MIL-STD-187-721 Interoperability And Performance Standard For Advanced Adaptive Hf RadioThe purpose of this document is to describe the technical parameters for adaptive high frequency HF radio that are more advanced than those described in MIL-STD-188-141. The advanced technology contained in this standard will guide the planning of military adaptive HF radio network technology into the 21st century. To fully understand and utilize this document, it is necessary to refer to portions of MIL-STD-188-141.

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MIL-STD-187-721D

FOREWORD

1. This military standard is approved for use by all Departments and Agencies of the

Department of Defense (DoD).

2. Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: HQ, U.S. Army Information Systems Engineering Command, ATTN: AMSEL-IE-CO, Fort Huachuca, Arizona 85613-5300, by using the self-addressed Standardization Document

Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter.

3. In accordance with DoD Instruction 4630.8, it is DoD policy that all forces for joint and combined operations be supported through compatible, interoperable, and integrated Command, Control, Communications, and Intelligence (C3I) systems. Furthermore, all C3I systems developed for use by U.S. forces are considered to be for joint use. The Director, Defense Information Systems Agency (DISA), serves as the DoD single point of contact for developing information technology standards to achieve interoperability and compatibility. All C3I systems and equipment shall conform to technical and procedural standards for compatibility and interoperability, as developed or recommended by the DISA.

4. Military Standards in the 187 series (MIL-STD-187-XXX) planning standards address telecommunications design parameters based on evolving technologies and concepts that may be subject to change. These planning standards differ from military standards in the

188 series (MIL-STD-188-XXX) which address telecommunications design parameters based on mature technologies. Nothing in a MIL-STD-187 series document is mandatory unless invoked in a contract, and then only to the extent of the contractual agreement.

5. Planning standards are developed considering present and future plans for the Defense Information System, commercial systems (both national and international), and North Atlantic Treaty Organization (NATO) and other allied military systems to meet U.S. military operations needs. These planning standards may be based on, or make reference to, draft or mature American National Standards Institute (ANSI) standards, International Telecommunications Union - Telecommunications (ITU-T) recommendations, International Organization for Standardization (ISO) standards, NATO standardization agreements (STANAG), and other standards, wherever applicable. MIL-STD-187-XXX standards provide uniform guidance for the design of the evolving and future Defense Information System. Providing this guidance as early as possible will minimize ineffective designs and costly interoperability problems at later stages of implementation without hindering system requirements and efficiency. It will also help to ensure utilization of appropriate advances in technology.