47 C.F.R. § 74.1201 Definitions.
Title 47 - Telecommunication
(a) FM translator. A station in the broadcasting service operated for the purpose of retransmitting the signals of an FM radio broadcast station or another FM broadcast translator station without significantly altering any characteristics of the incoming signal other than its frequency and amplitude, in order to provide FM broadcast service to the general public. (b) Commercial FM translator. An FM broadcast translator station which rebroadcasts the signals of a commercial FM radio broadcast station. (c) Noncommercial FM translator. An FM broadcast translator station which rebroadcasts the signals of a noncommercial educational FM radio broadcast station. (d) Primary station. The FM radio broadcast station radiating the signals which are retransmitted by an FM broadcast translator station or an FM broadcast booster station. (e) FM radio broadcast station. When used in this Subpart L, the term FM broadcast station or FM radio broadcast station refers to commercial and noncommercial educational FM radio broadcast stations as defined in §2.1 of this chapter, unless the context indicates otherwise. (f) FM broadcast booster station. A station in the broadcasting service operated for the sole purpose of retransmitting the signals of an FM radio broadcast station, by amplifying and reradiating such signals, without significantly altering any characteristic of the incoming signal other than its amplitude. (g) Translator coverage contour. The coverage contour for an FM translator providing “fill-in” service is congruent with its parent station: For a fill-in translator for a commercial Class B station it is the predicted 0.5 mV/m field strength contour; for a fill-in translator for a commercial Cass B1 station it is the predicted 0.7 mV/m field strength contour; and for a fill-in translator for all other classes of commercial stations as well as all noncommercial educational stations it is the predicted 1 mV/m field strength contour. A fill-in FM translator's coverage contour must be contained within the primary station's coverage contour. The protected contour for an FM translator station is its predicted 1 mV/m contour. (h) Fill-in area. The area where the coverage contour of an FM translator or booster station is within the protected contour of the associated primary station (i.e., predicted 0.5 mV/m contour for commercial Class B stations, predicted 0.7 mV/m contour for commercial Class B1 stations, and predicted 1 mV/m contour for all other classes of stations). (i) Other area. The area where the coverage contour of an FM translator station extends beyond the protected contour of the primary station (i.e., predicted 0.5 mV/m contour for commercial Class B stations, predicted 0.7 mV/m contour for commercial Class B1 stations, and predicted 1 mV/m contour for all other classes of stations). [35 FR 15388, Oct. 2, 1970, as amended at 45 FR 37842, June 5, 1980; 52 FR 31405, Aug. 20, 1987; 55 FR 50693, Dec. 10, 1990]
Title 47: Telecommunication
PART 74—EXPERIMENTAL RADIO, AUXILIARY, SPECIAL BROADCAST AND OTHER PROGRAM DISTRIBUTIONAL SERVICES
Subpart L—FM Broadcast Translator Stations and FM Broadcast Booster Stations
§ 74.1201 Definitions.
