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[Code of Federal Regulations]
[Title 47, Volume 2]
[Revised as of October 1, 2007]
From the U.S. Government Printing Office via GPO Access
[CITE: 47CFR74.1201]

[Page 501-502]
 
                       TITLE 47--TELECOMMUNICATION
 
        CHAPTER I--FEDERAL COMMUNICATIONS COMMISSION (CONTINUED)
 
PART 74_EXPERIMENTAL RADIO, AUXILIARY, SPECIAL BROADCAST AND OTHER PROGRAM 
 
  Subpart L_FM Broadcast Translator Stations and FM Broadcast Booster 
                                Stations
 
Sec.  74.1201  Definitions.

    Source: 35 FR 15388, Oct. 2, 1970, unless otherwise noted.


    (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 Sec.  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

[[Page 502]]

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]