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2. Antenna (radio) - Wikipedia

   en.wikipedia.org/wiki/Antenna_(radio)

   In transmission, a radio transmitter supplies an electric current to the antenna's terminals, and the antenna radiates the energy from the current as electromagnetic waves (radio waves). In reception , an antenna intercepts some of the power of a radio wave in order to produce an electric current at its terminals, that is applied to a receiver ...

3. Antenna types - Wikipedia

   en.wikipedia.org/wiki/Antenna_types

   Antennas can be classified in various ways, and various writers organize the different aspects of antennas with different priorities, depending on whether their text is most focused on specific frequency bands; or antenna size, construction, and placement feasibility; or explicating principles of radio theory and engineering that underlie ...

4. FM broadcast band - Wikipedia

   en.wikipedia.org/wiki/FM_broadcast_band

   Several low-power television stations colloquially known as "Franken-FMs" operated primarily as radio stations on channel 6, using the 87.7 MHz audio carrier of that channel as a radio station receivable on most FM receivers configured to cover the whole of Band II, from 2009 to 2021; since then, a reduced number have received special temporary ...

5. Indiana antenna company, whose CEO climbs the Empire ... - AOL

   www.aol.com/indiana-antenna-company-whose-ceo...

   It’s the nation’s No. 1 producer of antennas for FM radio station and ranks No. 2 in producing antennas for TV broadcasters. Its antennas stand atop some of the tallest buildings and towers ...

6. FM broadcasting - Wikipedia

   en.wikipedia.org/wiki/FM_broadcasting

   From the second half of the 1970s onwards, FM radio stations began to become popular in Brazil, causing AM radio to gradually lose popularity. [28] In 2021, the Brazilian Ministry of Communications expanded the FM radio band from 87.5-108.0 MHz to 76.1-108.0 MHz to enable the migration of AM radio stations in Brazilian capitals and large cities.

7. Frequency modulation - Wikipedia

   en.wikipedia.org/wiki/Frequency_modulation

   A wideband FM signal can also be used to carry a stereo signal; this is done with multiplexing and demultiplexing before and after the FM process. The FM modulation and demodulation process is identical in stereo and monaural processes. FM is commonly used at VHF radio frequencies for high-fidelity broadcasts of music and speech. In broadcast ...