摘要: |
Data link services are added to the National Airspace System to reduce frequency congestion, aircrew workload,enhance safety and reduce confusion. In an effort to protect these benefits, the agency has adopted the position that there shall be no test call signs assigned or used by the users of data link. / Availability Note: Product reproduced from digital image. Order this product from NTIS by: phone at 1-800-553-NTIS (U.S. customers); (703)605-6000 (other countries); fax at (703)605-6900; and email at orders@ntis.gov. NTIS is located at 5285 Port Royal Road, Springfield, VA, 22161, USA. |