[MilCom] MIL:11175.0 USB - CONTENDER; NO CHANCE; SHEEPMAN; OXIDATION; SUBSONIC; and LANCELOT

[Jeff Haverlah]

UTC 21 Feb 26

0005z: CONTENDER with communications test count.
[USSTRATCOM CP]

0459z: SHEEPMAN (suspected pre0000z CLAYBIRD; unheard on California SDR;
TACAMO PAC) worked MAINSAIL to exit the net.
0502z: SHEEPMAN exited the net.
[weak/fair levels on Ohio Valley and east coast SDRs; unheard on California
SDR; 11175. Although monitoring for h+20/h+30 restoral rebroadcasts of
37RYVG it was not heard by me on the SDRs in use. 2336z 22.7 KHz VLF
broadcast had been detected pre0000z.]

========
0612z: NO CHANCE (NCS); 37GLBR; P1.
37GLBRNCW6WQVDEQTTXTATU6XGEONP

0624z: NO CHANCE; 373XRK; P1.
373XRKHWPOJXHTCMY4CLG2BTSABND5

0630z: NO CHANCE; 373XRK; 37GLBK; h+00/h+30 NCS/ABNCP/Gulf restoral
rebroadcast window.

0637z: NO CHANCE Standing by for traffic.
========

0647z: MAINSAIL with test count.
0657z: MAINSAIL with test count.

Quiet.

[2.5 hour message traffic window.]
========
1431z: NO CHANCE; 3SCNGN; 48 characters; P4.
ESCNGNQ3VKVL7RDKRPKQ4M53AK6YSOOOBQ4MUEAK6SSOTP2K

Reformatted for structure (compare with 1605z):

𝙴𝚂𝙲𝙽𝙶𝙽 [𝙿𝚛𝚎𝚊𝚖𝚋𝚕𝚎; 𝟼]
𝚀𝟹𝚅𝙺𝚅𝙻  [𝟼]
𝟽𝚁𝙳  [𝟹]
𝙺𝚁𝙿  [𝟹]
𝙺𝚀𝟺𝙼𝟻𝟹𝙰𝙺𝟼𝚈𝚂𝙾𝙾𝙾  [𝟷𝟺]
𝙱𝚀𝟺𝙼𝚄𝙴𝙰𝙺𝟼𝚂𝚂𝙾𝚃𝙿  [𝟷𝟺]
𝙺 [𝟷]

1521z: NO CHANCE; ESX2V3; 22 characters; P4.
ESX2V3NXIMIEABZLR7EYXF

1523z: NO CHANCE; ESHAHB; 32 characters; P4.
ESHAHBAKQCU4IAORWYGNPWWSBYWQSES4

[1534z+/-: AEECF1 E6B launched from TINKER and flew east, then south
southwest to the Texas Gulf coast, then to west Texas

1547z: NO CHANCE; 37HFZN; P1.
37HFZNY3PBKGRKWV3DK6DSZKNIKVRP

1549z: NO CHANCE; disregard.
1550z: NO CHANCE; 37BAJH; P1.
37BAJHVGTUZISUVX6JV2CKZZZHIWSE

1556z: OXIDATION () worked NO CHANCE to enter the net.
1558z: OXIDATION entered the net.

1600z: NO CHANCE; 37HFZN; 37BAJH; NCS restoral.

[1602z+/-: AF7645 E6B launched from TINKER and flew east northeast for
apparent pattern work at GREENSBORO, NORTH CAROLINA and then south to
MACDILL.]

1605z: NO CHANCE; ESHYRD; 45 characters; P4.
ESHYRDTOYOJSKUSSH4GABLYWFAUUUHH4GWBLYWXAU3OU6

Reformatted for structure:

𝙴𝚂𝙷𝚈𝚁𝙳 [𝙿𝚛𝚎𝚊𝚖𝚋𝚕𝚎; 𝟼]
𝚃𝙾𝚈𝙾𝙹𝚂𝙺𝚄𝚂𝚂  [𝟷𝟶]
𝙷𝟺𝙶𝙰𝙱𝙻𝚈𝚆𝙵𝙰𝚄𝚄𝚄𝙷  [𝟷𝟺]
𝙷𝟺𝙶𝚆𝙱𝙻𝚈𝚆𝚇𝙰𝚄𝟹𝙾𝚄  [𝟷𝟺]
𝟼  [𝟷]

1608z: NO CHANCE Standing by for traffic.
========

2154z: MINNESOTA ONE (sounds like) worked MAINSAIL regarding a potential
phonepatch. MAINSAIL offered to relay but MINNESOTA ONE was apparently
conducting a connectivity check and required no further assistance.

[2200z: AFB721 launched from TINKER and flew southwest and then west.]

2206z: SUBSONIC (presumed AFB721) called and raised MAINSAIL/NO CHANCE to
enter the net.
2209z: SUBSONIC entered the net.

2300z: LANCELOT (presumed AF7645) called and eventually raised NO CHANCE to
exit the net.
2304z: LANCELOT exited the net; approaching MACDILL from the north at the
time of transmission.

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