Sec. 74.938  Transmission standards.

    The width of an ITFS channel is 6 MHz. ITFS transmitters must be 
type accepted by the Commission for the particular visual and aural 
signals that will be employed in actual operation. Either the 
manufacturer or the licensee must obtain transmitter type acceptance for 
the transmitter by filing a application for type acceptance with 
appropriate information concerning the signal waveforms and 
measurements.

[ 28 FR 13731 , Dec. 14, 1963, as amended at  49 FR 32596 , Aug. 15, 1984; 
 55 FR 46014 , Oct. 31, 1990]