Submarine Communications-Connecting the World
Undersea fiber optic cables are the integral part of worldwide communications infrastructure carrying more than 99% of international data traffic between contin
8A1. Description. Interior communication (I.C.) systems in a submarine provide the means of maintaining contact, transmitting orders, and relaying indications of the condition of certain machinery or other parts of the ship, to and between various stations in the ship.
In 1979, R.J. Decesari had designed a prototype communication system to provide VHF Communication from a stationary or moving body or Submarine at depth. This designed system allows to be towed as well survive storms and high waves. In this design, Slot antenna was used for Submarine based Communication .
Power is supplied from the 120-volt alternating current bus on the I.C. switchboard through a double pole, single throw, fused switch. Circuit 1MC is provided for the general announcing system and circuit 7MC is provided for the submarine control announcing system. Circuit 7MC is closely tied in with circuit 1MC.
The I.C. systems of a modern fleet type submarine usually consist of about 24 circuits. With few exceptions, they are supplied with power through the I.C. switchboard located in the control room. 8A2. Systems requiring alternating current. The following systems require alternating current for operation: 8A3. Systems requiring direct current.
The circuit is operated on either 115-volt a.c. or d.c., depending upon the type of bell, supplied from a switch on the I.C. switchboard. Some later submarines are equipped with handcranked signal generators and "howlers" at each call station.
A submarine is only as good as its electronics detection system. The SONAR (Sound Navigation and Ranging) provides a system to navigate underwater, communicate or detect object underwater as well as in the surface of the sea. There are two (2) types of SONAR systems.

Undersea fiber optic cables are the integral part of worldwide communications infrastructure carrying more than 99% of international data traffic between contin
The submarine communication systems consists of the following: Very Low Frequency (VLF) – radio waves from 3-30 kHz can penetrate seawater at least 20 meters in
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Power is supplied from the 120-volt alternating current bus on the I.C. switchboard through a double pole, single throw, fused switch. Circuit 1MC is provided for
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