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Analogue Nagravision (Syster) encoder
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<blockquote data-quote="homercartman" data-source="post: 1079082" data-attributes="member: 414304"><p>[USER=410643]@fsphil[/USER]</p><p>I saw some literature mentioning the drawbacks of Cut'n'Rotate when used in terrestrial channels.</p><p>It is said that multipath propagation creates echoes and signal fades which, when combined with CnR, seem to generate awful visual effects such as random streaks of luminosity due to AGC + local, fast-paced static near cutpoint.</p><p>This is what BBC claimed in a quite serious document they published when they chose VideoCrypt-S for terrestrial broadcast.</p><p></p><p>Regarding Premiere box: Premiere was on satellite broadcast only, right?</p><p>Then the Premiere box was maybe targeted for satellite usage only, so it was also maybe ready for CnR.</p><p>Regarding Canal + FR box: assuming CnR was not an option for terrestrial broadcast, they may just have simply (soft?) disabled it.</p><p></p><p>By the way: is Premiere box also decoding Discret11?</p><p>If so, compared to Canal+ FR box, Premiere box would be a "lucky" one in which 3 descramblers (Line Delay, Line Shuffle, Cut'n Rotate) are all active. But I guess CnR is just a general case of Line Delay.</p></blockquote><p></p>
[QUOTE="homercartman, post: 1079082, member: 414304"] [USER=410643]@fsphil[/USER] I saw some literature mentioning the drawbacks of Cut'n'Rotate when used in terrestrial channels. It is said that multipath propagation creates echoes and signal fades which, when combined with CnR, seem to generate awful visual effects such as random streaks of luminosity due to AGC + local, fast-paced static near cutpoint. This is what BBC claimed in a quite serious document they published when they chose VideoCrypt-S for terrestrial broadcast. Regarding Premiere box: Premiere was on satellite broadcast only, right? Then the Premiere box was maybe targeted for satellite usage only, so it was also maybe ready for CnR. Regarding Canal + FR box: assuming CnR was not an option for terrestrial broadcast, they may just have simply (soft?) disabled it. By the way: is Premiere box also decoding Discret11? If so, compared to Canal+ FR box, Premiere box would be a "lucky" one in which 3 descramblers (Line Delay, Line Shuffle, Cut'n Rotate) are all active. But I guess CnR is just a general case of Line Delay. [/QUOTE]
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