[MilCom] MIL: 11175.0 USB - FIRE BRAT; POST BED; and FAN BLADE

Jeff Haverlah jehaverlah at gmail.com
Thu Apr 9 21:29:41 EDT 2026


0125z  10 Apr 26

UTC 09 Apr 26

0039z: POST BED called FIRE BRAT (NCS) and raised MAINSAIL to exit the net.
0043z: POST BED exited the net; AED768 was just north of NEW YORK CITY,
southbound toward PAX RIVER at the time of the broadcast.

0126z: OLIVE 27 called ANY JET, ANY RADIO for a radio check; sitting on the
tarmac at OFFUTT prior to take-off at the time of broadcast.

========
0152z: FIRE BRAT; MTAKIK; P1.
MTAKIKWSBNPEKZYMBLISIGCL6UHI3P
[Fed to TACAMO PAC.]

0220z: FAN BLADE (pre0000z RAT FINK); MTAKIK; h+20/h+50 TACAMO PAC restoral
rebroadcast window.
========
[One and done; no 22.7 KHz VLF FSK MSK broadcast detected. Similar to one
and done TACAMO PAC activity on 06/07 Apr 26.]

0224z: FAN BLADE to FIRE BRAT (in the blind): "I'm in receipt of the
following traffic: MTAKIK."

0226z: FAN BLADE called and raised MAINSAIL to exit the net.
0231z: FAN BLADE exited the net.

========
0422z: FIRE BRAT; 6FZCUF[15]; 22 characters; P4.
6FZCUFCUMDGY4NMB56I5TX
========

========
0434z: FIRE BRAT; MTBHEK; P1.
MTBHEKJN7PPKVMGMD2PN7HTRXQD2FG

0501z: FIRE BRAT; MTBHEK; technical problems; quiet.
0503z: FIRE BRAT; MTBHEK; h+00/h+30 NCS/ABNCP/Gulf restoral rebroadcast
window.
0530z: FIRE BRAT; MTGHEK; NCS restoral.
0532z: FIRE BRAT Standing by for traffic.
========

Quiet.

========
1542z: FIRE BRAT; 6CKEMD; 59 characters; P2.
6CKEMD7YTUDLPCZJGVKFJGVXYPCFOSB3RHULDIY37LWESBHOHULDIY37LWD

Rare. Reformatted after seeing commonality with the 07 Apr 26 59 character
string. The dataset is too small.

𝟼𝙲𝙺𝙴𝙼𝙳  [𝙿𝚛𝚎𝚊𝚖𝚋𝚕𝚎; 𝟼]
𝟽𝚈𝚃𝚄𝙳𝙻  [𝟼]
𝙿𝙲𝚉𝙹  [𝟺]
𝙶𝚅𝙺𝙵𝙹  [𝟻]
𝙶𝚅𝚇𝚈  [𝟺]
𝙿𝙲𝙵𝙾  [𝟺]
𝚂𝙱𝟹𝚁𝙷𝚄𝙻𝙳𝙸𝚈𝟹𝟽𝙻𝚆𝙴  [𝟷𝟻]
𝚂𝙱𝙷𝙾𝙷𝚄𝙻𝙳𝙸𝚈𝟹𝟽𝙻𝚆𝙳  [𝟷𝟻]

Or (to preserve the potential static positioning of the "P"s)...

𝟼𝙲𝙺𝙴𝙼𝙳 [Preamble; 6]
𝟽𝚈𝚃𝚄𝙳𝙻  [6]
𝙿𝙲𝚉  [3]
𝙹𝙶𝚅𝙺𝙵  [5]
𝙹𝙶𝚅𝚇𝚈  [5]
𝙿𝙲𝙵𝙾  [4]
𝚂𝙱𝟹𝚁𝙷𝚄𝙻𝙳𝙸𝚈𝟹𝟽𝙻𝚆𝙴  [𝟷𝟻]
𝚂𝙱𝙷𝙾𝙷𝚄𝙻𝙳𝙸𝚈𝟹𝟽𝙻𝚆𝙳  [𝟷𝟻]

https://neetintel.github.io/structure_heatmap_59char.html

1557z: FIRE BRAT; 6CE3M3; 35 characters; P2.
6CE3MEY3L7WRHRPULFGXJRJBVJFZP4U2L7E

1606z: FIRE BRAT; 6CE3ME; echo rebroadcast; 11175.0 only; heard on the
UTwente SDR.

1612z: FIRE BRAT; 6FNSRV; 30 Characters; P4; rare for this series.
6FNSRVNFRSUZCRKRRL677RUE774N2P

Reformatted to conform with previous 30 strings in this series.

𝟼𝙵𝙽𝚂𝚁𝚅 [𝙿𝚛𝚎𝚊𝚖𝚋𝚕𝚎; 𝟼]
𝙽𝙵𝚁𝚂𝚄𝚉𝙲𝚁𝙺𝚁𝚁𝙻𝟼 [𝟷𝟹]
𝟽𝟽𝚁𝚄𝙴  [𝟻]
𝟽𝟽𝟺𝙽𝟸  [𝟻]
𝙿  [𝟷]

https://neetintel.github.io/structure_heatmap_30char.html

1616z: FIRE BRAT; 6FNSRV; echo rebroadcast; 11175 only UTwente SDR.

1631z: FIRE BRAT Standing by for traffic.
1700z: FIRE BRAT Standing by for traffic.
1731z: FIRE BRAT Standing by for traffic.

1803z: FIRE BRAT; MTLZ5Q; P1; poor transmission (in and out).
MTLZ5QPP6VTRFNZ36GVCA4XT3XRJDG

1806z: FIRE BRAT; MTA272; P1.
MTA272JT62UZU33E3JTPEJAYT47NFA

1808z: FIRE BRAT; MTXAKV; P1.
MTXAKVSJHZQGQ2DN525TZYIEIWTVER

1815z: FIRE BRAT; MTIEV5; P1.
MTIEV5JGP2X3YZ4KXKDILRRJIK6WH5

1831z: FIRE BRAT; MTIEV5; MTXAKV; MTA272; h+00/h+30 NCS/ABNCP/Gulf restoral
rebroadcast window.

1839z: FIRE BRAT Standing by for traffic.

1842z: FIRE BRAT; MT5CBM; P1.
MT5CBMSTVHKWPELSLMDMSSXUVH4RLP
========

2016z: MAINSAIL with a slow spoken test count.

2116z: MAINSAIL with test count.

========
2134z: FIRE BRAT; FOR EQUAL 49; 6CRQE4; P2.
6CRQE4M2NYJYXAQQA26YZ5Z6WQVOAH

[30 minutes.]
2202z: FIRE BRAT; MTG4GX; P1.
MTG4GXWIPTBTSJOAMNZ62JYKBQNARG
[Fed to TACAMO PAC.]

2220z: FAN BLADE (presumed E6B; not visible on ADSB mapping sites); MTG4GX;
PAC restoral.

2236z: FAN BLADE called MAINSAIL.
2237z: FAN BLADE called and raised FIRE BRAT to enter the net.
2242z: FAN BLADE entered the net.

[2250z+/-: 22.7 KHz (PAC) VLF FSK MSK broadcast indicated on the W1VD VLF
Grabber website.]
2250z: FAN BLADE; MTG4GX; PAC restoral.
2320z: FAN BLADE; MTG4GX; PAC restoral.
2350z: FAN BLADE; MTG4GX; PAC restoral.
========

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