[MilCom] MIL: 11175.0 USB - CHOW CHOW; CALM LAKE; and RED KING

[Jeff Haverlah]

0156z 11 Dec 25

UTC 10 Dec 25

A very busy NCS message traffic UTC day.
Gulf E6B (ABNCP mission?) with multiple 888800 VLF strings (no known HF
restoral traffic).

0010z: RED KING (pre0000z APPETITE); SXJ7RG; h+10/h+40 TACAMO LANT restoral
rebroadcast window.

0023z: CALM LAKE (NCS); SXOC63; P1.
SXOC63BDXDDINLH7DFR2YLBJ4NJR6E
[Fed to TACAMO LANT's active restoral queue.]

[0023z+/-: 17.8 KHz (LANT) VLF FSK MSK broadcast indicated on the W1VD VLF
Grabber website.]

0030z: CHOWCHOW with communications test count.
0031z: CHOWCHOW with communications test count.

0040z: RED KING; SXOC63; SXJ7RG; restoral.
0110z: RED KING; SXOC63; restoral; (SXJ7RG expired in the queue).
0140z: RED KING; SXOC63; restoral; past the "normal" 2 hour window.
[AEDAA5 returning to the Atlantic coast.]

0303z: MAINSAIL with test count.

========
0316z: CALM LAKE; SXJUBF; P1.
SXJUBFHWKRYSNHCJVBB2SZOUVPSGXY
========

Quiet.

========
0555z: CALM LAKE; AKPDFY; 35 characters; P2.
AKPDFYAKBCGUBLK4LKQPFGYCSJEHCSJEXBS

Reformatted to capture the final 15 characters and the block's internal
5-item pattern.

AKPDFY
AKBCGUBLK4LKQP
FGYCS
JEHCS
JEXBS
========

[30 minute message traffic window.]
========
0709z: CALM LAKE; SXUTOW; P1.
SXUTOWNPCXJO3S3E746H4ZEEKI77LN

0716z: CALM LAKE; SXLT7B; P1.
SXLT7BG7677KAYRNZEW5KFH434DECX
"More to follow"; "This is CLAM LAKE; disregard."

0720z: CALM LAKE; SXLT7B in full; out.

0722z: CALM LAKE; SXYFSZ; P1.
SX6YFSZTACOKGCZULJST6QM2L7N536

0725z: CALM LAKE; SXBF3D; P1.
SXBF3DCYPUNNEHARFJ42KGDAF2Z6JU

0728z: CALM LAKE; SXGGCO; P1.
SXGGCOVQD5RSCCX2VVOLLFP7LEDJPT

0731z: CALM LAKE (different operator); SX66CO; SXBF3D; SXYFSZ; h+00/h+30
NCS/ABNCP/Gulf restoral rebroadcast window.
========

Quiet.

[3 hour traffic window.]
========
1303z: CALM LAKE; SXZOH6; P1.
SXZOH6Z33HFTLOZSPJRDJRRCSPXDYU

1307z: CALM LAKE; SX6YPJ; P1.
SX6YPJ3ODQR2O65DEZX76I4NSRHYCO

1330z: CALM LAKE; SX6YPJ; SXZOH6; restoral.

1336z: CALM LAKE; SXH77P; P1.
SXH77PU6O7SFJ6R2OCSTFBBHNXJSEA

********
1338z: CALM LAKE; AKULYV; 25 characters; P4.
AKULYV7T536GBNHNNV6ZOW7JF
********

1401z: CALM LAKE; SXH77P; SX6YPJ; SXZOH6; restoral.

1424z: SIGONELLA with test count (11175 UTwente SDR).

1430z: CALM LAKE; SX4NZX; P1.
SX4NZXBWASBIDJBMEKBVSL4W6BTJAX

1434z: CALM LAKE; SX4NZX; restoral; earlier strings expired in queue.
1500z: CALM LAKE; SX4NZX; restoral.
1530z: CALM LAKE; SX4NZX; restoral.
1600z: CALM LAKE; SX4NZX; stop; disregard (expired in queue).
========

========
1703z: CALM LAKE; SXZGIH; P1.
SXZGIHPO7BKBDJPBKKWS34PP32K7C4

1733z: CALM LAKE; SXUN6X; P1.
SXUN6XQECIMQOI3GLOY562AHWOC3N6
========

[1748z+/-: AFCA1E E6B launched from TINKER to the Gulf for multiple 888800
VLF sessions; and return to TINKER. NOTAM Gulf reservation: 1830z - 2300z.
Backend callword never logged.]

