Cable Television Technology |
Contents
Cable television | 1 |
The aerial system a whole range of different systems | 2 |
The head | 3 |
Copyright | |
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Common terms and phrases
aerial amplitude attenuation audio automatic gain control band band-pass filter bandwidth broadcasting cable network cable operators cable service cable systems cable television cabled distribution systems carrier carrier-to-noise ratio carry CATV channels coaxial cable component convertor cross-modulation customers D-MAC dBmV Demodulator descrambling directional coupler distortion duobinary effect encryption engineers ensure equaliser equipment eye-height feeder fibre fibre-optic filter frequency gain head end input signal insertion installation INTELSAT interactive services intermodulation laser length light Mbit/s modulation multiplexed analogue component multiplexing noise figure number of amplifiers off-air optical output possible practical problems programmes pulse radio receiver reflected signal refractive index return loss satellite scrambling signal levels signal-to-noise ratio spectrum splitters standard subscribers switching centre techniques teletext television signals transmission transmitter trunk two-way typical upstream usually various viewers voltage wavelength