AF Form 3658: Global HF System Station Alert Log Download

AF Form 3658: Global HF System Station Alert Log Download – U.S. Air Force personnel operating or maintaining High Frequency (HF) communications stations use AF Form 3658, officially titled GLOBAL HF SYSTEM STATION ALERT LOG. This form provides a standardized way to document alerts, incidents, and operational events at stations within the High Frequency Global Communications System (HFGCS), formerly known as the Global High Frequency System (GHFS).

What Is the High Frequency Global Communications System (HFGCS)?

The HFGCS is a critical U.S. Air Force network of high-power single-sideband (SSB) shortwave transmitters and receivers. It enables reliable beyond-line-of-sight communications with aircraft in flight, ground stations, and select naval assets worldwide.

Key facts about the system:

  • Stations are remotely controlled primarily from Andrews Air Force Base (and historically Grand Forks AFB).
  • It supports command and control (C2), including Emergency Action Messages (EAMs) — time-sensitive, high-priority messages often associated with strategic operations.
  • Common frequencies include clusters around 4724, 8992, 11175, and 15016 kHz USB.
  • The system serves multiple commands, including Air Mobility Command (AMC), Air Combat Command (ACC), and others, on a priority basis. It also provides phone patches, weather updates, and mission coordination for aircraft.

HF remains essential for global, survivable communications when satellite or line-of-sight systems are unavailable or degraded.

Purpose of AF Form 3658

AF Form 3658 serves as the official log for recording station alerts and related events at HFGCS/Global HF sites. Operators and technicians use it to:

  • Document alerts, system anomalies, or incidents.
  • Track station status, watch periods, and responses.
  • Maintain an auditable record for operational accountability, maintenance, and compliance.

It pairs with related forms, such as AF Form 3657 (Global HF System Message Blank) and AF Form 3655 (HF Radio Facility Contact and Phone Patch Record). These support overall management of HF operations.

Accurate logging helps ensure mission readiness, supports investigations if needed, and contributes to the reliability of this strategic communications backbone.

Who Uses AF Form 3658?

  • HF Radio Operators and Station Controllers at HFGCS sites.
  • Communications Squadrons and Cyber/Communications personnel (AFSC in the 1D7X1 or similar career fields).
  • Maintenance technicians responsible for HF equipment.
  • Units supporting global C2, mobility, or strategic missions.

The form is prescribed under relevant Air Force Instructions (AFIs) governing communications operations and records management (exact prescribing directive is listed on the official form).

How to Access and Download AF Form 3658?

Official Download (PDF):
Download AF Form 3658 – GLOBAL HF SYSTEM STATION ALERT LOG

This is the current version hosted on the official Air Force e-Publishing site. Always use the latest form from e-Publishing.af.mil for compliance.

Tips for filling the form:

  • Use Adobe Acrobat (or compatible PDF editor) for digital completion.
  • Follow any block-specific instructions printed on the form (e.g., date/time groups in Zulu time, station identifiers, alert type, description, and operator initials).
  • Maintain logs in accordance with Air Force records management policies (AFMAN 33-363 or successor publications).

Note: Some blocks may require specific formatting for times, frequencies, call signs, or message precedence.

Best Practices for Completing AF Form 3658

  1. Be Timely and Accurate — Log events as they occur using Zulu (UTC) time.
  2. Use Clear Language — Describe alerts, frequencies monitored, actions taken, and resolution.
  3. Include Required Details — Station name/designator, operator info, and any cross-references to messages or other logs.
  4. Security Considerations — Handle the form according to classification and operations security (OPSEC) rules, as HFGCS supports sensitive C2 traffic.
  5. Retention — Follow the applicable Air Force Records Disposition Schedule for communications logs.

Units may have local supplements or Standard Operating Procedures (SOPs) that provide additional guidance specific to their HFGCS station.

Why Proper Documentation Matters?

In a system that carries critical traffic—including potential Emergency Action Messages—detailed station alert logs contribute to:

  • Mission Assurance — Quick identification and resolution of issues.
  • Accountability — Clear audit trail for inspections or after-action reviews.
  • Training & Improvement — Analysis of recurring alerts to enhance system performance and operator readiness.
  • Compliance — Meeting Air Force standards for communications reliability and records keeping.
  • Air Force e-Publishing (official source for all AF Forms and Publications): www.e-publishing.af.mil
  • HFGCS frequency and operational information (publicly monitored by radio enthusiasts on sites like RadioReference).
  • Air Force Instructions on spectrum management and global communications (search e-Publishing for relevant AFIs).

Download AF Form 3658 here:
https://static.e-publishing.af.mil/production/1/saf_cio_a6/form/af3658/af3658.pdf

For the most current guidance, consult your unit’s Communications Squadron, Cyberspace Operations section, or the prescribing AFI. Always verify you are using the latest revision from official Air Force channels.

This article is for informational purposes and to assist U.S. Air Force personnel and authorized users. Forms and procedures are subject to official Air Force directives.