High Frequency Global Communications System
The High Frequency Global Communications System (HFGCS) is a worldwide network of radio stations of the United States Air Force (USAF) for the transmission of encrypted and unencrypted voice messages to aircraft and for air-to-ground communication.
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The messages mostly contain instructions (commands) and are called "skykings".
The system is also used to send Emergency Action Message (EAM), an encrypted short message used by the United States Armed Forces to order the use of nuclear weapons ordered by the National Command Authority . The most common application of the system is the common military communication in the chain of command.
Integrated systems
The HFGCS supports other state institutions and their communication systems through its own capacities. This includes:
- the White House Communications Agency (WHCA)
- Joint Chiefs of Staff (JCS)
- Air Mobility Command (AMC)
- Air Combat Command (ACC)
- AF Air Intelligence Agency (AIA),
- Air Force Materiel Command (AFMC)
- Air Force Space Command (AFSPC),
- United States Air Forces in Europe (USAFE)
- Pacific Air Forces (PACAF) and the
- Air Weather Service (AWS).
Individual evidence
- ↑ HFGCS ›Priyom.org. (No longer available online.) In: priyom.org. Archived from the original on October 19, 2016 ; Retrieved October 19, 2016 . Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
- ^ John Pike: High Frequency (HF) Global Communications System (HFGCS). In: www.globalsecurity.org. Retrieved October 19, 2016 .
