COMMUNICATIONS Flashcards
What is CIC’s primary means of external communications?
Radiotelephone (R/T) {because of its convenience, speed, and simplicity}
Why are sound-powered telephones used on naval vessels?
Because they provide a simple, rugged and reliable communications system throughout the ship
What R/T message indicates an important safety of navigation or meteorological warning is about to be transmitted?
SECURITE- Safety signal (pronounced SECURITAY)
What is the NANCY system of visual communications?
one that uses infrared light that is visible with the aid of equipment designed especially for that purpose
What is the design of the FORM pennant?
To signal an operational purpose formation
What is the purpose of the pneumatic tubes communications system?
to relay written messages between communication stations within the ship
What are the two link-11 frequency bands
the HF band (2-30 megahertz) and the UHF band (225-400 megahertz)
What link -11 frequency band is used to establish a net when the range between units in the net is from 25- 300 nautical miles
High frequency band (2-30 megahertz)
What link-11 frequency band is used to establish a net when the range between units in the net is less than 25 nautical miles
Ultra High Frequency band (225-400 megahertz)
What term is used for the exchange of link-11 data
ping-pong
what is link-16 (S-TADIL J) ‘TIMBER’
A TDMA-based secure, jam-resistant high speed digital data link
What is the radio frequency band for link-16
960-1215 MHz
What is the design of Joint Range Extension (JRE)
Provides a means of exchanging J-series link 16 messages over media other than MIDS/JTIDS, primarily to achieve Beyond Line of Sight (BLOS) communication
What is OSIS
a system that combines all existing navy operational intelligence nodes to support tactical operations
What is DAMA
An acronym for DEMAND- ASSIGNED- MULTIPLE- ACCESS which is a 39 channel UHF COMSAT
What is CLASSIC OUTBOARD
the shipboard HF/DF system
What is SIGSEC
Signal security which involves efforts taken to protect signal transmission
What is COMSEC
Communication security which involves efforts taken to protect communication from any type of exploitation
What is the term for intentional insertion of electromagnetic energy into transmission paths
Imitative communication deception- ICD
What is the design of the emergency position indicating radio beacon (EPIRB)
its a compact, battery-powered emergency signaling device that emits alert and locate signals continuously for up to 48 hours
What is indicted by the term DESIG
That the letters or numerals which follow are to be interpreted literally
What must precede groups of international code of signals used over a naval voice R/T circuit?
INTERCO
What radio circuit allows a net control station to monitor the use and flow of information
a directed net
what is the design of a command net
that the radio circuit is specifically designated for communications between warfare commanders
