[MilCom] MIL: 11175.0 USB - SKYLIGHT; BACKFIELD; BLUE CHIP; BRACELET; ROYAL GEM; HEADBOARD; LANDFALL; and BRIMSTONE

Wed Aug 12 22:18:51 EDT 2026

0213z  13 Aug 26

UTC 12 Aug 26

0000z: BACKFIELD (NCS) TMRNRJ; TMCEYN; h+00/h+30 NCS/ABNCP/GULF restoral
rebroadcast window.

0005z: BACKFIELD; TMUCR3; P1; see 0334z 3.5 hours later.
TMUCR3CHLLSIJU6Z35VOU2ZMOX7LNV

0007z: BACKFIELD; NBDGFK; disregard

0009z: BACKFIELD; NBDGFK; 25 characters; P4.
NBDGFKGQNANU53KC3R2XBL623

0011z: BACKFIELD Standing by for traffic.
========

[0022z+/-: AF6E99 E6B relaunched from OFFUTT and flew to TINKER for a short
stop (minutes); relaunched from TINKER and repositioned to TRAVIS.]

0030z: BLUE CHIP (presumed E6B; time correlation suggests AF6E99) worked
MAINSAIL/BACKFIELD to enter the net.
0033z: BLUE CHIP entered the net.
[Fair levels on NEW ENGLAND SDR; very weak but often readable on the
UTwente SDR;]

========
0334z: BACKFIELD; TMUCR3; disregarded during the 2nd reading; see 0005z.
========

0429z: BLUE CHIP worked MAINSAIL to exit the net.
0432z: BLUE CHIP exited the net while approaching TRAVIS from the northeast.

Quiet through 0857z

Strategic exercise activity follows. It's possible that the STARTEX was
0858z or perhaps around 1100z (0600 CONUS central daylight time).

[Not clear if this stand-alone string was part of the exercise.]
========
0858z: BACKFIELD; TMD3PJ; P1.
TMD3PJRJHWOTVFQFGTNW4BKGLWUCZY
========

NCS message traffic silence.
HF message traffic quiet until 1630z.
VLF traffic was very active throughout the event.

It began as if there was no NCS/ground command post component to provide
message traffic via the HFGCS at STARTEX.

Known Players:
NCS:  BACKFIELD - Immediately destroyed ("simulated no contact")
ABNCP: GULF E6B - BRACELET AEE6AC ex TINKER.
TACAMO LANT: ROYAL GEM; AE911D
TACAMO PAC: BRIMSTONE; AF3D06
Apparent CP: HEADBOARD (unknown; excellent audio with harmonic artifact)
Possible CP: LANDFALL (unknown)
Possible senior CP: SKYLIGHT (injected voice EAM to BRACELET; perhaps
USSTRATCOM or equivalent)

TACAMO surge:
[1025z+/-: AEE6AC E6B launched from TINKER southbound to the GULF.]

1033z: BRACELET (presumed AEE6AC) worked MAINSAIL to enter the net.
1037z: BRACELET entered the net.

[1049z+/-: AF3D06 E6B launched from TRAVIS to the PACIFIC.]

[1102z+/-: AE911D E6B launched from PAX RIVER and flew to the ATLANTIC.]

1105z: BACKFIELD responded to ROYAL GEM (presumed AE911D; unheard on SDR in
use), saying simply "SIMULATED NO CONTACT" and offered generic assistance.
NCS is gone. ROYAL GEM is suspected to have wanted to enter the net but had
no ground asset to do so. Presumed entered later through the ABNCP.

[1200z+: VLF message traffic began.]
[1223z+/-: 17.8 KHz (LANT) VLF FSK MSK broadcasts indicated on the W1VD VLF
Grabber website.]
[1223z+/-: 27.8 KHz (GULF) VLF FSK MSK broadcasts indicated on W1VD.]
[1243z+/-: 22.7 KHz (PAC) VLF FSK MSK broadcasts indicated on W1VD.]
Many VLF broadcasts throughout the day from each E6B.

