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Ground Penetrating Radar Antennas |
Accurate answers require high
quality data, and the key to high quality Ground Penetrating
Radar (GPR) data is the performance of the antennas. GSSI has
over 30 years experience in antenna design and manufacture and
has developed a wide range of antennas to meet the needs of a
broad range of applications. All antennas are interchangeable
with ANY SIR System.
GSSI antennas are durable, reliable and features include:
- Rugged, military-style connectors
- Coated, sealed electronics
- Shielding to eliminate above ground interference
- Components that operate in all temperature conditions (-20°C
to 50°C)
- Low resistance, long-life replaceable wear skids
- Rugged, high-density molded cases
- Heavy duty cables
Ground-Coupled Antennas
| Model |
Center
Frequency |
Depth of
Penetration*
|
Typical Applications |
| 5100 |
1600
MHz |
.5 m |
Concrete Evaluation |
| 3101 |
900 MHz |
1 m |
Concrete Evaluation, Void
Detection |
| 5103 |
400 MHz |
4 m |
Utility, Engineering, Environmental,
Void Detection |
| 5104 |
270 MHz |
6 m |
Utility, Engineering, Geotechnical |
| 5106 |
200 MHz |
7 m |
Geotechnical, Engineering,
Environmental |
| 3207 |
100 MHz |
20 m |
Geotechnical, Engineering,
Mining |
| 3200 MLF |
16 - 80 MHz |
0 - 50 m |
Geotechnical |
| *Penetration depths under good
conditions. Actual penetration depths may vary depending
on matrix conditions. |
Air-Launched Antennas
| Model |
Center
Frequency |
Depth of
Penetration* |
Typical Applications |
| 4105 Horn |
2.2 GHz |
up to
0.75 m depending on medium |
Pavement Thickness and Road
Condition Assessment |
| 4108 Horn |
1000 MHz |
1 m |
Highway and Bridge Deck Evaluations |
| *Penetration depths under good
conditions. Actual penetration depths may vary depending
on matrix conditions. |
GSSI
Antennas
Brochure and Specifications 
Concrete
Antennas
Brochure and Specifications |
Model 5100 - 1.6 GHz
The Model 5100 is a very high-resolution
antenna used to inspect concrete structures to locate embedded
rebar, P.T. cables and conduits. It can also be used on
bridge decks to map thickness of concrete and overlying
cover.
- Unsurpassed data resolution for concrete investigations
- Used to locate objects embedded in concrete,
such as rebar, tendons and conduit
- Map thickness of concrete and overlying cover
- Specially configured for access to small
areas
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Model 3101 - 900 MHz
This high-resolution antenna is designed
for applications requiring shallow penetration down to
1 meter (3 feet).
- Uses include void detection, concrete thickness assessment
and shallow pipe location
- Also for rebar identification on projects where antenna
size is not critical or space is not limited
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Model 5103 - 400 MHz
The Model 5103 is ideally suited for shallow
(down to 3 m) engineering and environmental applications.
- Uses include void detection, concrete thickness assessment
and shallow pipe location
- Also for rebar identification on projects where antenna
size is not critical or space is not limited
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Model 5104 - 270 MHz
The Model 5104 is ideally suited for deeper utility, engineering
and geotechnical applications.
- Locate buried utilities drums and underground storage
tanks
- Identify depth and location of objects of all construction
materials, i.e., concrete pipes, plastic drums and fiberglass
tanks
- Locate utilities and other man-emplaced targets to deeper
depth
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Model 5106 - 200 MHz
The Model 5106 can be used for applications similar to the
5103, but its lower frequency signal penetrates deeper (down
to 9 M) for geotechnical applications.
- Locate utilities and other man-emplaced targets to deeper
depth
- Identify geological features such as bedrock, groundwater
and boulder prior to excavation
- Map landfills, burial trenches and filled-in waste lagoons
on environmental site assessment projects
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Model 3207/3207A - 100 MHz
The Model 3207 is a versatile antenna pair that can be operated
in three different configurations to optimize performance.
- Utilize high-powered transmitters for maximum penetration
- Operate in bistatic or one of two monostatic modes
- Collect common depth point measurements for velocity
analysis
- Antennas are shielded to eliminate external interferences
The Model 3207A provides deep profiling in confined areas
where deployment is difficult.
- Monostatic applications are accomplished by utilizing
a transceiver (both transmit and receive on one electronic
plug-in) in a single antenna housing
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Model 3200 MLF - 16 - 80 MHz
The model 3200 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. Model 3200 can be deployed in discrete
measurement (stacking) or continuous profile data collection
modes.
- Antenna design consists of interchangeable elements
- by changing the length of the antenna, you can change
the transmission frequency
- Two sealed plastic housings contain and protect both
transmit and receive electronics and batteries for fiber
optic trigger
- Designed for ease of use in remote locations, the Model
3200 MLF can be deployed in discrete measurement (stacking)
or continuous profile data collection modes
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4105 Horn Antenna - 2.0 GHz
The high frequency of this 2.0 GH antenna provides the
highest resolution available in the industry. It allows
the clearest and most precise measurement of pavement wearing
course thickness.
- Allows evaluation of pavement binder course, base and
sub-base layers
- Air-launched antenna allows fast, non-contact measurements
at highway speeds
- Lane closure not necessary to acquire data
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4108 Horn Antenna - 1000 MHz
The Model 4108 air-launched (horn) antenna,
1 GHz, is a pavement thickness and road condition assessment
tool which can be used at highway speeds greater than
45 mph (70 km/hr) with the SIRveyor SIR-20 system.
- Pavement thickness
- Road condition assessment
- Pavement inventory that can be used at highway speeds
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