January 1974 | NTIA Technical Memo OT TM 74 169

Citizens band Class D antenna height con­siderations

Leslie A. Berry

Abstract: This memorandum analyzes the effects of changing the present antenna height restrictions on Class D Citizen's Band operations. The ground wave coverage and potential sky wave interference are compared for monopoles and beam antennas at 20, 40, and 60 feet. The calculations show that a monopole at 60 feet provides slightly more ground wave coverage and significantly less potential sky wave interference than a beam antenna at 20 feet.

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Disclaimer: Certain commercial equipment, components, and software may be identified in this report to specify adequately the technical aspects of the reported results. In no case does such identification imply recommendation or endorsement by the National Telecommunications and Information Administration, nor does it imply that the equipment or software identified is necessarily the best available for the particular application or uses.

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