July 2013
Beginner
224 pages
5h 46m
English
Content preview from Introduction to SNG and ENG MicrowaveBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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DSNG processing equipment
In our look at the various types of equipment in the uplink, we need to give an idea of the sizes of the units. Equipment is typically not in stand-alone cases, but designed to be screwed into equipment racks or bays.
There is an internationally recognized way of measuring the height and width of equipment – the Rack Unit (RU). The rack width is defined as 19 inches (and hence ‘half rack’ width is, as it suggests, 9% inches wide), and 1 RU is equal to 1.75 inches (44.5 mm) high (incidentally there is no standard for the depth of equipment).
Encoders
As we have seen, a digital compression encoder essentially converts full bandwidth (uncompressed) video and audio to a compressed digital signal, and then the output is ...
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