[VLF traffic:]
1308z+/-: TMAXNOPOGSAPEG6O6GDJNWGYIOJN2D
[TACAMO HF restoral queue beginning at 1630z++]
1610z+/-: TMWDOCCTK4YH23OIH2LVJCFN5PCAG2
[TACAMO HF restoral queue beginning at 1630z++]

[Demarcation: TACAMO/ABNCP HF restoral activity and SKYMASTER activity
begins.]

1630z: BRACELET; TMWDOC; TMY4IP; ABNCP/GULF restoral.
TMY4IP6RP62JPJ44SWYOGBJBNFIE26
Standing by for traffic.

1635z: RANCH 11 calling SKYMASTER and passes traffic. SKYMASTER NEREP
traffic is handled over the course of this event. Last NEREP was logged at
2118z from BAKER 11.

1637z: BRACELET to ALL STATION: Message of 3 groups follows:
RAU AQC FNU time 1638 authentication LL

1640z: HEADBOARD calling LANDFALL and ANY STATION for a radio check. BAKER
11 responds with a LOUD AND CLEAR.

1640z: ROYAL GEM; TMWDOD; TMY4IP; LANT h+10/h+40 restoral.
Standing by for traffic.

1650z: BRIMSTONE; TMWDOD; TMY4IP; PAC h+20/h+50 restoral.
Standing by for traffic.

1659z: BRACELET to ROYAL GEM: Stand by for higher priority traffic.

1700z: BRACELET; TMWDOD; TMY4IP; ABNCP/GULF restoral.
Standing by for traffic.

1708z: BRIMSTONE called and eventually raised BRACELET to enter the net.

1711z: ROYAL GEM; TMWDOD; TMY4IP; LANT restoral.
Standing by for traffic.

1717z: BRIMSTONE entered the net through the ABNCP.

1718z: BRACELET called and worked ROYAL GEM (unheard on SDR).

1720z: BRIMSTONE; TMWDOC; TMY4IP; PAC restoral.
Standing by for traffic.

1727z: BRACELET worked ROYAL GEM and passed his message of 3 groups (RAU
AQC FNU 1728 NY ).

1731z: BRACELET; TMWDOC; TMY4IP; ABNCP restoral.
Standing by for traffic.

1741z: ROYAL GEM; TMWDOC; TMY4IP; LANT restoral.
Standing by for traffic.

1750z: BRIMSTONE; TMWDOC; TMY4IP; PAC restoral.
Standing by for traffic.

1755z: HEADBOARD (weak) worked ? (unable to ID; too weak; telco type
beeps/tones on signal) for an apparent signal check.

1757z: HEADBOARD to ANY STATION: "Request you port to Z125."

1800z: BRACELET; TMWDOC; TMY4IP; ABNCP restoral.
Standing by for traffic

1805z: HEADBOARD acknowledged receipt of 4-element traffic. SKYMASTER NEREP.

1805z: HEADBOARD to ANY STATION: "Port to Z125."

1810z: ROYAL GEM; TMWDOC; TMY4IP; LANT restoral.
Standing by for traffic.

1812z: SKYLIGHT (suspected ground CP; beeps/tones on audio) TMNX32; P1.
TMNX32JOLILCU6YUE7ZYX2D5GOLQUJ
SKYLIGHT passed that traffic in a slow, deliberate manner to BRACELET
(ABNCP). SKYLIGHT polled the participants (only one; BRACELET). It was as
if SKYLIGHT was injecting that string by voice to BRACELET. Maybe
USSTRATCOM or equivalent CP with that traffic. It ended up in the E6
restoral queues. 15016.0 USB.

