[MilCom] MIL: 11175.0/4725.0 USB - COLD DUCK; THRASHER; and SHIPWRECK

Jeff Haverlah jehaverlah at gmail.com
Tue Nov 18 19:57:50 EST 2025


0055z 19 Nov 25

UTC 18 Nov 25

0000z: STILETTO (use old day's callword but changed to COLD DUCK [NCS]
during broadcast); 5BOSQJ; 5BSGPN; 5BBTY3; h+00/h+30 NCS/ABCNP/Gulf
restoral rebroadcast window.

[0010z+/-: AE81A5 E6B launched from PAX RIVER eastbound to the AR-111 for
apparent refueling over southern KENTUCKY, and return to PAX RIVER.

0030z: COLDDUCK; 5BOSQJ; 5BSGPN; 5BBTX3; restoral.

0057z: MAINSAIL with test count.

0100z: COLDDUCK; 5BOSQJ; 5BSGPN; 5BBTX3; restoral.

[0114z+/-: AF1DCC E6B launched from TRAVIS to the Pacific; TACAMO PAC.]

0115z: THRASHER (presumed AF1DCC) called and raised MAINSAIL to enter the
net.
0118z: THRASHER entered the net.

0131z: COLDDUCK; 5BOSQJ; 5BOSQJ; 5BBTX3; restoral.
========

========
0316z: COLD DUCK; 5B4ITY; P1.
5B4ITYKOCVAR2IBVQ2HPDNZINRYJ6U
[Fed to TACAMO PAC.]

0320z: THRASHER; 5B4ITK; h+20/h+50 TACAMO PAC restoral rebroadcast window.
[0326z: 22.7 KHz (PAC) VLF FSK MSK broadcast.]
0350z: THRASHER; 5B4ITK; restoral.
0420z: THRASHER; 5B4ITK; restoral.
========

Quiet.

0557z: LAJES with test count.
0609z: MAINSAIL with test count.
0907z: OFFUTT with test count.
1003z: ANDREWS with test count.

[1355z+/-: AFCA98 E6B launched from OFFUTT to the Gulf; remained over water
for about 7 hours before returning to the Texas coast and then apparently
as time of posting enroute to OFFUTT.]

1357z: MAINSAIL (apparently simulcasting) responds to SHIPWRECK (presumed
AFCA98; unheard on SDR in use).
1359z: SHIPWRECK entered the net.

1410z: MAINSAIL with test count

1435z: COLD DUCK; 5BCXJS; P1.
5BCXJSNLV32HMVOJ46M5zeroXFKYHZ6KN
[Apparently fed to the Gulf E6B]
["Zero" plainly spoken; no correction; no disregard; no rebroadcast
corrected later.]
[AFCA98 southbound between Tulsa and Oklahoma City at that time, enroute to
the Gulf.]
[No zeros, ones, eights or nines in these string; with extremely rare
exceptions.]

[1457z+-: AF973D E6B launched from OFFUTT to the HUTCHINSON, KS area to
enter a 4 hour racetrack orbit before returning to OFFUTT. No HF presence
noted; probably missed it.]

[1600z+/-: 27.2 KHz (Gulf) VLF FSK MSK broadcast indicated on the W1VD VLF
Grabber website. Missed the FSK broadcast; unable to confirm the "zero" if
it exited and if 5BCXJS was the string in use.]
[No HF restoral/rebroadcast activity logged from SHIPWRECK (or new backend
callword if any); probably there but missed by me on the SDRs in use.
Unable to confirm the "zero".]

[1655z+/-: A3041C static hex E6B launched from PAX RIVER, flew to
JACKSONVILL, FLORIDA for pattern work, and return to PAX RIVER.]

2121z: COLD DUCK to ALL STATIONS; 888800 (voice in background:
"Disregard"); "88 disregard." and out.

No further message traffic logged through 2359z.
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Jeff Haverlah               Coastal Texas
     Airspy HF+ Discovery   W6LVP loop  Various web SDRs
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