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2003_Ordinances
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2003_Ordinances
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(iii) A maximum level such that signal degradation due to . <br />overload in the Subscriber's receiver or terminal does not occur. <br />(5) The rms voltage of the aural signal shall be maintained between 10 <br />and 17 decibels below the associated visual signal level, and shall be maintained <br />at levels not to cause interference to the upper adjacent Channel. This <br />requirement must be met both at the Subscriber terminal and at the output of the <br />modulating and processing equipment (generally the headend). <br />(6) The amplitude characteristic shall be within a range of t decibels <br />from 0.75 MHz to 5.0 MHz above the lower boundary frequency of the cable <br />television Channel, referenced to the average of the highest and lowest <br />amplitudes within these frequency boundaries. <br />(7) The ratio of RF visual signal level to System noise shall be as <br />follows: <br />(i) From [90 days following publication in the Federal Register <br />to 1 year thereafter], shall not be less than 36 decibels. <br />(ii) From [1 year and 90 days following publication in the <br />Federal Register to 2 years thereafter], shall not be less thdn 40 decibels. <br />(iii) As of [3 years and 90 days following publication in the • <br />Federal Register], shall not be less than 43 decibels. <br />(iv) For Gass I cable television channels, the requirements of <br />paragraphs (a)(7)(i), (a)(7)(ii), and (a)(7)(iii) of this section are applicable <br />only to: <br />(a) Each signal which is delivered by a Cable System to <br />Subscribers within the predicted Grade B contour for that signal; <br />(b) Each signal which is first picked up within its predicted <br />Grade B contour; <br />(c) Each signal that is first received by the Cable System <br />by direct video feed from a TV broadcast station, a low power TV <br />station, or a TV translator station. <br />(8) The ratio of visual signal level to the rms amplitude of any coherent <br />disturbances such as intermodulation products, second and third order <br />distortions, or discrete -frequency interfering signals not operating on proper <br />offset assignments shall be as follows: <br />(i) The ratio of visual signal level to coherent disturbances shall <br />not be less than 51 decibels for noncoherent Channel cable television • <br />systems, when measured with modulated carriers and time averaged; and <br />B-2 <br />
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