BMR MAN ch 4: communications Flashcards
what power source do sound power phones use?
none
which parts of the sound powered phones function in the same manner and thus can be used interchangeably?
mouthpiece
earpiece
what are the seven parts of a headset sound powered phone?
headband earpiece Mouthpiece (transmitter) Push-button (to talk) Yoke Breastplate junction box
what are the three categories of sound powered telephones circuits aboard ships?
primary
auxiliary
supplementary
which category of sound powered telephones includes all circuits necessary for controlling armament, engineering, damage control, maneuvering, and surveillance functions during battle?
the primary system
which designators are assigned to the primary system of sound powered telephones?
JA-JZ
what are the five functions that the primary system of the sound power telephones control?
armament engineering damage control maneuvering surveillance
which category of sound powered telephones includes duplicates many of the primary circuits for the purpose of maintaining vital comm in the event of damage to the primary system?
auxiliary system
circuit designators for the auxiliary system are preceded by what letter?
X
which category of sound powered telephones includes several short, direct circuits such as from the bridge to the quarterdeck?
supplementary system
which circuits are designated for the supplementary system?
X1J through X61J
what is the ships primary battle circuit?
21JS4
what are the three rules for circuit discipline?
- transmit only official messages
- keep the button in the OFF position except when actually transmitting.
- use only standard words and phrases
what is the 4MC circuit used for?
DC
what is the 1MC circuit used for?
General