communication instructions radio telegraph procedure

UNCLASSIFIED ACP124 (D)
3. Line 4: This line may contain the prosign F, G and T: operating signals, call signs, address
groups, plain language address designators, AIGs, routing indicators (where authorized by paragraph
901b).
4. Line 5: This line will contain the appropriate precedence prosign (in the case of dual precedence,
both prosigns will be shown separated by a separative sign); the originator's date time group zone suffix
and month indicated by first 3 letters, and, if required by National Instructions, the year indicated by the
last 2 digits message instructions in the form of operating signals, and the prosign as necessary.
IX
5. Line 6: This is identified by the appearance of the prosign FM and contains the designator of the
originator which may be a call sign, address group, plain language address designator or routing indicator
(where authorized by paragraph 90lb).
6. Line 7: This line is identified by the prosign TO and contains the designators of the ACTION
addressees in the form of call signs, address groups, plain language address designators, AIGs, routing
indicators (where authorized by paragraph 90lb).
7. Line 8: This line is identified by the prosign INFO and contains the designators of the INFO
addressees in the form of call signs, address groups, plain language address designators, and routing
indicators (where authorized by paragraph 90lb).
8. Line 9: This line is identified by the prosign XMT and contains the designators of addressees
exempted from the collective designator when such designator is used in format line 7.
9. Line 10: This line is identified by the appearance of the group count prosign and contains
accounting symbols (as required) which precede the group count prosign.
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10. Line 11: This line contains the BT separating text from the heading.
11. Line 12: This is the text of the message and may contain internal instructions as well as the basic
idea of the originator. It will be preceded by the abbreviation UNCLAS or appropriate classification and
by SVC, if required.
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12. Line 13: This line contains the prosign BT separating the text from the message ending.
13. Line 14: This line, when used, will contain the time group expressed in hours and minutes, plus
the zone suffix. (Used only in abbreviated plaindress). NOTE Expression of year in record
communications – until 31 December 2005, when record communications containa year in the header, it
will be assumed that where the year is expressed in two digits of 06 – 99 the digits 19 precede, i.e., 1906
– 1999, and where the two digits 00 – 05 appear it will be assumed that digits 20 precede, i.e. 2000 –
2005. Effective January 2006, record communications will contain a four digit year in the header, i.e.,
date time group will be expressed at 011500z JAN 2006. Within the body of a message, the established
standards for character based messaging will be followed, e.g., The United States Message Text Formats
(USMTFS), Allied Data Publication – 3 (ADATP – 3), Australian Defence Formatted Message Standard
(ADFORMS). These standards have adopted a four digit year for date data transmission.
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14. Line 15: This line is identified by the appearance of the prosigns AS, B, C, IMI,
IX _____ , operating signals; station designators as required.
5 sec
UNCLASSIFIED 1-11
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