scope:

The terms and accompanying definitions contained in this standard are drawn from authoritative non-Government sources such as the International Telecommunication Union, the International Organization for Standardization, the Telecommunications Industry Association, and American National Standards Institute, as well as from numerous authoritative U.S. Government publications. The Federal Telecommunications Standards Committee (FTSC) NF Radio Subcommittee (HFRS) Standards Development Working Group (SDWG) developed a family of High Frequency Automatic Link Establishment (ALE) specifications that Federal Standard 1049/1 is one of the family of standards to be used in conjunction with the interoperability criteria for HF radio automatic link establishment operation.

All Federal departments and agencies shall use Federal Standard 1049/1 as the authoritative source of definitions for term and functions used in the preparation of all telecommunications documentation. The use of this standard by all Federal departments and agencies requiring ALE linking protection is mandatory.

The purpose of this standard is to improve the Federal acquisition process by providing Federal departments and agencies a comprehensive, authoritative source of definitions of term and linking protection parameters, and to prevent the establishment of unauthorized HF radio links or the unauthorized manipulation of legitimate HF radio automatic link establishment.