scope:

This specification states the conditions and requirements for providing narrow band Digital Data Communications System (DACOM) Service for use in the Rational Airspace System. When used in conjunction with narrow band, voice-bandwidth communications channels, a leased Service will provide for transmission of data from Government equipment at a radar/beacon site to FAA equipment at Air Route Traffic Control Centers (ARTCC) and to Air Defense Command (ADC) systems, interchange of air traffic control data between ARTCC's, or both. Supplements to this specification will furnish specific information as to the site locations, option requirements, and other necessary information.

intended Use: