NEET INTEL GitHub

NEET INTEL is a research project documenting the High Frequency Global Communications System (HFGCS) — a US Air Force shortwave network relaying short, encoded messages to military forces — and the Emergency Action Messages (EAMs) broadcast on it. Anyone with a shortwave receiver can hear them, but the messages are deliberately opaque, and little has been published about how they are structured or how their patterns shift over time. This site collects the project's analyses, recordings, and reference material in one place.

Emergency Action Messages are known to be highly structured. These pages group EAMs by character length and analyze them for repeating segments to identify candidate structural elements. Colored positions indicate possible pattern segments across messages. Click any colored position to highlight additional instances of that pattern.

Note: If the browser is unable to display the entire text of messages, the display automatically switches from individual characters to an abstract timeline view where colored segments represent pattern positions. (For desktop devices, try reducing the font size. For mobile devices, try turning your device to landscape mode to increase the vertical space.)

about_structure_heatmaps.htmlAbout These Heatmapscross_length_patterns.htmlPairs Across Lengths

SKYMASTER Events

2023202420252026230111 · JANUARY SKYMASTER230201 · FEBRUARY SKYMASTER230416 · GLOBAL THUNDER 23 SKYMASTER230421 · GLOBAL THUNDER 23 SKYMASTER II[?]230711 · GLOBAL STORM 23 FAKEMASTER230830 · AUGUST SKYMASTER230927 · SEPTEMBER SKYMASTER240111 · JANUARY SKYMASTER240207 · FAROE ISLANDS SKYMASTER240412 · APRIL SKYMASTER I (PRAIRIE VIGILANCE?)240418 · APRIL SKYMASTER II240515 · EAST COAST MINI-SKYMASTER240623 · NORWAY FAKEMASTER240821 · AUGUST SKYMASTER240925 · SEPTEMBER SKYMASTER241024 · GLOBAL THUNDER 25 SKYMASTER250108 · JANUARY SKYMASTER250416 · APRIL SKYMASTER250430 · APRIL NOTHINGMASTER250528 · MAY MINI-SKYMASTER250706 · LAJES FAKEMASTER250820 · GREENLAND SKYMASTER250822 · GREENLAND FAKEMASTER250924 · FAROE ISLANDS SKYMASTER251026 · GLOBAL THUNDER 26 SKYMASTER I251029 · GLOBAL THUNDER 26 SKYMASTER II260114 · JANUARY SKYMASTER260211 · FEBRUARY SKYMASTER260421 · APRIL NOTHINGMASTER260430 · APRIL SKYMASTER260513 · FAROE ISLANDS SKYMASTER260812 · AUGUST SKYMASTER260924 · SEPTEMBER FAKEMASTER
  • 230111JANUARY SKYMASTER2nd Wed
  • 230201FEBRUARY SKYMASTER1st Wed
  • 230416GLOBAL THUNDER 23 SKYMASTER3rd Sun
  • 230421GLOBAL THUNDER 23 SKYMASTER II[?]3rd Fri
  • 230711GLOBAL STORM 23 FAKEMASTER2nd Tue
  • 230830AUGUST SKYMASTER5th Wed
  • 230927SEPTEMBER SKYMASTER4th Wed
  • 240111JANUARY SKYMASTER2nd Thu
  • 240207FAROE ISLANDS SKYMASTER1st Wed
  • 240412APRIL SKYMASTER I (PRAIRIE VIGILANCE?)2nd Fri
  • 240418APRIL SKYMASTER II3rd Thu
  • 240515EAST COAST MINI-SKYMASTER3rd Wed
  • 240623NORWAY FAKEMASTER4th Sun
  • 240821AUGUST SKYMASTER3rd Wed
  • 240925SEPTEMBER SKYMASTER4th Wed
  • 241024GLOBAL THUNDER 25 SKYMASTER4th Thu
  • 250108JANUARY SKYMASTER2nd Wed
  • 250416APRIL SKYMASTER3rd Wed
  • 250430APRIL NOTHINGMASTER5th Wed
  • 250528MAY MINI-SKYMASTER4th Wed
  • 250706LAJES FAKEMASTER1st Sun
  • 250820GREENLAND SKYMASTER3rd Wed
  • 250822GREENLAND FAKEMASTER4th Fri
  • 250924FAROE ISLANDS SKYMASTER4th Wed
  • 251026GLOBAL THUNDER 26 SKYMASTER I4th Sun
  • 251029GLOBAL THUNDER 26 SKYMASTER II5th Wed
  • 260114JANUARY SKYMASTER2nd Wed
  • 260211FEBRUARY SKYMASTER2nd Wed
  • 260421APRIL NOTHINGMASTER3rd Tue
  • 260430APRIL SKYMASTER5th Thu
  • 260513FAROE ISLANDS SKYMASTER2nd Wed
  • 260812AUGUST SKYMASTER2nd Wed
  • 260924SEPTEMBER FAKEMASTER4th Thu

Forecasts

  • 2610## - 2611##GLOBAL THUNDER 27 SKYMASTER
2023 2024 2025 2026
230111 240111 250108 260114
230201 240207 260211
230416 240412 250416 260421
230421 240418 250430 260430
240515 250528 260513
230711 240623 250706
230830 240821 250820 260812
250822
230927 240925 250924 260924
241024 251026
251029

Structure by group

Formats by length

G4 block layout and reuse

Events and timelines

HFGCS EAM DAILY COMPILATION RECORDINGS PROJECT

The HFGCS EAM DAILY COMPILATION RECORDINGS PROJECT (DCRP) is the first attempt by NEET INTEL to collect recordings of EAMs broadcast on the HFGCS and share them with a wider audience. Unlike the later NEET INTEL DAILY TIMECARD PROJECT (DTCP), this series does not necessarily reflect comprehensive 24/7 HFGCS monitoring, and many of the videos represent a “whatever I happened to hear that day” effort, though the series does become more ambitious by its end (setting up for the more ambitious DTCP).

NEET INTEL DAILY TIMECARD PROJECT

The NEET INTEL DAILY TIMECARD PROJECT (DTCP) is the successor to the HFGCS EAM DAILY COMPILATION RECORDINGS PROJECT. The project generates daily timecards of transcribed Emergency Action Messages (EAMs) and/or Force Direction Messages (FDMs) broadcast by the US military over the High Frequency Global Communications System (HFGCS), paired with jpop, kpop, and occasionally cpop. Part 1 is comprehensive, starting 230623 and ending 240201, representing a 7-month period of continuous and near-comprehensive HFGCS coverage. The remainder of the project covers mostly non-consecutive dates, with several shorter periods of continuous coverage included.

HFGCS LIVESTREAM GALLERY

This gallery lists the HFGCS livestreams from the NEET INTEL YouTube channel by UTC day. Each day is split into two streams: A for the first half and B for the second. Until August 2025 the split was at midnight and noon US Eastern time, and since September 2025 it has been at midnight and noon UTC. Other streams, such as other frequencies, other regions, events and commentary, are listed under the day they aired. Days with a DTCP timecard have been reviewed, and days without one have not.

An HFGCS Wiki is a proposed project by NEET INTEL to provide a centralized repository of information about the HFGCS and EAMs. The scale of a project is too ambitious for a single person, but NEET INTEL initiated a pilot project in December 2025 to demonstrate what it could look like. Below are some examples of the Wiki's pages as saved by archive.org.

Contact

  • Email
  • Signal Email or contact on X to request Signal address
  • Substack https://neetintel.substack.com/

Support