Spectrum required for HF broadcasting
By: James Washburn ... [et al.].
Contributors: Washburn, J. S.; United States. National Telecommunications and Information Administration.
Series: NTIA report -- 90-268.; NTIA report -- 90-268.
Publisher: U.S. Dept. of Commerce, National Telecommunications and Information Administration; For sale by the National Technical Information Service
Published: 1990
Place of publication: [Boulder, CO]; [Springfield, VA
Language: eng
Format: Microform
Number of pages: 91
Subjects: Shortwave radio -- Transmitters and transmission.
Notes: "October 1990."

Includes bibliographical references (p. 33).

Microfiche. Washington, D.C. : U.S. G.P.O., 1991. 2 microfiches : negative ; 11 x 15 cm.