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  2. Radio frequency - Wikipedia

    en.wikipedia.org/wiki/Radio_frequency

    Radio frequency. 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 from around 20 kHz to around 300 GHz. This is roughly between the upper limit of audio frequencies and the lower limit of infrared ...

  3. List of video connectors - Wikipedia

    en.wikipedia.org/wiki/List_of_video_connectors

    RF connectors ( radio frequency signals). Generally use coaxial cable types such as RG-6 and RG-59 (except for twin-lead). Belling-Lee/IEC 169-2 connector. TV aerial plug (a.k.a. antenna plug) Television antenna connection for most video devices outside North America.

  4. Ring of Honor - Wikipedia

    en.wikipedia.org/wiki/Ring_of_Honor

    Ring of Honor (ROH) is an American professional wrestling promotion based in Jacksonville, Florida.The promotion was founded by Rob Feinstein on February 23, 2002, and was operated by Cary Silkin from 2004 until 2011; when the promotion was sold to the Sinclair Broadcast Group.

  5. Radio-frequency identification - Wikipedia

    en.wikipedia.org/wiki/Radio-frequency_identification

    Radio-frequency identification ( RFID) uses electromagnetic fields to automatically identify and track tags attached to objects. An RFID system consists of a tiny radio transponder called a tag, a radio receiver, and a transmitter. When triggered by an electromagnetic interrogation pulse from a nearby RFID reader device, the tag transmits ...

  6. RF modulator - Wikipedia

    en.wikipedia.org/wiki/RF_modulator

    RF modulator. An RF modulator ( radio frequency modulator) is an electronic device used to convert signals from devices such as media players, VCRs and game consoles to a format that can be handled by a device designed to receive a modulated RF input, such as a radio or television receiver. Its input is a baseband signal, which is used to ...

  7. Radio-frequency skin tightening - Wikipedia

    en.wikipedia.org/wiki/Radio-frequency_skin...

    Radio-frequency skin tightening. Radio-frequency skin tightening is an aesthetic technique that uses radio frequency (RF) energy to heat skin with the purpose of stimulating cutaneous collagen, elastin and hyaluronic acid production in order to reduce the appearance of fine lines and loose skin. [1] [2] The technique induces tissue remodeling ...

  8. Radio-frequency engineering - Wikipedia

    en.wikipedia.org/wiki/Radio-frequency_engineering

    t. e. Radio-frequency (RF) engineering is a subset of electrical engineering involving the application of transmission line, waveguide, antenna, radar, and electromagnetic field principles to the design and application of devices that produce or use signals within the radio band, the frequency range of about 20 kHz up to 300 GHz. [1] [2] [3]

  9. List of RF connector types - Wikipedia

    en.wikipedia.org/wiki/List_of_RF_connector_types

    DIN 1.6/5.6 (DIN 47295), a 75 Ω connector, used for similar purposes as DIN 1.0/2.3. FME connector. G-type connector. HD-BNC connector. HSD connector, circular connector (not coaxial) used in the automotive industry. LEMO 00 connector, a proprietary push-pull 50 Ω coaxial connector. MCX connector.