ACP 121 (H) Communication Instructions General Flashcards
What is comprised of five member nations, Australia, Canada, New Zealand, United Kingdom and United States and is the Sponsoring Authority for all Allied Communications Publications (ACPs)?
Combined Communications-Electronics Board (CCEB)
What provide communications instructions and procedures, which are essential to the conduct of military operations?
ACPs
ACPs are prepared in accordance with the format contained in what?
ACP 198
The primary purpose of military communications and information systems (CIS) is to serve the what?
Military commander
During and after what radio became widespread, providing strategic and tactical worldwide communications from ships, aircraft, headquarters and vehicles?
World War I
What have gradually replaced HF strategic links as the primary means of Communication by utilizing both ultra high frequency (UHF) and Super High Frequency (SHF) line of sight links?
Satellites
Military communications systems are divided into two general classes: What are they?
Tactical and Strategic
What communication systems are usually self-contained within a command structure and are designed to allow the commander to conduct his mission at the operational level, e.g. Communications for control of a weapons system, early warning systems, aircraft movement control or land component command nets?
Tactical
What communications systems are generally more global in nature and are operated on either a common user or special purpose basis?
Strategic
In modern communications terminology, what is generally associated with fixed CIS infrastructure, which can be extended into the battlespace with high capacity bearers designed to interface with in-theatre systems?
Telecommunications
Information concerning the security of communications is contained in what publication?
ACP 122
What is the transmission and reception of messages using the international Morse code?
Wireless Telegraphy
What is the transmission of information, such as, pictures, maps, messages and other similar material?
Facsimile
What means of visual communications is the transmission of information by light, which is outside of the visible spectrum?
Infrared
What means of visual communications involves the use of flares, rockets and smoke for pre-arranged signals or for recognition purposes?
Pyrotechnics
What means of visual communications involves the use of specially shaped and or colored cloth or other material displayed in accordance with the pre-arranged code to convey messages?
Panels
What is the method of forwarding messages by an established Postal Service when the speed of delivery is not an issue and security considerations allow?
What method should always be used to deliver bulky material or any messages that could be delivered within the time required for encryption, transmission, decryption and delivery of a message?
Messenger or courier
Communications requiring rapid delivery are normally prepared for transmission as brief and concise what?
Messages
What is the command, formation, unit or headquarters on whose authority is a message sent?
Originator
Who is the person who actually composes the message for release by the releasing officer?
Drafter
There are essentially how many types of military messages exchanged today?
Two
A message address to one organization was formally referred to as a single address message if it was addressed to a single signal message address in what format line?
7
Messages addressed to a collective address include what that have a wide standard distribution and are controlled through the use of sequential serial numbers?
General Messages
Abbreviations and what else are used in messages in order to shorten the text, thereby saving transmission time?
Short titles
Punctuation is not authorized to be in the SMA with the exception of the hyphen and the what?
Full stop (.)
Date and time together are expressed as how many figures followed by the zone letter on a message?
Six
Messages containing cryptographic information, the knowledge of which needs to be restricted to individuals authorized to receive it, and are to be marked what?
Cryptosecurity
The NATO military messaging system cannot/will not send or receive messages bearing what caveat?
Atomal
Messages intended for training communications personnel are what messages?
Drill
What shows the relative order in which the message is to be processed?
Precedence
The DTG is expressed as how many digits followed by a zone suffix?
Six
What is an element of a military message that is used by most CCEB and NATO member nations for delivery purposes?
SIC
It is the responsibility of what to ensure that the proper classification is indicated on the message before it is forwarded for transmission?
Releasing officer
In tactical operations, simulated or actual, the speed of delivery is so essential that time cannot be spared for encryption and the transmitted information cannot be acted upon by the enemy in time to influence current operations, messages of any classification except what may be transmitted in the clear over any circuit?
Top secret
The assignment of precedence to a message is the responsibility of what?
Releasing officer
The releasing office should be aware that all but what precedence messages are delivered to the addressee immediately upon receipt by the communications center, regardless of the hour?
Routine
What message presence is handled as fast as humanly possible with a time objective of less than 10 minutes?
Flash
What is the time objective for Messages assigned a precedent of immediate?
30-60 minutes
What is the time objective for messages assigned a precedence of Priority?
1-6 hours
Time objectives for formal messages originated or in transit within the X.400 domain are contained within the current edition of what publication?
