He was tracing a fault line with the portable sonar gear.

We'll pick up its impulse from above with sonar gear on the ocean floor.

During the voyage, she encountered heavy seas which damaged her sonar gear.

The vessel's sonar gear can cut a swath two miles wide, and she carries a submersible.

The Ram picks up speed while red-rimmed eyes watch the ranging and sonar gear.

We're still working on that sonar gear, but that's almost finished.

Her sonar gear searched the black water for the telltale noise of a Russian submarine.

Mancuso had pointed out that it would not be a major feat, since the sonar gear in this room alone cost over twenty million dollars.

Why would anyone want an officer to stand watch on sonar gear?

Though not a qualified watch officer, Jones could operate and maintain sonar gear as well as anyone he'd known.