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Wireless Camera Systems Overview

Wireless Camera Systems – Overview

Wireless cameras are now an essential component of television production from live news to live sport.

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Since their first introduction about ten years ago, digital wireless camera systems have revolutionised many areas of television production. While analogue wireless links still provide solid point-to-point connections, digital wireless camera systems offer a multitude of possibilities ranging from simple shoulder camera applications to complex systems including multiplexers, relay units and cellular receive networks with a huge number of antennas.

A big advantage of digital wireless camera systems is that they do not require a line-of-sight connection between the transmitter and the receiver. Signals reflected from concrete walls or windows can be used to improve the signal quality. Scalable error correction algorithms and modulation settings ensure maximum picture quality and ruggedness even under challenging conditions.

Latest wireless camera systems are able to handle analogue and digital standard and high definition video signals as well as analogue, digital or embedded audio. Additional racking equipment allows operators to control many camera functions wirelessly, so wireless cameras can easily be used alongside regular wired cameras.

The average coverage for a standard wireless camera system is about 1 km, although ranges vary depending on topography and surrounding buildings. Using high power amplifiers, directional antennas, helicopter relays or multi receive site networks the covered area can be expanded to over 100 km.

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