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  1. Radio frequency - Wikipedia

    Radio frequency (RF) is the oscillation rate of an alternating electric current or voltage or of a magnetic, electric or electromagnetic field or mechanical system in the frequency [1] range …

  2. Lake County, Indiana (IN) Scanner Frequencies and Radio Frequency

    Oct 25, 2025 · Utilized by most public safety agencies and departments in Lake County. VHF MABAS frequencies are primarily used by Illinois agencies, but may be used for cross-state …

  3. What is radio frequency (RF, rf)? - Definition from WhatIs.com

    Feb 25, 2021 · What is radio frequency? Radio frequency (RF) is a measurement representing the oscillation rate of electromagnetic radiation spectrum, or electromagnetic radio waves, from …

  4. Radio Waves or Radio-Frequency Radiation - Science Notes and …

    Jun 18, 2025 · Radio waves, also called radio-frequency (RF) radiation, are the lowest-frequency, longest-wavelength portion of the electromagnetic (EM) spectrum.

  5. How Radio Frequency Works and Why It Matters - Smith and Fisher

    Oct 29, 2024 · Radio frequency refers to a range of electromagnetic waves that fall within the spectrum of 3 kHz to 300 GHz. These waves are invisible but can carry energy through the air …

  6. Radio Frequency 101: Definition, Types, Uses, & More

    Aug 2, 2025 · Radio frequency (RF) is the invisible force powering wireless tech—used in radios, phones, Wi-Fi, RFID, medical tools, and more. It transmits data via electromagnetic waves, …

  7. Understanding Radio Frequency: Principles and Applications

    Radio frequency refers to the range of electromagnetic waves used in various communication technologies. Typically, this range includes frequencies from 3 kHz to 300 GHz.

  8. RADIO FREQUENCY Definition & Meaning - Merriam-Webster

    Oct 26, 2025 · : any of the electromagnetic wave frequencies between about 3 kilohertz and 300 gigahertz that are used especially in radio and television transmission and in radar

  9. What Is Radio Frequency (RF)? | Definition, Applications

    Jun 17, 2025 · Radio frequency (RF) is the abbreviation of Radio Frequency, which means the electromagnetic frequency that can be radiated into space, with a frequency range from …

  10. Understanding Radio Waves and their Frequencies - RF ENGINEER …

    Frequency is a fundamental aspect of radio wave transmission, playing a crucial role in the way signals are sent and received. In simple terms, frequency refers to the number of oscillations …