| Satellite Channel Router |
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| CATEGORIES ABOUT SATELLITE CHANNEL ROUTER | |
| broadcasting | |
| television technology | |
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OPERATIONS The principle of working follows: each Subscriber has a dedicated user band, whose Bandwidth is approximately the same of a Transponder . If a subscriber requires a particular transponder (''eg.'' 1550MHz on vertical-low band), a Mixer converts it to the correct user band center frequency. The converted transponders of various users are then combined, and downcasted towards the set-top boxes. Then, the signals are split again to reach every user, for example by using a power divider. The set-top box requests a channel via a DiSEqC -compliant command. Like a traditional multiswitch, a SCR needs to be fed with four cables carrying the four bands provided by a Satellite . The SCR is useful if used with dual-tuner systems, as PVR s (Personal Video Recorders). |
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