DIDSONTM works well as a component in a harbor surveillance system. A large low-frequency sonar surveys a large volume of water and alerts the operator to an approaching return that exhibits characteristics of a threat. The operator directs a patrol boat to that location and a DIDSON off the side of the boat is used to identify the target as a diver, delivery vehicle, marine animal, or debris. DIDSON can also be used to monitor an underwater location that needs high security, similar to how video surveillance cameras are used on land.

MOUNTS: On the Deploying DIDSON page, see a synopsis of examples of how some DIDSON users mount their sonar.

MOVIES: Click on each image to see the complete movie.
(Depending on your connection method, movies take a few seconds to download and begin to show the movement.)

Breast Stroke	Sea Lion Surprise	Two Divers	Disappearing Diver	Fish Circle	Diver Turning
Flipper Action	Mannequin	Swimming Diver	Paddling Intruders	Free Diver & Fins	Swimmer No Fins
Tip to Toe	Footprints	If you have any different examples please let us know, and we'll arrange data transfer.

STILL IMAGES: Click on each image to see the larger version.

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