1816z: BRIMSTONE (TACAMO PAC): TMFDKF; P1; new string.
TMFDKF34E4KISY4LNLRNEDDDETNVYC

1818z: ROYAL GEM; TMZG7K; P1.
TMZG7KZIGBEHQL"garbled"ORLSOT3D2IUVGJ3

1821z: BRIMSTONE; TMZG7K; P1.
TMZG7KZIGBEHQLWORLSOT3D2IUVGJ3 (note the W)

1825z: BRIMSTONE; TMNX32 from 1812z.

1830z: ROYAL GEM; TMZG7K rebroadcast as follows:
TMZG7KZIGBEHQL(item 15 "garbled")(item 16 OSCAR)RLSOTR3D2IUVGJ3
[The string was in ROYAL GEM's restoral queue. He would read this string as
above while it was active in his queue.] He dualled with BRACELET's 1830z
restoral rebroadcast session.

1830z: BRACELET; TMFDKF; TMWDOC; TMY4IP; ABNCP restoral.
SBFT?

1836z: BRIMSTONE; TMNX32; TMZG7K; rebroadcast (?).

1840z: ROYAL GEM; TMZG7K; TMFDKF; TMWDOC; LANT restoral.
Standing by for traffic.

1850z: BRIMSTONE; TMNX32; TMZG7K; TMFDKF; PAC restoral.
SBFT not heard.

1901z: BRACELET; TMNX32; TMZG7K; 5MFDKF; ABNCP restoral.

1909z: ROYAL GEM; TMNX32; rebroadcast.

1910z: ROYAL GEM; TMNX32; TMZG7K; TMFDKF; LANT restoral.
Standing by for traffic

1920z: BRIMSTONE; TMNX32; TMZG7K; TMFDKF; PAC restoral.
Standing by for traffic.

1930z: BRACELET; TMNX32; TMZG7K; TMFDKF; ABNCP restoral.
Standing by for traffic.

1940z: ROYAL GEM; TMNX32; TMZG7K; TMFDKF; LANT restoral.

1948z: BRACELET; TMOSIV; P1.
TMOSIVLKTX74LFTTIKTEBVOUUVCPTD
[Fed to LANT; PAC; GULF]

1950z: BRIMSTONE; TMOSIV; TMNX32; TMZG7K; PAC restoral.
Standing by for traffic.

2000z: BRACELET; TMOSIV; TMNX32; TMZG7K; ABNCP restoral.
Standing by for traffic.

2010z: ROYAL GEM; TMOSIV; TMNX32; TMZG7K; LANT restoral.
Standing by for traffic.

2020z: BRIMSTONE; TMOSIV; TMNX32; TMZG7K; PAC restoral.
Standing by for traffic.

2030z: BRACELET; TMOSIV; TMNX32; TMZG7K; ABNCP restoral.
Standing by for traffic.

2040z: ROYAL GEM; TMOSIV; TMNX32; TMZG7K; LANT restoral.
Standing by for traffic.

2050z: BRIMSTONE; TMOSIV; TMNX32; TMZG7K; PAC restoral.
Standing by for traffic.

2100z: BRACELET; TMOSIV; TMNX32; TMZG7K; ABNCP restoral; BRACELET was
northbound over HOUSTON, TEXAS during this broadcast.
Standing by for traffic.

2118z: BAKER 11 passed traffic to SKYMASTER. Last logged NEREP of the event.

2120z: ROYAL GEM; TMOSIV; TMNX32; TMZG7K; LANT restoral.
Standing by for traffic.

2130z: BRACELET; TMOSIV; TMNX32; TMZG7K; ABNCP restoral.
Standing by for traffic.

2140z: ROYAL GEM; TMOSIV; TMNX32; TMZG7K; LANT restoral.
Standing by for traffic.

2150z: BRIMSTONE; TMOSIV; TMNX32; TMZG7K; PAC restoral.
Standing by for traffic.
========
ABNCP, TACAMO PAC, and TACAMO LANT were near to home base by this point.

Quiet through 2359z.

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