FCC Technical Standards and Baseband SIN (1994)
By J. Samborski and T. M. Straus, Hughes Aircraft of Canada Limited
It is well known that SIN depends directly on CIN, but its dependence on other parameters affecting picture quality such as CICTB has not previously been fully explored. Since a measurement of C/N is in any case also required, it is suggested that a simultaneous measurement of SIN will yield a worst case number for C/CTB. This technique would not only satisfy the letter of the FCC requirement, but also, since SIN is an excellent indicator of overall picture quality, assure the cable operator that he is supplying a quality product to his customers without the onerous need of service interruption.
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