FS-1052: Scope

1. SCOPE. This standard is one of a series of standards pertaining to automatic high frequency (HF) radio equipment and operation. The basic standard is Federal Standard (FED-STD) 1045A, Telecommunications: HF Radio Automatic Link Establishment. Other standards in the series are:

• FED-STD-1046, HF Radio Automatic Networking
• Proposed (p) FED-STD-1047, HF Radio Automatic Message Delivery
• pFED-STD-1048, HF Radio Automatic Networking to Multiple-media
• pFED-STD-1049, HF Radio Automatic Operation In Stressed Environments
• pFED-STD-1050, HF Radio Baseline Parameters
• pFED-STD-1051, HF Radio System Controller Interface

1.1 Limitations. This standard establishes technical standards and design objectives (DO) that are necessary to ensure interoperability and to promote performance among modulators-demodulators (modems) used with high frequency (HF) radios. To ensure a minimum level of interoperability, certain waveforms and data rates are prescribed as mandatory. All other waveforms and data rates are optional. However, if any optional waveforms or data rates are to be implemented, the provisions of this document become mandatory for that implementation.

1.2 Application. This standard shall be used by all Federal departments and agencies in the design and procurement of modems for operation with HF radios. This standard is intended to assure interoperability among Federal HF radio systems employing data modems. This standard shall be used in the planning, design, and procurement, including lease and purchase, of all new data communications systems that utilize the HF radio media. This standard is mandatory within the Federal Government in the design and development of new HF radio modems. It is not intended that existing equipment and systems be immediately converted to comply with the provisions of this standard. New equipment and systems and those undergoing major modification or rehabilitation shall conform to this standard.

1.3 System standard and design objective (DO). The terms "system standard" and "design objective" (DO) are defined in FED-STD-1037. In this document, the word "shall" identifies mandatory system standards. The word "should" identifies design objectives which are desirable but not mandatory.