Geoscanners GEKKO-120
Airborne Antennas / Gekko-series
The antennas from the Gekko series are compact, lightweight, ultra-wide band ground penetrating antennas from the VHF radio frequency band.
They have an improved signal to noise ratio and more precise resolution compared to similar devices from other manufacturers. Gekko antennas are therefore excellent for applications where deep penetration, good resolution and maneuverable GPR systems are desirable.
Gekko-120 is fully compatible with the rest of the Geoscanners equipment. It is easily mounted on the GST-806 cart, designed specifically to be used on cars or other vehicles, or with the SVC-820 cart (standard 4 wheel cart).
Just as with the rest of the Geoscanners antennas, Gekko-120 is designed with the end user in mind. It can be used in both monostatic mode or in bistatic mode. Depending on which mode is desirable by the user, the antenna comes equipped with top of the line Geoscanners plug-in electronics; TR-501 for monostatic mode or a combination of RX-501 and VHT-501 for bistatic mode.
By including the transceivers in the antenna, we made sure that the end user receives a highly integrated device with all the matching already made to give the best possible results.
Area of Application
- Deep geological surveys
- Glacier surveys and monitoring
- Water level mapping
- Alluvial deposits and layer mapping
- Dam structural integrity surveys, embankment control
Overview
The antennas from the Gekko series are compact, lightweight, ultra-wide band ground penetrating antennas from the VHF radio frequency band. They have an improved signal to noise ratio and more precise resolution compared to similar devices from other manufacturers. Gekko antennas are therefore excellent for applications where deep penetration, good resolution and maneuverable GPR systems are desirable.
All Gekko antennas can be used upon their arrival, and are equipped with our top of the line TR-501 transceiver. There are different plug-in combinations that can be chosen if you wish to use the Gekko antennas in bistatic mode. One possible combination is to use a RX-501 receiver with a VHT-501 transmitter. It is also possible to combine a TR-501 transceiver with a VHT-501 transmitter, allowing you to decide on site if the survey is going to be done in monostatic or bistatic mode.
A great deal of time was invested in the design of the outer shell of the Gekko antennas to provide a stable construction and a degree of ruggedness that has not been achieved before. The Gekko antennas are easily mounted on the GST-806 car mount trailer, on the standard SVC-820 4-wheel cart, or on the ASH-822 hand carrier.
Gekko Antenna Range
| Antenna | Name | Center Frequency (at 10dB) |
Penetration Depth* | Resolution/target size** | Range | Dimensions(mm) | Weight |
|---|---|---|---|---|---|---|---|
 |
Gekko-60 | 64.75MHz | 50m | >0.85m | 256-radar max | 2045x120x222 | 5kg |
| Gekko-60 Bistatic |
64.75MHz | 60m | >0.85m | 256-radar max | 2 Gekko-60 antennas | 10kg | |
 |
Gekko-80 | 80MHz | 30m | >0.65m | 256-radar max | 1375x120x222 | 3.3kg |
| Gekko-80 Bistatic |
80MHz | 40m | >0.65m | 256-radar max | 2 Gekko-80 antennas | 6.6kg | |
 |
Gekko-120 | 120MHz | 20m | >40cm | 120-radar max | 800x120x222 | 2.5kg |
| Gekko-120 Bistatic |
120MHz | 20m | >40cm | 120-radar max | 2 Gekko-120 antennas | 5kg |
*Maximum depth of penetration estimated for RDP=6,σ<0.1mS
**In average low conductive soils
Features
Technical specifications
