Frequency/distance sharing criteria between non-directional beacons (NDB) and travelers information stations (TIS) in the 525-535 kHz band
By: W.E. Frazier [and] D.C. Kelly.
Contributors: Kelly, D. C.; United States. National Telecommunications and Information Administration.
Series: NTIA technical memorandum series -- NTIA-TM-78-1.
Publisher: U.S. Dept. of Commerce, National Telecommunications and Information Administration
Published: 1978
Place of publication: [Washington, D.C.]
Language: eng
Number of pages: 37
Subjects: Aeronautical radio stations -- United States.; Radio direction finders.; Radio beacons.
Notes: "May 1978."

Bibliography: p. 36.