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  2. General Mobile Radio Service - Wikipedia

    en.wikipedia.org/wiki/General_Mobile_Radio_Service

    (2) Shared FRS and GMRS simplex; GMRS repeater output. (3) GMRS repeater input. The output frequency of this repeater input is the input frequency minus 5 MHz. (4) FRS transmissions are limited to bandwidth of 11 kHz with a transmitter deviation of +/- 2.5 kHz. Channels are on 12.5 kHz centers. (5) GMRS transmissions may have a bandwidth of 16 ...

  3. Personal radio service - Wikipedia

    en.wikipedia.org/wiki/Personal_radio_service

    While radios designed for the Taiwan market have FRS/GMRS frequencies as part of their channel plan, it is still technically illegal to use equipment designed for the Taiwan market in the United States. FRS, 14 channels, 12.5 kHz spacing: 467.5125 MHz; 467.5250 MHz; 467.5375 MHz; 467.5500 MHz – US GMRS Repeater Ch 15/23 Input

  4. Amateur radio repeater - Wikipedia

    en.wikipedia.org/wiki/Amateur_radio_repeater

    The duplexer is a device which prevents the repeater's high-power transmitter (on the output frequency) from drowning out the users' signal on the repeater receiver (on the input frequency). A diplexer allows two transmitters on different frequencies to use one antenna, and is common in installations where one repeater on 2 m and a second on ...

  5. Radio repeater - Wikipedia

    en.wikipedia.org/wiki/Radio_repeater

    In same-band repeaters, isolation between transmitter and receiver can be created by using a single antenna and a device called a duplexer. The device is a tuned filter connected to the antenna. In this example, consider a type of device called a band-pass duplexer. It allows, or passes, a band, (or a narrow range,) of frequencies.

  6. List of radio stations in the Philippines - Wikipedia

    en.wikipedia.org/wiki/List_of_radio_stations_in...

    AMFM Philippines Easy listening, adult contemporary International Crossover Online Mareco Broadcasting Network: smooth jazz: 32 International Fresh FM Philippines Dan Cabisada contemporary hits: Manila Green Giant FM: De La Salle University: college radio, contemporary hits, indie: 32 International IDMZ Sayaw Pinoy dance music, remixed music ...

  7. List of radio stations in Metro Manila - Wikipedia

    en.wikipedia.org/wiki/List_of_radio_stations_in...

    See also: List of radio stations in the Philippines § Stations by region or province The following is a list of NTC -licensed radio stations in Metro Manila, a region of the Philippines, current as of 2024. The tables can be sorted by call sign, branding, frequency, location, owner, languages and radio format. Also included below are defunct radio stations and Internet-only stations. Radio ...

  8. Duplex (telecommunications) - Wikipedia

    en.wikipedia.org/wiki/Duplex_(telecommunications)

    A duplex communication system is a point-to-point system composed of two or more connected parties or devices that can communicate with one another in both directions. Duplex systems are employed in many communications networks, either to allow for simultaneous communication in both directions between two connected parties or to provide a reverse path for the monitoring and remote adjustment ...

  9. Repeater - Wikipedia

    en.wikipedia.org/wiki/Repeater

    A radio repeater usually consists of a radio receiver connected to a radio transmitter. The received signal is amplified and retransmitted, often on another frequency, to provide coverage beyond the obstruction. Usage of a duplexer can allow the repeater to use one antenna for both receive and transmit at the same time.

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