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A scanner (also referred to as a radio scanner) is a radio receiver that can automatically tune, or scan, two or more discrete frequencies, stopping when it finds a signal on one of them and then continuing to scan other frequencies when the initial transmission ceases. The term scanner generally refers to a communications receiver that is ...
Pages in category "Lists of radio stations by frequency" The following 200 pages are in this category, out of approximately 336 total. This list may not reflect recent changes .
In the Americas (defined as International Telecommunication Union (ITU) region 2), the FM broadcast band consists of 101 channels, each 200 kHz wide, in the frequency range from 87.8 to 108.0 MHz, with "center frequencies" running from 87.9 MHz to 107.9 MHz. For most purposes an FM station is associated with its center frequency.
DAB+: Cambridge 105, Radio Caroline, Caroline Flashback, Cosoro Radio, News Radio UK, LASER558, The Music Machine 1, The Music Machine 2, Resonance Extra, Select Radio, Skylab Radio, Slack City Radio, Solar Radio, Style Radio, Weather 24/7 Radio and Zack FM. Leeds. Leeds Digital Media Ltd.
Maryland, DC, Delaware Broadcasters Association. W3EAX Amateur Radio Association, University of Maryland (est. circa 1934) Mid-Atlantic Antique Radio Club. Images. [edit] Radio inventor James Harris Rogers at his lab in Prince George's County, Maryland, circa 1910s. WJSV radio transmitter, Wheaton, Maryland, circa 1940s. v. t.
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 ...
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 ...
Local oscillators are used in the superheterodyne receiver, the most common type of radio receiver circuit. They are also used in many other communications circuits such as modems, cable television set top boxes, frequency division multiplexing systems used in telephone trunklines, microwave relay systems, telemetry systems, atomic clocks, radio telescopes, and military electronic ...