[MilCom] MIL: 11175.0 USB - LEG BRACE; DOORBELL; GLASSFULL; FERN POT; and IRON WEED

Tue Apr 21 03:11:11 EDT 2026

0706z  21 Apr 26

UTC 19 Apr 26

Major exercise day with a focus on LANT.
Long lived (hours) messages in their traffic queue.
It was obvious that this was a 24 hour (8/8/8) airborne alert event with
continuous restoral activity throughout the UTC day(s) using very long
lived message strings in their traffic queues. TACAMO LANT was active with
a continuous 24 hour (1100z - 1100z) cyclic pattern of VLF FSK MSK
broadcasts about every 2 hours throughout most of the day. TACAMO PAC was
active with VLF activity but not to the extent of LANT.
It's a multi day event.

--------

0129z: LAJES with test count.

[Two hour standing by for traffic window. AKAC 274 traffic.]
========
0301z: LEG BRACE Standing by for traffic.
0332z: LEG BRACE Standing by for traffic.
0402z: LEG BRACE with test count.
0403z: LEG BRACE Standing by for traffic.

0418z: GLASSFULL (presumed E6B; not seen on ADSB mapping sites; TACAMO PAC)
with a message (AKAC 274) of 5 3-item groups with timestamp and
authenticator. The groups appear to be a subset of the following traffic.

0428z: DOORBELL (presumed E6B; not seen on ADSB mapping sites) with a
message (AKAC 274) OF 12 3-item groups with timestamp and authenticator.
UKO YIA VSL IDC NZK UTI YGI BZW VSBHVO PFM TGC
Time: 28
Authentication: IP

0432z: LEG BRACE Standing by for traffic.
========

Quiet.

0900z: Nothing heard.

[0916z+/-: AF5326 E6B launched from PAX RIVER and flew to the ATLANTIC;
TACAMO LANT.]

[Very active from this point.]
========
0930z: LEG BRACE Standing by for traffic.
1002z: LEG BRACE Standing by for traffic.
1030z: LEG BRACE Standing by for traffic.

1032z: LEG BRACE; 343SJB; P1.
343SJBEXHZYMK6DQJUELUMT4EJO53C
[Fed to TACAMO LANT and TACAMO PAC.]

[1100z+/-: 17.8 KHz (LANT) - TACAMO LANT begins their cyclic VLF FSK MSK
broadcasts on an approximate 2-hour cycle+/- for 24 hours.]

1100z: LEG BRACE Standing by for traffic.

1110z: AFK (nothing heard on archived audio).
1140z: AFK (nothing heard on archived audio).
1210z: AFK (nothing heard on archived audio)

========
1302z: LEG BRACE; 34GCAX; P1.
34GCAX3OTTVMXWSYAQXV3IQXMOJRQ6
[Fed to TACAMO LANT and TACAMO PAT.]

1410z: FERN POT; 34GCAX; 343SJB; LANT restoral.

1437z: LEG BRACE; 43YOK3; 32 characters; P4.
43YOK3WHOXBTYTM43BC2UYLDEUYLDAYH

1439z; LEG BRACE; 43KPYR; 27 characters; P4.
43KPYRIP54A2S3WLMIIN3VTF7TV

1446z: LEG BRACE; 6CW7JY; P2.
6CW7JYEWU45YIXU5VIVGTGY3MZBRGW

1502z: LEG BRACE; 34DPY3; P1.
34DPY3L2GO62A4LMDTQFZGWKAEJZHM
[Fed to TACAMO LANT and TACAMO PAC.]

1504z: GLASSFULL called MAINSAIL (TACAMO PAC).
1505z: GLASSFULL called LEG BRACE.
1507z: GLASSFULL called LEG BRACE.
1508z: GLASSFULL called LEG BRACE.
1510z: GLASSFULL called LEG BRACE.

1553z: GLASSFULL; 34GCAX; 3343SJB; h+20/h+50 TACAMO PAC restoral
rebroadcast window.
1558z: GLASSFULL Standing by for traffic.

1559z: GLASSFULL - "SAN FRANCISCO RADIO, this is GLASSFULL. Repeat your
last."

1610z: FERN POT; 34DPY3; 34GCAX; E43SJB; LANT restoral.
Standing by for traffic.

1620z: GLASSFULL; 34DPY3; 34GCAX; 343SJB; PAC restoral.
Standing by for traffic.

1640z: FERN POT; 34DPY3; 34GCAX; 343SJB; LANT restoral.
Standing by for traffic.

1650z: GLASSFULL; 34DPY3; 34GCAX; 343SJB; PAC restoral.
Standing by for traffic.

1710z: FERN POT; 34DPY3; 34GCAX; 343SJB; LANT restoral.
Standing by for traffic.

1737z: LEG BRACE; 6CO6ED; 40 characters; P2.
6CO6ED477NRYAT6MBS4AMBSOBQR5QUKJVBFT4HMU
[NCS restoral queue.]

1740z: FERN POT: 34DPY3; 34GCAX; 343SJB; LANT restoral.
Standing by for traffic.

1741z: LEG BRACE; 6CUHMT; 35 characters; P2.
6CUHMTTIVVUJE2CG6LDBFSGGVCELD2CX6OP
[NCS restoral queue.]

1744z: LEG BRACE; 43HHR4; 27 characters; P4.
43HHR4DDIKYZHVRDNIE37NIE76M

1747z: LEG BRACE; 4342BE; 31; P4.
434WBEAUV3E5Q3Q77ROOFGHVVPK7EIY.