1806z: SIGONELLA with test count.

[1925z+/-: AE4337 E6B launched from OFFUTT south then eastbound to
KNOWVILLE, TN. Backend callword never logged.]

========
1940z: 27.8 KHz (Gulf) VLF FSK MSK broadcast; 888800.
888800101810SSCCIISSOOTTMM8888
Embedded datetime group was while AFCA1E was southbound just north of FORT
WORTH, TX. AEHF? MUX digital?

[There's a MSK indication prior to the 2022z that may indicate an 888800
transmission between 2000z and 2022z for a potential total of 4 broadcasts
during this session.]

2022z: 27.8 KHz VLF FSK MSK broadcast; 888800; later datetime group within
string (fumble deleted the transcript).

2050z+/-: 27.8 KHz indicated (W1VD Grabber) FSK MSK broadcast; presumed
888800 string.
========

[During the above Gulf (ABNCP?) activity the NCS becomes very active with
message traffic. Very busy 3 hour window follows. This may not be
comprehensive.]
========
2022z: CALM LAKE; SXHKSU; P1.
SXHKSUJYX5N7LINVCDIBLCEF6LFDHM

2029z: CALM LAKE; SXS6T5; P1.
SXS6T56ZM3AHK63M5TPUBFO3HVFEK6

2031z: CALM LAKE; SXR4UA; P1.
SXR4UAOHHZVQN3VFM7FFKVAFJZ6Y23

2033z: CALM LAKE; SXEQWB; P1.
SXEQWBQSY6MFGCRK6X3WEYYGG7QZNS

2036z: CALM LAKE; SXEQWB; SXR4UA; SXS6T5; restoral.
2043z: CALM LAKE Standing by for traffic.
2102z: CALM LAKE; SXEQWB; SXR4UA; SXS6T5; restoral.

2119z: CALM LAKE; SXUCGT; P1.
SXUCGTIIC746HWMQBGXR7EV5A4BTRH

2130z: CALM LAKE; SXN4TG; P1.
SXN4TGDZWDNMJJUCBRRQX6UASUGVPH
[In their queue but not used immediately.]

2132z: CALM LAKE; SXUCGT; SXEQUB; SXR4UA; restoral.
2200z: CALM LAKE; SXUCGT; SXEQUB; SX4RUA; restoral.

2208z: CALM LAKE; SX5RYX; P1.
SX5RYXV7LZA74R3W6WP2TJR7JTPH4Z (maybe an error or 2)

2212z: CALM LAKE; SX42Y3; P1.
SX42Y3HHUFWERRFDFUQKDQ5COYQXPA

2230z: CALM LAKE; SX42Y3; SX5RYX; SXN4TG (now used in queue; SX4RUA
expired); restoral.

2249z: MAINSAIL with test count.

********
2247z: CALM LAKE; FOR FELIX 55 (sounds like); XBWGFE; P2.
XBWGFEJO4MJYUSTJZS24R72ZJBNK5Q

2300z: CALM LAKE; SX42Y3; SX5RYY; SXN4TG; restoral.

[2303z+/-: AF3821 E6B launched from PAX to the Atlantic; TACAMO LANT.]

2310z: RED KING called and eventually raised CALM LAKE to enter the net.
2314z: RED KING entered the net.

[30 minute window.]
2316z: CALM LAKE; SXWC63; P1.
SXWC63GL77XPVUUJ6MJIPNPIGZX4EL
[Fed to TACAMO LANT.]

2321z: CALM LAKE; SXWC63; echo rebroadcast; good levels on Ohio Valley SDR;
weak on coastal SDRs; 11175.0.

2331z: CALM LAKE; SX42Y3; SX5RYX; restoral; SXN4TG expired in queue.
2336z: CALM LAKE Standing by for traffic.
[0000z: Nothing heard; expired.]
========

2340z: RED KING; SXWC63; LANT restoral.
[0000z 17.8 KHz VLF FSK MSK broadcast]
[RED KING ---> REYNOLDS post 0000z.]

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