RR NOALL
DE NNN0ASA 805
R 021500Z JAN 98
FM CHNAVMARCORMARS WASHINGTON DC
TO ALNAVMARCORMARS
BT
UNCLAS
SUBJ:  CHNAVMARCORMARS BCST 05-98
1. THIS IS NUMBER FOUR IN A SERIES OF FOUR BROADCASTS PROVIDING
BASIC DIRECTION FOR PROCESSING SCD TRAFFIC.  THIS MESSAGE ADDRESSES
ENTERING HIGH PRECEDENCE TRAFFIC PROCEDURES INTO RDS OR NDN MESSAGE
SWITCHES THAT UTILIZE THE AA4RE MULTIMODE BBS PROGRAM.
2. USE OF THE 'SZ', 'SY' AND 'SX' SEND COMMANDS FOR HIGH PRECEDENCE
TRAFFIC WILL ENSURE THAT THESE MESSAGES ARE FORWARDED AHEAD OF ALL
MESSAGES OF LOWER PRECEDENCE. HIGH PRECEDENCE MESSAGES SHOULD BE
FORMATTED FOR ENTRY INTO THE NDN OR RDN AS A REGULAR MESSAGE WITH
THE FOLLOWING EXCEPTIONS:
   A. THERE ARE FOUR PRECEDENCES RECOGNIZED BY NAVMARCORMARS:
      FLASH  PROSIGN 'Z'
      OPERATIONAL IMMEDIATE  PROSIGN 'O'
      PRIORITY  PROSIGN 'P'
      ROUTINE  PROSIGN 'R'
   B. THE ROUTING LINE IS MADE UP OF THE PROSIGN OF THE HIGHEST
PRECEDENCE OF THE MESSAGE REPEATED TWICE FOLLOWED BY THE ROUTING
INDICATOR. E.G., A PRIORITY MESSAGE ADDRESSED TO NNN0ASC AND
NNN0ASA WOULD HAVE A ROUTING LINE OF: PP NOASA NOASC
AN OPERATIONAL IMMEDIATE MESSAGE ADDRESSED TO NNN0ASC AND NNN0ASC
TWO WOULD HAVE A ROUTING LINE OF: OO NOASC
   C. THE DATE-TIME-GROUP LINE IS MADE UP OF THE PRECEDENCE PROSIGN
AND THE DATE-TIME-GROUP. FOR EXAMPLE, A PRIORITY MESSAGE WOULD BE:
 P 241234Z JAN 97
   D. THE REST OF THE MESSAGE IS FORMATTED LIKE ANY OTHER MESSAGE
ENTERED INTO THE SYSTEM.
3. THERE IS ALSO THE POSSIBILITY THAT THE MESSAGE COULD BE OF DUAL
PRECEDENCE. THE DUAL PRECEDENCE INDICATES THAT THE MESSAGE IS TO BE
DELIVERED AT THE HIGHER PRECEDENCE TO THE ACTION ADDEES AND AT THE
LOWER PRECEDENCE TO THE INFO ADDEES. FOR EXAMPLE, IF I SENT A
MESSAGE TO NNN0ASC, INFO NNN0ASA, AND WANTED IT TO BE DELIVERED 
AS A PRIORITY MESSAGE TO NNN0ASC BUT ONLY AS A ROUTINE MESSAGE TO 
NNN0ASA, THE MESSAGE WOULD BE FORMATTED AS FOLLOWS:
   A. THE ROUTING LINE IS MADE UP OF THE PROSIGN OF THE HIGHER
PRECEDENCE OF THE MESSAGE REPEATED TWICE AND THE ROUTING INDICATORS
AS EXPLAINED ABOVE. IN THIS CASE: PP NOASA NOASC 
   B. THE DTG LINE CONTAINS THE PROSIGN FOR THE HIGHER PRECEDENCE
FOLLOWED BY THE PROSIGN FOR THE LOWER PRECEDENCE SEPARATED BY A
SPACE. IN THIS CASE: PR 051234Z SEP 97
4. THE HIGHEST PRECEDENCE OF THE MESSAGE WILL DETERMINE WHICH SEND
COMMAND YOU WILL USE WHEN ENTERING THE MESSAGE INTO A MESSAGE
SWITCH (BBS/MBO). THEY ARE:   
      SZ  FOR FLASH TRAFFIC
      SY  FOR OPERATIONAL IMMEDIATE TRAFFIC
      SX  FOR PRIORITY TRAFFIC
      ST  FOR ROUTINE TRAFFIC
   A. FOR A PRIORITY MESSAGE TO NNN0ASC SC, USE THE SEND COMMAND:
SX NN0ASC AT NOASC
   B. FOR AN OPERATIONAL IMMEDIATE MESSAGE TO MULTIPLE ADDEES NOT IN
THE SAME AREA (E.G. NNN0ASA MD/DC AND NNN0ASC TWO GA) USE THE SEND
COMMAND: SY MULTI
   C. THE REMAINING PROCEDURES ARE THE SAME AS FOR OTHER MESSAGES.
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