Define the following as applied to radio receivers.
Noise figure
Adjacent channel radio
Band width
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Google Gemini AI
5 days ago
Noise figure: The noise figure of a radio receiver is a measure of its ability to amplify a signal without adding its own noise. It is expressed in decibels (dB) and is defined as the ratio of the input signal-to-noise ratio to the output signal-to-noise ratio. A lower noise figure indicates a better receiver.
Adjacent channel radio: An adjacent channel radio is a radio receiver that can receive signals from two or more adjacent channels simultaneously. This is useful for monitoring multiple channels at once, such as for emergency communications.
Bandwidth: The bandwidth of a radio receiver is the range of frequencies that it can receive. It is typically expressed in kilohertz (kHz) or megahertz (MHz). A wider bandwidth allows the receiver to receive a wider range of signals, but it also makes the receiver more susceptible to interference from other signals.