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Comms > Comms 11 - 12 - Message Formats > Flashcards

Comms 11 - 12 - Message Formats Flashcards

1
Q

Review Questions

What effect does the ionosphere have on radio waves?

A

Refracts them back to the surface.

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2
Q

Review Questions

What is the rule of thumb for HF frequencies?

A

High sun, high frequency

Low sun, low frequency

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3
Q

Review Questions

Define the Maximum Useable Frequency

A

The highest frequency that will give a skip distance equal to the distance from the transmitter to the intended receiving point.

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4
Q

What is the purpose of message formats?

A

Ensures standardization amongst all communicators

Ensures that all necessary information is contained within the message

Allows for quick and easy drafting of messages

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5
Q

What are Prowords?

A

Procedure words are easily pronounced and recognized words or phrases used to convey a specific predetermined meaning.

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6
Q

What are Prosigns?

A

Alphanumeric text used to represent a proword on a teletype circuit.

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7
Q

What do Prowords and Prosigns provide?

A

brevity, clarity and efficiency

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8
Q

What does SAY AGAIN mean? What is its prosign?

A

Meaning: Repeat all, or the following part of your last transmission

Prosign: IMI

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9
Q

What are the different precedence levels?

A

ROUTINE
PRIORITY
IMMEDIATE
FLASH

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10
Q

Who is precedence assigned by?

A

Originator of the message. not the actual person sending it.

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11
Q

Describe precedence Routine and its prosign.

A

Upon receipt, comm personnel will deliver by start of next business day

Proword R

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12
Q

Describe precedence Priority and its prosign.

A

Used when the circuit is clear or to break in on a message of lower precedence. Upon receipt, comm personnel will deliver within six hours

Prosign P

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13
Q

Describe precedence Immediate and its prosign.

A

Breaks in on comms of lower precedence. Upon receipt, comm personnel will deliver within one hour.

Any traffic that comes from an aircraft is considered immediate unless otherwise specified

Prosign O

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14
Q

Describe precedence Flash and its prosign.

A

Breaks in on all traffic and is normally reserved for a message that contains info vital to national security

Upon receipt of this message, comm personnel will deliver within 10 minutes

Prosign Z

Not normally used in peacetime

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15
Q

Fill in the prosign and time allotted for comm personnel of the following:

ROUTINE
PRIORITY
IMMEDIATE
FLASH

A

ROUTINE: R / Next business day
PRIORITY: P / 6 hours
IMMEDIATE: O / 1 hour
FLASH: Z / within 10 minutes

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16
Q

Which types of precedence are not used by aircraft for action addressee?

A

ROUTINE & PRIORITY

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17
Q

Regarding Standard Formats, all NATO messages consist of what three parts?

A

HEADING
TEXT
ENDING

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18
Q

What is contained in Heading - Line 1?

A

Used for Radio teletype communication only

Either UU or HH

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19
Q

What is contained in Heading - Line 2 & 3?

A

Line 2 - The station being called

Line 3 - Prowords THIS IS followed by aircraft callsign

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20
Q

What is contained in Heading - Line 4?

A

Contains transmission instructions. These can be:

READBACK
RELAY
DO NOT ANSWER

21
Q

What is indicated by Heading - Line 4 Readback?

A

Message must be readback by the receiving operator

Prosign G

22
Q

What is indicated by Heading - Line 4 Relay?

A

The ground station will have to pass the message onto the addressee.
Used almost always for aircraft messages as most aircraft traffic will be relayed.

Prosign T

23
Q

What is indicated by Heading - Line 4 Do Not Answer?

A

You do not want the station called to answer, such as on exercise when stations are radio silent.
For this reason, messages will be transmitted twice

Prosign F

24
Q

What is contained in Heading - Line 5?

