[MilCom] MIL: 11175.0 USB - BLACK BODY; ARMY ANT; and IMPURITY

[Jeff Haverlah]

0617z 31 Jan 25

     11175.0 was active at 0010z 30 Jan 25 with HOUSE TOP broadcasting
their daily new UTC day communication test count.  USSTRATCOM CP.  Normal,
except HOUSE TOP was their 29 Jan 25 callword.  No follow up/revision heard.

     1616z IMPURITY (E6B; believed to be BIDE 47 ex TINKER) called ARMY ANT
(NCS HFGCS); but, within seconds ARMY ANT became active with a 48-character
EAM "3Z36BX."

     1621z IMPURITY called and raised ARMY ANT and entered the net.

     1625z immediately after completing the challenge process IMPURITY
called BLACK BODY with no response. This immediately called to mind the 29
Jan 25 UNANIMOUS numerous calls to WESSON OIL.

     1636z ARMY ANT broadcast a 30 character EAM 3ZPO3G.

     1713z IMPURITY called BACK BODY with no response. Within 15 minutes of
the call to BLACK BODY, IMPURITY/BIDE 47 entered the first of two tight
racetrack orbits near Santa Fe, New Mexico and Albuquerque, NM. Very
similar to the 29 Jan 25 activity of UNANIMOUS except the 29 Jan activity
was in the midwest (which had weather on 30 Jan 25.)  His racetrack orbits
can be followed on ADSB mapping sites.

     2158z IMPURITY called BLACK BODY.  BLACK BODY (good levels; processed
sounding audio) eventually called and raised IMPURITY for exchange of
signal checks and gone. (29 Jan 25 calls to WESSON OIL eventually produced
a response from HOUSE TOP, USSTRATCOM.)

     2214z IMPURITY called ARMY ANT with no known response. At this time
BIDE 47 was descending toward TINKER. Exiting the net (if done) was not
heard on 11175.0.

     The above loggings ignore the very active traffic activity of ARMY ANT
beginning at 1236z.

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