Sec. 74.736  Emissions and bandwidth.

    (a) The license of a low power TV, TV translator, or TV booster 
station authorizes the transmission of the visual signal by amplitude 
modulation (A5) and the accompanying aural signal by frequency 
modulation (F3).
    (b) Standard width television channels will be assigned and the 
transmitting apparatus shall be operated so as to limit spurious 
emissions to the lowest practicable value. Any emissions including 
intermodulation products and radio frequency harmonics which are not 
essential for the transmission of the desired picture and sound 
information shall be considered to be spurious emissions.
    (c) Any emissions appearing on frequencies more than 3 MHz above or 
below the upper and lower edges, respectively, of the assigned channel 
shall be attenuated no less than:
    (1) 30 dB for transmitters rated at no more than 1 watt power 
output.
    (2) 50 dB for transmitters rated at more than 1 watt power output.
    (3) 60 dB for transmitters rated at more than 100 watts power 
output.
    (d) Greater attenuation than that specified in paragraph (c) of this 
section may be required if interference results from emissions outside 
the assigned channel.

[ 28 FR 13722 , Dec. 14, 1963, as amended at  33 FR 8677 , June 13, 1968;  36 FR 19592 , Oct. 8, 1971;  47 FR 21500 , May 18, 1982;  52 FR 31404 , Aug. 20, 
1987]