A

Contains the precedence and the date time group (DTG) of the message

Prosigns are:

ROUTINE - R
PRIORITY - P
IMMEDIATE - O
FLASH - Z

25
How is the DTG presented in Line 5?
Two digits for the date and four for the time in Zulu, which is preceded by the word TIME
26
What is contained in Heading - Line 6?
Indicated the originator of the message Presented as DE and originators callsign
27
What is contained in Heading - Line 7?
Indicated the action addressee(s), someone who will take some action with the message Proword TO followed by the c/s of the station Ex TO 402 Ops
28
What is contained in Heading - Line 8?
Indicates the info addressee, someone you wish to know the contents of the message but not take any action Proword INFO followed by the c/s of the station Ex INFO 17 WING OPS
29
What is contained in Heading - Line 9?
Indicates exempt addressee, used for those stations in a collective c/s which you do not want to have the message Proword EXEMPT followed by the c/s
30
What is contained in Heading - Line 10?
Indicates the group count In coded messages, the text is broken into groups. This line indicates the number of groups in the text.
31
What is contained in Heading - Line 11 & 13
Used to separate or break the text from the heading and ending. Proword BREAK is used, can be shortened to = or BT in log
32
What is contained in Heading - Line 12?
Is the text of the message Can be as many lines as necessary, but is only indicated as one in the standard format.
33
What is contained in Ending - Line 14?
Indicates the time group This is only used when the authenticating and uses the prowords AUTHENTICATE TIME followed by the time Not used on this course
34
What is contained in Ending - Line 15?
Contains the final transmission instructions ``` Can be one of the following: WAIT CORRECTION AUTHENTICATION IS MORE TO FOLLOW ```
35
What is meant by the following in Ending - Line 15? WAIT CORRECTION AUTHENTICATION IS MORE TO FOLLOW
WAIT - Indicates you will be stopping tx for a short time CORRECTION - At this point if you notice errors in your message you can correct them AUTHENTICATION IS - A letter group that corresponds to the time, not used on this course MORE TO FOLLOW - If you have more traffic after the message
36
What is contained in the Ending - Line 16?
Ending sign OVER or OUT Usually OVER, but if DO NOT ANSWER is used, then it would be OUT
37
The following is the Standard Format Recap for Heading, fill in the blanks ``` Heading LINE 1 LINE 2 LINE 3 LINE 4 LINE 5 LINE 6 LINE 7 LINE 8 LINE 9 LINE 10 ```
``` LINE 1 - Classification LINE 2 - Station LINE 3 - Originator LINE 4 - Transmission Instructions LINE 5 - Precedence / Time Group LINE 6 - From LINE 7 - To LINE 8 - Info LINE 9 - Exempt Addressee LINE 10 - Groups ```
38
The following is the Standard Format Recap for Text, fill in the blanks LINE 11 LINE 12 LINE 13
LINE 11 - Break LINE 12 - Message Text LINE 13 - Break
39
The following is the Standard Format Recap for Ending, fill in the blanks LINE 14 LINE 15 LINE 16
LINE 14 - Authentication Time LINE 15 - Final Instructions LINE 16 - Over/ Out
40
What are the different types of messages?
PLAINDRESS ABBREVIATED PLAINDRESS INFORMAL
41
Describe the PLAINDRESS Message
Another name for standard format, contains all elements in the standard format Must include the Precedence and DTG
42
Describe the Abbreviated Plaindress Message
Used during times of operational requirements for speed of of handling message traffic You can leave out the following Precedence DTG Group Count All other aspects are the same as the standard format
43
Describe the Informal Message
Operator to operator traffic, usually more conversational in nature. Topics include Weather Aerodrome information Scores in sports event etc...
44
Describe Message Routing
The ground station receives your message Message is transmitted via landlines (usually computer) The addressee receives a hard copy of the message and actions it
45
Review Questions What are the basic parts of a message?
Heading Text Ending
46
Review Questions What are the four precedence levels, from most to least important?
FLASH IMMEDIATE PRIORITY ROUTINE
47
Review Questions What must a PLAINDRESS message include?
Precedence | DTG
48
Review Questions For an ABBREVIATED PLAINDRESS, what information can be left out? Remains the same?
You can leave out any of the following Precedence DTG Group count All other aspects are the same

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