Monday 21 March 2011

Types of radio receivers

Various types of radio receivers may include:
  • Simple crystal radio receivers (also known as a crystal set) which operate using the power received from radio waves.
  • Specialized-use receivers such as telemetry receivers that allow the remote measurement and reporting of information.
  • Measuring receivers (also: measurement receivers) are calibrated laboratory-grade devices that are used to measure the signal strength of broadcasting stations, the electromagnetic interference radiation emitted by electrical products, as well as to calibrate RF attenuators and signal generators.
  • Scanners are specialized receivers that can automatically scan two or more discrete frequencies, stopping when they find a signal on one of them and then continuing to scan other frequencies when the initial transmission ceases. They are mainly used for monitoring VHF and UHF radio systems.

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