Film: 3630

Shipping | 1950 | Sound | B/W


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Kelvin Hughes Echo Fishing filmed in Norway 1950's

The sea and fishing boats off the coast.
The ultra-sonic echo sounder is used for small fishing boats to find fish. Details of how it works using a transmitter attached to the ship's bottom from which a cable runs to the recorder. Components, amplifer, power unit, recorder with paper printout.
Echo signals show the location of different types of fish sometimes up to 90 fathoms deep.
Fishing boats with fishermen waving. Throwing out a handline. Fish being brought on board from another boat and being boxed.

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