Oceanographic transponder MFT-1

underwater acoustic

MFT-1 TRANSPONDER The quick and easy way to relocate an underwater site For more action shots, check out our Photos/Videos page JW Fishers acoustic sonar transponder makes it quick and easy to relocate an underwater site or piece of equipment. The sonar transponder is attached to an underwater location where it sits quietly listening for a coded signal from a acoustic sonar interrogator. When a diver, equipped with a sonar interrogator, points the interrogator in the direction of the transponder, the transponder sends out a coded return signal that is picked up by the acoustic sonar interrogator. The interrogator displays the distance to the transponder (in feet or meters), and a compass displays the heading to the transponder. The diver can follow the signal directly to the target. The acoustic sonar transponder can transmit any one of sixty (60) different frequencies (operator selectable), so many can be deployed in the same general area without interfering with each other. The diver sets the acoustic sonar interrogator to the frequency of the acoustic transponder and is guided directly to it. The MFT-1 multi frequency transponder has a range of over 3,000 feet.