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2. AN/SQS-26 - Wikipedia

   en.wikipedia.org/wiki/AN/SQS-26

   AN/SQS-26 was a United States Navy surface ship, bow mounted, low frequency, active/passive sonar developed by the Naval Underwater Sound Laboratory [1] and built by General Electric and the EDO Corporation. At one point, it was installed on 87 [2] US Navy warships from the 1960s to the 1990s and may still be in use on ships transferred to ...

3. Side-scan sonar - Wikipedia

   en.wikipedia.org/wiki/Side-scan_sonar

   Side-scan uses a sonar device that emits conical or fan-shaped pulses down toward the seafloor across a wide angle perpendicular to the path of the sensor through the water, which may be towed from a surface vessel or submarine (called a “towfish”), or mounted on the ship's hull.

4. Does live sonar technology help casual anglers catch more ...

   www.aol.com/news/does-live-sonar-technology-help...

   Kansas study on whether relatively new live imaging sonar technology enables casual anglers to catch more crappie concluded it does, but not by much.

5. Sonar - Wikipedia

   en.wikipedia.org/wiki/Sonar

   Sonar (sound navigation and ranging or sonic navigation and ranging) [2] is a technique that uses sound propagation (usually underwater, as in submarine navigation ...

6. Crappie limits lowered at Grenada and other popular MS lakes ...

   www.aol.com/crappie-limits-lowered-grenada-other...

   The two live near Ross Barnett Reservoir, so the two can conveniently go fishing and with the aid of live sonar, catch a few for a meal whenever they want. "It is a game-changer," Ratcliff said ...

7. Echo sounding - Wikipedia

   en.wikipedia.org/wiki/Echo_sounding

   Echo sounding or depth sounding is the use of sonar for ranging, normally to determine the depth of water . It involves transmitting acoustic waves into water and recording the time interval between emission and return of a pulse; the resulting time of flight , along with knowledge of the speed of sound in water, allows determining the distance ...