Cf

s rms to peak-to-peak luminance signal conversion factor

For many satellite systems, without frequency reuse, a 500-MHz assigned bandwidth is broken down into twelve 36-MHz segments.* Each segment is then assigned to a transponder. For video transmission either a half or full transponder is assigned.

Example 13. A video link is relayed through a 36-MHz (full transponder) transponder bent-pipe satellite, where the peak composite deviation is 11 MHz and the C/N is 14.6 dB. What is the weighted signal-to-noise ratio? Assume NTSC standards.

*Many new systems coming on-line use wider bandwidths.

Using equation (6.36), we find

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