Types of Radio Receivers
Various types of radio receivers may include:
- Consumer audio and high fidelity audio receivers and AV receivers used by home stereo listeners and audio and home theatre system enthusiasts as well as audiophiles.
- Communications receivers, used as a component of a radio communication link, characterized by high stability and reliability of performance.
- Simple crystal radio receivers (also known as a crystal set) which operate using the power received from radio waves.
- Satellite television receivers, used to receive television programming from communication satellites in geosynchronous orbit.
- 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.
- Internet radio device
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“The wider the range of possibilities we offer children, the more intense will be their motivations and the richer their experiences. We must widen the range of topics and goals, the types of situations we offer and their degree of structure, the kinds and combinations of resources and materials, and the possible interactions with things, peers, and adults.”
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