47 C.F.R. § 73.61 AM directional antenna field strength measurements.
Title 47 - Telecommunication
(a) Each AM station using a directional antenna must make field strength measurements at the monitoring point locations specified in the instrument of authorization, as often as necessary to ensure that the field at those points does not exceed the values specified in the station authorization. Additionally, stations not having an approved sampling system must make the measurements once each calendar quarter at intervals not exceeding 120 days. The provision of this paragraph supersedes any schedule specified on a station license issued prior to January 1, 1986. The results of the measurements are to be entered into the station log pursuant to the provisions of §73.1820. (b) Partial proof of performance measurements using the procedures described in §73.154 must be made whenever the licensee has reason to believe that the radiated field may be exceeding the limits for which the station was most recently authorized to operate. (c) A station may be directed to make a partial proof of performance by the FCC whenever there is an indication that the antenna is not operating as authorized. [50 FR 47054, Nov. 14, 1985]
Title 47: Telecommunication
PART 73—RADIO BROADCAST SERVICES
Subpart A—AM Broadcast Stations
§ 73.61 AM directional antenna field strength measurements.