[1755z: AFDE94 E6B launched from PAX RIVER to the ATLANTIC of the NORTH
CAROLINA coast; TACAMO LANT FERN POT2.]

1750z: GLASS FULL; 34DPY3; 34GCAX; 3435JB; PAC restoral
Standing by for traffic.

1809z: IRONWEED (suspected E6B) called ? on 8992.0.

1810z: FERN POT; 34DPY3; 34GCAX; 3435JB; LANT restoral.
Standing by for traffic.

1820z: GLASS FULL; 34DPY3; 34GCAX; 3435JB; PAC restoral.
Standing by for traffic.

1830z: LEG BRACE; 6CUHMT; 6CO6EO; NCS restoral of P2 strings.

1840z: FERN POT; 34DPY3; 34GCAX; 3435JB; LANT restoral.
Standing by for traffic.

1842z: LEG BRACE; 6CISPV; 35 characters; P2.
6CISPVSK5JQXUHR7KVPR2XNE7PDCJOKLDVU

1845z: LEG BRACE; 4345ZZ; 22 character; P4.
4345ZZ7NXQXL62OJOWKQVV

1846z: LEG BRACE; 6CWHWF; P2.
6CWHWFELVA2IBZUF57Z7V6ZR2PW4QI

1850z: GLASS FULL; 34DPY3; 34GCAX; out (3435JB from 1032z expired); PAC
restoral.

1857z: LEG BRACE; UQSZPD; 50 characters; P3.
UQSZPD2YEP6S2QEENFYEKDJM4GRRMARRT6ZRRRVVVS2V6YJTAH
Disregard.

1902z: LEG BRACE; UQSZPD; 50 characters (common to these events); P3.
UQSZPD2YEP6S2QEENFYEKDJM4GRRMARRT6ZRRRVVVS2V6YJTAH

1907z: LEG BRACE; 34RUEK; P1.
34RUEKXQ2F52ASP2YYLRXZQOJWIR6T

1910z: LEG BRACE; 3434NK; P1.
3434NKVL2LY4T7SHY676NX5BNP5VBR

1910z: FERN POT; 34DPY3; 34FCAX; out (expired); LANT restoral.
Standing by for traffic.
(Dualling with LEG BRACE.)

1915z: LEG BRACE; 6CUHMT; 6CO6ED; NCS restoral (delayed by higher priority
traffic).

1920z: GLASS FULL; 34DPY3; 346CAX; PAC restoral; dualling under LEG BRACE.
Standing by for traffic.

1940z: FERN POT; 34DPY3; 34GCAX; LANT restoral.
Standing by for traffic.

1950z: GLASS FULL; 34DPY3; 34GCAX; PAC restoral.
Standing by for traffic.

2010z: FERN POT; 34DPY3; 34GCAX; LANT restoral.
Standing by for traffic.

2020z: GLASS FULL; 34DPY3; 34GCAX; PAC restoral.
Standing by for traffic.

2043z: FERN POT; 34DPY3; 34GCAX; LANT restoral.
Standing by for traffic.

2050z: GLASS FULL; 34DPY3; 34GCAX; PAC restoral.
Standing by for traffic.

2110z: FERN POT; 34DPY3; 34GCAX; LANT restoral.
Standing by for traffic.

2120z: GLASS FULL; 34DPY3; 34GCAX; PAC restoral.
Standing by for traffic.
[34GCAX expired; 1302z]

2138z: LEG BRACE; 34PNGB; P1.
34PNGBUMGPGB7XFNE6C6CNIALG4TN6

[2140z: FERN POT covered by the following.]
2140z: FERN BRACE; 34DTY6; P1.
34DTY6JI4DOXNYHTDGTJSFIFRGTZLK

2142z: LEG BRACE; 43E2UW; 27 characters; P4.
43E2UWECJ7ZDKSZEBO5PH3W7AFA

2150z: GLASS FULL; 34DPY3; PAC restoral.
No Standing by for traffic.

2300z: LEG BRACE; 34DTY6; 34PNGB; NCS restoral.

2210z: FERN POT; 34DPY3; LANT restoral.
Standing by for traffic.

2218z: LEG BRACE; 34Q23P; P1.
34Q23PALZSLJAO3PWHFV766L5DGK7Y

2220z: GLASS FULL unheard.

2221z: LEG BRACE; 34Q23P; P1.
34Q23PALZSLJAO3PWHFV766L5DGK7Y

2221z: LEG BRACE; 34FGW4; P1.
34FGW4XRYNSKDE74MK3NHLUWJK564T

2230z: LEG BRACE; 34FGW4; 34Q23P; 34DTY6; NCS restoral.

2236z: LEG BRACE; 34WIVG; P1.
34WIVG22XSX44UCGP3UPXYRNQRT6AG
[Fed to TACAMO LANT and TACAMO PAC.]

2300z: LEG BRACE; 34FGW4; 34Q23P; 34DTY6; NCS restoral.

2310z: FERN POT; 34WIVG; LANT restoral.

2320z: GLASS FULL unheard.

2340z; FERN POT; 342IVG; LANT restoral.

Post 0000z 20 UTC

LEG BRACE ------> GLOAMING (sounds like; NCS)
FERN POT ------> POPULATE (TACAMO LANT)
GLASS FULL ------> OUTCLASS (TACAMO PAC)

This activity finally came to a pause at 1100z 20 Apr 26 with TACAMO LANT'S
last cyclic (every 2 hours+/-) VLF session of this particular portion of
the event; however the event was fully active throughout UTC 20 Apr 26 and
into 21 Apr 26.

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