Frequency management engineering principles VHF/UHF/SHF communication links
Series: Order -- 6050.17 B
Publisher: Dept. of Transportation, Federal Aviation Administration
Published: 1981
Place of publication: [Washington, D.C.?]
Language: eng
Number of pages: 87
Subjects: Radio frequency; Air traffic control -- United States -- Communication systems
Other titles: Frequency management engineering principles V.H.F./U.H.F./S.H.F. communication link
Notes: Cover title

"May 13, 1981."