radio-frequency
Noun (countable and uncountable): - Electromagnetic wave frequency: "Radio-frequency" (often abbreviated as RF) refers to any frequency of electromagnetic radiation within the range of about 3 kilohertz (kHz) to 300 gigahertz (GHz), used for wireless communication, broadcasting, radar, and other technologies. - Example: Radio-frequency signals are used to transmit television and radio broadcasts.
- (The device uses a particular frequency of electromagnetic waves.)
- (Tags that use radio waves for identification.)
- (A medical procedure employing high-frequency radio waves.)
- "radio-frequency interference" (RFI): disruption of a radio signal caused by unwanted electromagnetic emissions.
- Poor shielding can cause radio-frequency interference, degrading the performance of nearby electronic devices. (Unwanted signals disrupt normal operation.)
- "radio-frequency spectrum": the complete range of radio frequencies used for communication.
- Governments regulate the use of the radio-frequency spectrum to prevent conflicts between different users. (The entire band of frequencies allocated for wireless services.)
- Radio-frequency (adj): describing a device or phenomenon that operates at or relates to such frequencies.
- The radio-frequency amplifier boosts weak signals. (An amplifier designed for RF signals.)
- Radio-frequency (n, as a compound modifier): used in terms like "radio-frequency circuit" or "radio-frequency engineering."
- She specialises in radio-frequency circuit design. (Designing circuits that handle high-frequency signals.)
- RF: the standard abbreviation for radio-frequency.
- The RF module sends data wirelessly. (The radio-frequency module.)
- High-frequency (HF): a specific subrange of radio frequencies (3–30 MHz), though not synonymous with the entire spectrum.
- High-frequency waves can travel long distances by reflecting off the ionosphere. (A subset of radio frequencies.)
- "On the same wavelength": metaphorical idiom meaning to share similar ideas or understanding, not directly related to radio-frequency but derived from radio communication.
- We are on the same wavelength about the project. (We think alike.)
- Tune into: to adjust a receiver to a desired radio-frequency.
- He tuned into the local news station on his radio. (He set the radio to receive that frequency.)
The term "radio-frequency" is often used as an adjective (e.g., "radio-frequency signal") or as a noun (e.g., "the device uses a radio-frequency of 2.4 GHz"). It is distinct from "frequency" in general, which can refer to any periodic event (e.g., sound waves, electrical cycles), while "radio-frequency" specifically denotes electromagnetic waves used in wireless technology.