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JW Fishers introduces new low-cost transponder for underwater work

A new line of low-cost acoustic transponders and an interrogator from JW Fishers could help make underwater work for hydroelectric project owners, operators and developers easier, the Massachusetts-based manufacturer said.

Fishers' new transponder, called the MFT-1, is capable of transmitting to nine different frequencies between 24 kHz and 33 kHz. This allows multiple units to be deployed in the same area with each transmitting a unique signal. Fishers said its standard MFT-1 will operate from four to eight months, depending on the type of batteries installed, though upgrades are available to extend that as much as several years.

Meanwhile, the company's new interrogatory -- the DHI-1 -- will detect transponders with frequencies ranging from 24-33 kHz. The two devices will communicate with each other at distances up to 3,000 feet, and the DHI-1 can be carried by a diver or deployed from a boat.

For more information about Fishers' MFT-1 or DHI-1 products, visit the company's website here.

For more products, visit the HydroWorld.com Buyer's Guide.


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http://www.hydroworld.com/content/hydro/en/articles/2013/04/jw-fishers-introduces-new-low-cost-transponder-for-underwater-wo.html