ACP 123
What is the presence to be used for all types of messages which justify transmission by rapid means but are not sufficient urgency and importance to require a higher precedence?
Routine
What is a communication indicating that the message to which it refers has been received and the purpose is understood by the addressee?
Acknowledgment
What operating signals are for use by communications personal to obtain confirmation of message delivery only, not acknowledgement?
ZFF and ZDF
The operating signal ZFF shall not be used on what messages?
General
Cancellation of a message which has been receipted for may be accomplished only by the what?
Originating authority
There are how many methods available for requesting the retransmission of the whole or part of a message, which has been received?
Three
The instructions to reduce traffic will be made by the promulgation of what word?
Minimize
GMT is indicated by what suffix?
Z
How many equidistant divisions of the earth surface are based on coordinates of longitude east and or west?
24
What is any emission, radiation or induction which endangers the functioning of a radio navigation service or of other safety services or seriously degrades, obstructs or repeatedly interrupts a radio communication service operating in accordance with international regulations?
Harmful interference
Any combination of characters or pronounceable words designated for use in message headings to identify a command, authority, unit or communications facility, or to assist in the transmission and delivery of messages, maybe classified as a station or what else?
Address designator
Station and address designators encompass four categories, namely: call signs, address groups, routing indicators and what else?
Plain Language
Routing indicators consist of how many types?
Two
Call signs and what else are used in lieu of plain language for brevity purposes?
Address groups
The use of call signs in message texts should be avoided, except in procedure and what other messages?
Service
Indefinite call signs are used by warships and merchant vessels when transmitting what messages or other messages requiring security of origination to shore radio stations?
Codress
What is a form of military address designator representing a predetermined list of specific and frequently reoccurring combinations of action and/or information addresses?
AIG
What comprised of four letters and identical in appearance with address groups, are provided for use in the headings of messages to give special instructions?
Special operating groups
What are primarily station designators and have the fundamental purpose of indicating the communications point of destination to enable correct routing through message relay systems, either manual tape relay, automatic tape relay or computer based systems?
Routing indicators
What designators are not authorized for use in lieu of Call signs, address groups or routing indicators in establishing and maintaining communications?
Plain language
In legacy systems, the use of plain language address designators in the heading of what message is prohibited?
Codress
AIG’s are divided into how many major categories?
Two
The responsible authority is responsible for forwarding modifications to AIG’s as they occur and reviewing the AIG at least how often for continued requirement and necessary modification?
Quarterly
Routing indicators will consist of not less than four and not more than how many letters, including suffixes?
Seven
A relay station is designated as what type of relay station when it has relay responsibilities, but does not provide an alternate route?
Minor
What letter always appears as the first letter and distinguishes tactical/theater routing indicators from call signs, address groups and strategic/worldwide routing indicators?
U
What are used to change call signs/address groups without re- ordering the allocated call sign/addressgroup population?
Systematic rotations
Block allocations of call signs used in tactical communications are normally classified as what to restrict access to this information?
Confidential
The standard allied method of establishing and conducting combined communications is the call sign of the station called, followed by the Call sign of the calling station and separated by the pro sign “DE” or what pro word?
This is
What procedure is a method of establishing and conducting radio telephone communications in which subordinate station call signs are used exclusively?
Single call sign calling
What is a procedure whereby the entire address of a message is contained with in the encrypted text?
Codress
Codress is not supported by what systems as these system require the complete PLAD components to make delivery?
ACP 123
What series should be consulted for complete details of maritime enemy contact reporting?
ACP 176
The procedure to be used for the transmission of enemy contract reports by radiotelephony are given in what series?
ACP 125
What is any person qualified and empowered to make decisions or give orders on behalf of the commander?
Authority
What is a critical element of any message which shows the security protection that should be given to the signal by originators and addressees?
Classification
What is any thought or idea expressed in plain language that is prepared in a concise form and is suitable for transmission by any means of communication, subject to the classification of the text?
Message
What are the measures taken to ensure that information is not made available to or intercepted by unauthorized personnel?
Security
What is the abbreviated form of proper names which together make up a title, e.g. of a command/formation, document or device?
Short title
What is the portion or “body” of a message containing the thought or ideas of the originator that are to be conveyed to others?
Text
Who is the person who authorizes the transmission for, and in the name of, the originator?
Releasing Officer
