 8,115,667, 8,102,298 and 7,982,657
  • Model 42000S; Smart ID module

1.0 GHz

  • Center Frequency: 1.0 GHz
  • Depth Range: 0-.9 m (0-3 ft)
  • Weight: 7.3 kg (16 lbs)
  • Dimensions: 21x55.6x49.5 cm
    (8.25x21.9x19.5 in)
  • Model 41000S; Smart ID module

The 2 GHz and 1 GHz air-launched (horn) antennas are pavement thickness and road condition assessment tools that can be used at highway speeds with the SIR-30 system.
FCC-approved antennas available for US customers.

42000S Data
GPR data from 2 GHz Model 4105NR horn antenna

41000S Data
GPR data from 1 GHz horn antenna

300 / 800 DF Antenna

  • Center Frequency: 300 and 800 MHz
  • Depth Range 0-7 m (0-21 ft)
  • Weight: 5 kg (12 lbs)
  • Dimensions: 33.5x31x15 cm
    (13.2x12.2x5.9 in)
  • Model 50300/800

Dual Frequency, Smart Antenna

The 300/800 MHz dual-frequency antenna is GSSI’s first digital antenna. The combination of two frequencies allows users to locate targets at depths of up to 5 m (16 ft), ideal for utility, archaeological and environmental surveys.

GPR data from GSSI dual-frequency antenna

   

350 HS Antenna

GSSI-2000 MHz Palm Antenna

  • Center Frequency: 350 MHz
  • Depth Range: 0-12 m (0-40 ft)
  • Antenna Weight: 5 kg (11 lbs)
  • Dimensions: 33.5x31x15 cm
    (13.2x12.2x5.9 in)
  • Model 350HS

More information: GSSI 350 HS Antenna Brochure

Digital, HyperStacking™ Technology

The 350 HS is a state-of-the-art digital antenna designed to work seamlessly with GSSI’s SIR 4000 control unit and the G1 controller used with the UtilityScan DF system. It is easily configurable to accommodate a variety of applications including archaeology, geophysics, utility locating, and more.

This digital antenna includes our revolutionary, patented HyperStacking technology. Our HS technology greatly improves the depth and data resolution performance of traditional RTS technologies.

GPR data from GSSI 350 HS antenna

 
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