July 2013
Beginner
224 pages
5h 46m
English
Content preview from Introduction to SNG and ENG Microwave
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DSNG uplink types
An SNG uplink system consists of the following primary component parts:
• antenna with mounting support
• high power amplifier(s) (HPA)
• upconverter
• modulator
• signal monitoring
• baseband signal processing.
The physical transmission components of an uplink are typically referred to collectively as the chain or thread. A chain typically consists of a single transmission path that has one of each of the primary transmission components – digital encoder, modulator, upconverter and an HPA.
An SNG system may have some or all of its constituent components duplicated – two or more chains can be combined to feed via a single antenna, using a phase-combiner.
This may be to give a degree of redundancy and provide immediate ...
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