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Transcript of Naval Communications
forces. Naval Telecommunications Secondary Function: Allow administration of the naval establishment. Communication means transmitting a message so the receiver understands it accurately The largest facilities are called Naval Communications Stations (NavComSta) Fleet commanders control all tactical communications of ships and aircraft under their command. Radio is one of the Navy's main forms of communication, but are the least secure form of communication, however most radio frequencies are encrypted. encrypted: the use of code or lock to conceal/ hide a message. Radiotelephone: (voice radio) One of the most basic military devices for communication. The radio waves only go straight, and because most radio talk is just regular talking there is "strict circuit discipline." strict circuit discipline: Prescribed frequencies/channels, language, and procedures. People that use R/T (Radiotelephone) that involves high security, use encryption code such as the phonetic alphabet or morse code
Satellite Communications Communication satellites are the Navy's way of communicating longs distances. Satellite Communication: an application of long distance radio delay, wherein ships, ground stations or air craft can communicate with each other via satellites. Tactical Data Links The Navy and other armed services transmit tactical data among surveillance and weapon control system computers on ships, ground stations and aircraft via transmission of data over radio networks called tactical digital information links (TADILs) International Morse Code Used for Naval Communications transmitted by Flashing light.
Also a system in which letters, numbers, and punctuation marks are represented by various combinations of dots and dashes. In which the dot is 3 times as long as the dots.
Ex. Commander Childers [/= space}
( _._./ ___/ __/ __/ ._/ _./ _../ ./ ._. _._./ ..../ ../ ._../ _../ ./ ._./ ...) Visual Communications
Usually done in short distances, and are often as reliable and convenient as radio, and usually more secure.
Flag hoist, Flashing Signal, and Semaphore are the Navy's main visual means of Communication.
The Nancy Method: It uses Infrared flashing signaling as a form to send the message so that the receiver would have to have special optics to see it. Flaghoist: A rapid and accurate system of sending tactical signals or international code during daylight. Signals are repeated from those receiving the message so that the sender knows they got the message properly.
Flashing Signal: A signal light is used to send light as morse code to a receiver one word at a time and when the receiver gets a word he/she sends one flash (dot) back to let the sender know they're ready for the next word.
Semaphore: The use of hand flags to send very short range, communications between ships. It is faster and more secure. Even at night this can still be done by glowing/ lighted wands.
Sound & Pyrotechnic Signaling Types of sound Communications: Whistles, Bells, Sirens, Underwater Acoustics and Pyrotechnics. Whistles, Sirens, and Bells are used for sending a variety of emergency warning signals. (Used when Foggy or maneuvering signals, air raid, breakdown, and collision warnings.) Pyrotechnics are used for emergency signals. The color of the signal (Flares, Smokes, Roman Candles, etc.) determines the emergency. The Gertrude System :
The Gertrude System is the Final sound communications; Underwater Acoustics, which is the use of sonar equipment in Submarines or Destroyers, and is not very secure. Of the 3, Reliability is the most important; it must never be sacrificed for security or speed, but if a choice must be made the originator must decide which of the two (security or speed) is most important.
THE 3 QUALITIES NAVAL COMMUNICATIONS MUST HAVE: (RELIABLE, SECURE, AND RAPID IN BOTH PEACE AND WAR)