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Sound ranging has a number of advantages over other methods: Sound ranging is a passive method, which means that there are no emissions traceable back to the sound ranging equipment. This is different from radar, which emits energy that can be traced back to the transmitter. Sound ranging equipment tends to be small.
Sonar (sound navigation and ranging or sonic navigation and ranging) [2] is a technique that uses sound propagation (usually underwater, as in submarine navigation) to navigate, measure distances , communicate with or detect objects on or under the surface of the water, such as other vessels.
By September 1916, Tucker's new microphones had been supplied to all sound-ranging sections. [6] In 1917, sound-ranging was further developed so that allowances could be made for poor weather conditions, as sudden gusts of wind could cool the wire: the most effective method found was to wrap the devices in several layers of camouflage netting. [8]
This is a list of United States Army fire control, and sighting material by supply catalog designation, or Standard Nomenclature List (SNL) group "F".The United States Army Ordnance Corps Supply Catalog used an alpha-numeric nomenclature system from about the mid-1920s to about 1958.
It currently serves in the Surveillance and Target Acquisition role and is equipped with counter-battery radars and acoustic sound ranging equipment; it also provides Special Observation Post teams. British M107 Special Observer Badge, worn by Soldiers who have passed STA Patrol Training
Swedish soldiers operating an acoustic locator in 1940. Acoustic location is a method of determining the position of an object or sound source by using sound waves. Location can take place in gases (such as the atmosphere), liquids (such as water), and in solids (such as in the earth).
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