Goto Section: 21.904 | 21.906 | Table of Contents

FCC 21.905
Revised as of
Goto Year:1996 | 1998
Sec. 21.905  Emissions and bandwidth.

    (a) A station transmitting a television signal shall not exceed a 
bandwidth of 6 MHz (for both visual signal and accompanying aural 
signal), and will normally employ vestigial sideband, amplitude 
modulation (C3F) for the visual signal, and frequency modulation (F3E) 
or (G3E) for the accompanying aural signal.
    (b) For purposes other than standard television transmission, 
different types of emissions may be authorized if the applicant 
describes fully the modulation and bandwidth desired, and demonstrates 
that the bandwidth desired is no wider than needed to provide the 
intended service. However, in no event shall the necessary or occupied 
bandwidth, whichever is greater, exceed 6 MHz.
    (c) Any licensee of a station in the 2150-2162 MHz or 2596-2644 MHz, 
2650-2656 MHz, 2662-2668 MHz, or 2674-2680 MHz frequency bands, after 
notice and opportunity for hearing, may be required to use the frequency 
offset technique to avoid or to minimize harmful interference to another 
licensed station in the 2150-2162 MHz and 2596-2544 MHz, 2650-2656 MHz, 
2662-2668 MHz, and 2674-2680 MHz frequency bands or to make other 
changes as provided in Secs. 21.100, 21.107, 21.900, 21.901, 21.902, 
21.904, 21.905(a), 21.905(b), 21.906, 21.907, and 21.908 of this part.
[ 44 FR 60534 , Oct. 19, 1979, as amended at  49 FR 48700 , Dec. 14, 1984; 
 55 FR 46011 , Oct. 31, 1990;  56 FR 57818 , Nov. 14, 1991]


Goto Section: 21.904 | 21.906

Goto Year: 1996 | 1998
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