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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