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Introduction to SNG and ENG Microwave by Jonathan Higgins

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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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