radio signal
Noun: A radio signal is a radio wave that is specifically generated, modulated, and transmitted to carry information, such as sound, data, or control commands, from one point to another. It is the fundamental medium for wireless communication.
A "radio signal" refers to the transmitted electromagnetic radiation itself. It is a countable noun. - The strength of a radio signal determines the quality of reception. - The spacecraft sent a weak radio signal back to Earth. - They are trying to detect radio signals from distant stars.
- The emergency beacon emits a continuous radio signal for rescuers to locate.
- Modern smartphones constantly search for cellular radio signals.
- Interference from the storm disrupted the radio signal.
- Signal-to-noise ratio: A technical measure comparing the strength of a desired radio signal to the strength of background noise.
- A high signal-to-noise ratio is crucial for clear audio reception.
- To broadcast a signal: To transmit a radio signal over a wide area.
- The station broadcasts its signal across the entire region.
- Radio wave (n): The broader category of electromagnetic radiation within the radio frequency spectrum. A radio signal is a radio wave encoded with information.
- Transmission (n): The act or process of sending out a radio signal.
- Reception (n): The act or process of receiving a radio signal.
- Broadcast signal (n): A radio signal intended for public reception.
- Transmission
- Broadcast (when referring to the signal content)
- Airwave (informal, often plural)
- To pick up a signal: To successfully receive a radio signal.
- The old radio can still pick up signals from the local AM station.
- To lose the signal: To no longer receive a radio signal.
- We lost the signal when we entered the tunnel.
- Signal strength: The power or intensity of a received radio signal.
- The signal strength is shown as five bars on the phone.
The term "radio signal" explicitly denotes a wave that is used for communication. This distinguishes it from ambient radio waves, which may occur naturally. It is the core component of technologies like AM/FM radio, television, cell phones, Wi-Fi, and satellite communications.
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a radio wave used to transmit and receive messages
