[MilCom] MIL: 11175.0 USB - MAIL FAN; CRITERIA; and LETTERBOX

[Jeff Haverlah]

0031z 03 Jun 26

UTC 02 Jun 26

P1: CB
P2: JA
P4: ZL

North Dakota missile field activity 1400z - 2000z.

0003z: MAINSAIL with test count.

0100z: CRITERIA (presumed AFE21E) called MAIL FAN (NCS) and raised MAINSAIL
to enter the net (3 hours after launching; and after initial "odd" VLF
activity over the ATLANTIC). He would not respond to MAINSAIL.

0103z: MAIL FAN responded and proceeded to challenge CRITERIA into the net.
0104z: CRITERIA entered the net.

========
0203z: MAIL FAN; CBN5XQ; P1.
CBN5XQ5E2AT4CPC2M42NG2ITBKSYPM
========

========
0222z: MAIL FAN; CBG6ZO; P1.
CBG6ZOWPN2LVA6YDOTK4OZ23GBRDKY
[Fed to TACAMO LANT.]

0225z: MAIL FAN; CBG6ZO; echo rebroadcast.

[0240z+/-: 17.8 KHz (LANT) VLF FSK MSK broadcast.]

0240z: CRITERIA; CBG6ZO; h+10/h+40 TACAMO LANT restoral rebroadcast window.

[0309z: Very weak station (somethingCREEK maybe; or ?) called mainsail, and
"standing by for traffic" and quiet.]

0310z: CRITERIA; CBG6ZO; LANT restoral.
0340z: CRITERIA; CBG6ZO; LANT restoral.
0410z: CRITERIA; CBG6ZO; LANT restoral.
========

0428z: CRITERIA: called and raised MAIL FAN to exit the net.
0430z: CRITERIA exited the net; approaching PAX RIVER at that time.

========
0547z: MAIL FAN; ZLH4FN; 22 characters; P4.
ZLH4FNBE6CDWN3CAX42GOZ

0549z: MAIL FAN; ZLYTT6; 41 characters; P4.
ZLYTT62FS5KF6CB4HKER3V7CLLHUETKFJJZHNPHUU

Reformatted for structure:

𝚉𝙻𝚈𝚃𝚃𝟼 [𝙿𝚛𝚎𝚊𝚖𝚋𝚕𝚎; 𝟼]
𝟸𝙵𝚂𝟻𝙺𝙵𝟼𝙲𝙱𝟺  [𝟷𝟶]
𝙷𝙺𝙴𝚁𝟹𝚅𝟽𝙲𝙻𝙻  [𝟷𝟶]
𝙷𝚄𝙴𝚃𝙺𝙵𝙹𝙹𝚉𝙷  [𝟷𝟶]
𝙽𝙿𝙷𝚄𝚄  [𝟻]
=========

[30 minute NCS restoral window.]
========
0710z: MAIL FAN; CBLXU3; P1.
CBLXU35F7TYSYEWUNZ4LFFLMJIHABY
[NCS restoral queue.]

0732z: MAIL FAN; CBLXU3; h+00/h+30 NCS/ABNCP/GULF restoral rebroadcast
window.

0736z: MAIL FAN; CB7R7J; P1.
CB747JXABCOW2C4PEYMAKW6LX4PFBO
Standing by for traffic.
========

Quiet.

========
1230z: MAIL FAN Standing by for traffic.

[1301z: AE8101 E6B launched from OFFUTT and flew to the NORTH DAKOTA
missile fields and entered into a 6 hour east/west loops and lines orbit
over the fields; left the fields at 2022z and returned to OFFUTT.]

1303+/-: LETTERBOX (presumed AE8101; very weak/unreadable in the noise
floor of a south central CONUS SDR raised MAINSAIL (weak to very weak) to
enter/exit the net.

1308z: LETTERBOX (entered) the net.
Time correlation suggests LETTERBOX entered the net.

1804z: MAIL FAN; JARNDD; 43 characters; P4.
JARNDDZD2Z6GANQX44ACAJQSYZJGMFP52BGI2GTYNBL
[Position 13 and 21 conform.]
https://neetintel.github.io/structure_heatmap_48char.html
========

Quiet.

========
2156z: MAIL FAN; CBGKPJ; P1.
CBGKPJQB7SLOJXMBXYD6AYTQZOWNSP
========

[2356z+/-: AE8101 E6B relaunched from OFFUTT northbound.]
-------------------------------------------------------------------------
Jeff Haverlah               Coastal Texas
     Airspy HF+ Discovery   W6LVP loop  Various web SDRs
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