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 :
- 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
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 |
1000 MHz | to 0.6 m (24 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
The new 2600 MHz is an ultra-high resolution antenna used to inspect concrete structures to locate embedded rebar, post tension cables and conduits.
- Center Frequency: 2600 MHz
- Depth Range: to 0.4 m (12 in)
- Weight: 1.8 kg (4 lbs)
- Dimensions: 3.8x10.16.5 cm (1.5x4x6.5 in)
- Model 52600
2000 MHz - Palm Antenna
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.
- Center Frequency: 2000 MHz
- Depth Range: to 0.4 m (12 in)
- Antenna Weight: .49 kg (1.1 lbs)
- Cable Weight: .95 kg (2.1 lbs)
- Dimensions: 104.5x91.5x154.7 mm (4.1x3.6x6 in)
- Model 62000
1600 MHz - General Purpose Concrete Antenna
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.
- Center Frequency: 1600 MHz
- Depth Range: to 0.5 m (18 in)
- Weight: 1.8 kg (4 lbs)
- Dimensions: 3.8x10.16.5 cm (1.5x4x6.5 in)
- Model 5100B
1000 MHz - Deep Penetration Concrete Antenna
The 1000 MHz antenna is the state-of-the-art in concrete imaging solution for deeper concrete investigations. This antenna is appropriate in areas where higher frequencies do not provide adequate penetration and lower frequencies do not provide acceptable resolution.
- Center Frequency: 1000 MHz
- Depth Range: to 0.6 m (24 in)
- Weight: 1.8 kg (4 lbs)
- Dimensions: 3.8x10.16.5 cm (1.5x4x6.5 in)
- Model 5101
900 MHz - Shielded Antenna
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.
- 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.), 3101A (International)
400 MHz - Shielded Antenna
The 400 MHz is ideally suited for detection and mapping of utility pipes, as well as shallow engineering and environmental applications.
- Center Frequency: 400 MHz
- Depth Range: 0-4 m (0-12 ft)
- Weight: 5 kg (11 lbs)
- Dimensions: 30x30x17 cm (12x12x6.5 in)
- Model 5103 ( U.S.), Model 5103A (International)
270 MHz - Shielded Antenna
The 270 MHz is ideally suited for detection and mapping of utility pipes, as well as shallow engineering and environmental applications.
- 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 5104 ( U.S.), Model 5104A (International)
200 MHz - Shielded Antenna
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.
- 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.), Model 5106A (International)
100 MHz - Shielded Antenna
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
*/ 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
*/ 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
.
3200 Multiple Low Frequency Antenna
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.
- Center Frequency: 15-80 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
1.0 and 2.0 GHz Horn Antenna
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-20 system.
FCC-approved antennas available for US customers.
*/ 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)
- Model 4105
-------------------------
- 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
- Model 4105 NR
*/ 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 4108