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Gardline Surveys

Marine site investigation contractor Gardline Surveys has launched a new CPT system that uses acoustic telemetry rather than a conventional umbilical cord to transfer data from the seabed. The GteC-1 is claimed to be the first commercial system to use acoustic telemetry. The battery powered rig has an automated control and data storage system and can sample in water depths of up to 2,000m, used with 2, 5 and 10cm 2 piezocones. Built using the AP van der Berg Rosen continuous push wheel drive system, it has a nominal penetration of 5m which can be increased to suit conditions. The firm says the lack of cabling means it is more portable and versatile than standard systems and a lightweight option means it can be deployed from a wide range of vessels.

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