[MilCom] MIL: 11175.0 USB - CHECKROOM; COGNIZANT; and WILLIAM

Jeff Haverlah jehaverlah at gmail.com
Mon Nov 10 19:50:17 EST 2025


0048z 11 Nov 25

UTC 10 Nov 25

With the exception of a 1.5 hour traffic window between 0553z and 0723z;
and between 2150z and 2351z the day was quiet.

There was no known E6B restoral rebroadcast or VLF activity logged.

The "FOR" traffic pattern with distinctive activity windows appeared to end
yesterday or the day before. There was no such activity today.

0000z: CHECKROOM (NCS; in the mush audio it initially sounded like
"treasurer") Standing by for traffic.
0030z: Nothing heard.

Quiet.

========
0553z: CHECKROOM; R6X4VA; 37 characters; P4.
R6X4VAKYKIM5JCPSJEZITWATMTWATRTWATU36

Reformatted to validate conformity with the series to date:

𝚁𝟼𝚇𝟺𝚅𝙰  [𝙿𝚛𝚎𝚊𝚖𝚋𝚕𝚎; 𝟼]
𝙺𝚈𝙺𝙸𝙼𝟻𝙹 [𝟽]
𝙲𝙿𝚂  [𝟹]
𝙹𝙴𝚉  [𝟹]
𝙸𝚃𝚆𝙰𝚃  [𝟻]
𝙼𝚃𝚆𝙰𝚃  [𝟻]
𝚁𝚃𝚆𝙰𝚃  [𝟻]
𝚄𝟹𝟼  [𝟹]
========

0630z: CHECKROOM Standing by for traffic.
0702z: CHECKROOM Standing by for traffic.

0718z: CHECKROOM; 5BO6D5; P1.
5BO6D5MRLZFMWEV6ZJE2LCCF2LJKZD

0720z: CHECKROOM; 5BMVE2; P1.
5BMVE24YT33XVZPSW3MGU4YD3F6GTN

0723z: CHECKROOM; 5BMVE2; P1.
5B6UEYR7XBYGPWX5XRD6VXNRXMTCPZ
========

0735z: WILLIAM (presumed E6B; not seen on ADSB mapping sites) called
CHECKROOM.
0736z: WILLIAM called CHECKROOM with no known response.

Quiet.

1504z: COGNIZANT (presumed E6B; not seen on ADSB mapping sites) called and
raised CHECKROOM to enter the net.
1507z: COGNIZANT entered the net.

1512z: SIGONELLA with test count; UTwente 11175.0.

1834z: CHECKROOM with test count.

2007z: COGNIZANT called and raised CHECKROOM but did not respond.

[2020z+/-: AE3A65 E6B launched from TINKER and eventually flew to OFFUTT.]

[2129+/-: AEBE5D E6B launched from TINKER westbound and return to TINKER.
He followed a similar route to yesterday's AF2A7A but not as far.]

========
2150z: CHECKROOM; R6B7PH; 22 characters; P4.
R6B7PH4DVZRNYYDSQTLZX3

2154z: CHECKROOM; R6B7PH; echo rebroadcast; 11175 Utwente; 11175 very weak
on east coast SDR.

2300z: CHECKROOM; 5B353Y; P1.
5B353Y33434NQVRHT3IEVRT3S6UBMR

2303z: CHECKROOM; 5B34XI; P1.
5B34XI3EOYP2LIIKZCJKLOXLZSAM2E

2306z: CHECKROOM; R6RERV; 31 characters; P4.
R6RERV4H3JDGY4RHVHKCBD72EFIOEA2

2310z: CHECKROOM; 5B353Y; echo rebroadcast.

2315z: CHECKROOM; 5B353Y; echo rebroadcast; UTwente 11175 SDR.
2317z; CHECKROOM; 5B34XI; echo rebroadcast; UTwente 11175 SDR.
2319z: CHECKROOM; R6RERV; echo rebroadcast; UTwente 11175 SDR.

2330z: CHECKROOM; 5B34XI; 5B353Y; h+00/h+30 NCS/ABNCP/Gulf restoral
rebroadcast window.

2335z: CHECKROOM; R6RERV; rebroadcast.
2338z: CHECKROOM; 5B34XI; rebroadcast.
2351z: CHECKROOM; 5B353Y; rebroadcast.
========
[Nothing heard at 0000z.]

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