Photographs of some of our work

This is part of a head end that provided five off-air analogue channels, six off-air DTT muxes, and 21 in-house channels. The items you see here are the 21 VSB modulators and the channel filter levellers that handle their outputs. Filters were used rather than the manufacturer’s recommended method of using ‘U’ links because the large number of channels and general standard of the installation needed the modulators’ (already very slight) out-of-channel noise to be eliminated as far as possible.

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