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CNN The Lead With Jake Tapper April 8, 2014 04:20:00

Before any beacon is shipped from here its sound output is measured in one of these huge 50,000 gallon tanks. it s lowered into the tank through the floor above. surround by hydrophones, ultrasonic readings are recorded on this computer. this pinger is twa flight 800 which went off the coast of new york back in 1996. this company made the pinger. after it was recover they got it back. this one was found in shallow water but they are designed to function in water as deep as 20,000 feet. what about the frequency? crews at sea picked up a slightly lower frequency than the pinger s standard frequency of 37.5 kilohertz. water temperature can shift the frequency. it s so distinct, right? there s nothing else that would sound like this with this frequency. 37.5 kilohertz was selected because it is unique from the background noise in the ocean. ....

Sound Output , Gallon Tanks , Shallow Water , New York , Twa Flight 800 , Ultrasonic Readings , Crews At Sea , 37 5 , The Ocean , Background Noise , Water Temperature ,

CNN Anderson Cooper 360 April 8, 2014 00:20:00

Can travel 2 1/2 nautical miles. cliffs and vegetation can get in the way limiting that distance. before any beacon is shipped from here its sound output is measured in one of these huge 50,000 gallon tanks. it s lowered into the tank through the floor above. surround by hydrophones, ultrasonic readings are recorded on this computer. this pinger is twa flight 800 which went off the coast of new york back in 1996. this company made the pinger. after it was recover they got it back. this one was found in shallow water but they are designed to function in water as deep as 20,000 feet. what about the frequency? crews at sea picked up a slightly lower frequency than the pinger s standard frequency of 37.5 kilohertz. water temperature can shift the frequency. it s so distinct, right? there s nothing else that would ....

Sound Output , 2 1 , Twa Flight 800 , Ultrasonic Readings , Gallon Tanks , Shallow Water , New York , Water Temperature , Crews At Sea , 37 5 ,

CNN CNN Newsroom April 8, 2014 19:26:00

So it s instant. as soon as it hits the water, it starts pinging. it doesn t take a lot of water to activate. it s designed that way. so if this were in an airplane, and hit the ocean, this would start immediately, this pinging sound? if it was not damaged in the incident. reporter: in perfect conditions the pinger s pulse can travel as far as 2 1/2 nautical miles. ocean caverns and cliffs, even vegetation can get in the way limiting that distance, though. before any beacon is shipped from here, its sound output is measured in one of these huge 50,000-gallon tanks. it s lowered into the tank through the floor above. surrounded by hydrophones, ultrasonic readings are recorded on this computer. this pinger is from twa flight 800. it went down off the coast of new york back in 1996. this company made this pinger, but after it was recovered, they got it back. now, this one was found in ....

It Doesn T , Ocean Caverns , 2 1 , Sound Output , New York , Twa Flight 800 , Ultrasonic Readings ,