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  2. Walkie-talkie - Wikipedia

    en.wikipedia.org/wiki/Walkie-talkie

    Typical walkie-talkies resemble a telephone handset, with a speaker built into one end and a microphone in the other (in some devices the speaker also is used as the microphone) and an antenna mounted on the top of the unit. They are held up to the face to talk. A walkie-talkie is a half-duplex communication device. Multiple walkie-talkies use ...

  3. List of amateur radio transceivers - Wikipedia

    en.wikipedia.org/wiki/List_of_amateur_radio...

    The (American version) radio's main receiver covers 30 kHz through 60 MHz, 142 MHz through 152 MHz, and 420 through 450 MHz (plus 1240 through 1300 MHz with the "X" model). The sub-receiver tunes between 118 and 174 MHz, and from 220 to 512 MHz (VFO ranges).

  4. CB radio in the United States - Wikipedia

    en.wikipedia.org/wiki/CB_radio_in_the_United_States

    In the days when CB required a license, some low-powered or toy walkie-talkies were exempt because they operated within Part 15. However, in 1976, the FCC phased in a shift of these 100 mW [ 12 ] devices to the 49 MHz band, with operation on the CB frequencies to cease in 1983. [ 13 ]

  5. Citizens band radio - