[MilCom] 11175.0 - DOOM 12, DOOM 11, RED RIVER and NEREP message traffic

[Jeff Haverlah]

1912z  20 Nov 24

     11175.0 USB was active at 1824z with DOOM 12 (initially ID'ing as DOOM
72; good/fair levels) popping up on frequency and saying "For RED RIVER;
DOOM 72 (restated as DOOM 12); standby; message traffic" (twice); and, into
a fast spoken....

3SSS PICOAQAHZCWXXTMHFZHKZTDNCLNWOK (twice); "end of message"

Then, a spoken "End of message NEREP DOOM 11 FLIGHT"
Response: "DOOM 11 in receipt of message"

At this point MAINSAIL responds to "LAST CALLER" but then is quiet.

The above was not read as 3-element groups, but as a single string with a
4-element start of message (3SSS). If you parse the remaining characters
they will break to 3-element groups. In fact much of those 3-element groups
were contained in yesterday's DOOM 12 message traffic to RED RIVER.  Those
had the formatting of an AKAC 274 message.

[3SSS PIC OAQ AHZ CWX XTM HFZ HKZ TDN CLN WOK]

     Then at 1904z:

"RED RIVER; stand by for NEREP from DOOM FLIGHT" (repeated)

3SSS PICOAGAHZJJTTXKFWPJXLCLNWOK (repeated)

"This concludes NEREP for DOOM FLIGHT"

The 1904z NEREP can be parsed as the 4 element "preamble" and the remainder
as 3-element groups, with some commonality with previous traffic.

[NEREP = Nuclear Execution Report; or, more formally Nuclear Execution and
Reporting Plan.]

Jeff

-- 
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Jeff Haverlah               Coastal Texas
     Airspy HF+ Discovery   W6LVP loop  Various web SDRs
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