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  2. PMR446 - Wikipedia

    en.wikipedia.org/wiki/PMR446

    PMR446 (Private Mobile Radio, 446 MHz) is a licence-exempt service in the UHF radio frequency band and is available for business and personal use in most countries throughout the European Union. [1] PMR446 is typically used for small-site, same-building and line of sight outdoor activities.

  3. MDC-1200 - Wikipedia

    en.wikipedia.org/wiki/MDC-1200

    Vertex Standard manufactures OEM add-on boards for their mobile and portable Land Mobile Radios that support MDC-1200 ANI (or PTT ID). Icom Incorporated includes built-in MDC-1200 features on some of their newer radios including the IC-F3021/4021 portables and IC-F1721/1821 mobiles, as does Kenwood Electronics .

  4. Amateur radio repeater - Wikipedia

    en.wikipedia.org/wiki/Amateur_radio_repeater

    Repeaters are found mainly in the VHF 6-meter (50–54 MHz), 2-meter (144–148 MHz), 1.25-meter band (1 1 ⁄ 4 meters) (220–225 MHz) and the UHF 70 centimeter (420–450 MHz) bands, but can be used on almost any frequency pair above 28 MHz.

  5. Radio repeater - Wikipedia

    en.wikipedia.org/wiki/Radio_repeater

    A radio repeater is a combination of a radio receiver and a radio transmitter that receives a signal and retransmits it, so that two-way radio signals can cover longer distances. A repeater sited at a high elevation can allow two mobile stations, otherwise out of line-of-sight propagation range of each other, to communicate. [1]

  6. Land mobile radio system - Wikipedia

    en.wikipedia.org/wiki/Land_mobile_radio_system

    Land mobile radio systems are widely used by the military. Separate bands in the radio spectrum are reserved for their use. This includes portions of the 30-50 MHz band, and the entire 100-100, 100-100.8, and 540-2400 MHz bands, plus shared use of the 170- 170 MHz band.

  7. Personal radio service - Wikipedia

    en.wikipedia.org/wiki/Personal_radio_service

    Two frequency bands available: VHF-FM (142–143 MHz VHF CB) and UHF-FM (476–477 MHz UHF CB). Indonesia allows 40 channels from 476.425 MHz to 477.400 MHz at 25 kHz channel spacing. It is the same channel plan as the original 40 channel Australia/New Zealand UHF CB allocation.

  8. Trunked radio system - Wikipedia

    en.wikipedia.org/wiki/Trunked_radio_system

    Specialized Mobile Radio (SMR) may be an analog or digital trunked two-way radio system, operated by a service in the VHF, 220, UHF, 700, 800 or 900 MHz bands. Some systems with advanced features are referred to as an Enhanced Specialized Mobile Radio ( ESMR ). [ 4 ]

  9. Professional mobile radio - Wikipedia

    en.wikipedia.org/wiki/Professional_mobile_radio

    The mobile transmits its own code along with that of the destination of the call, either another mobile or a control office. The control software and circuitry within the base station and the central control processing area for the network sets up the network so that a channel is allocated for the audio (the traffic channel).

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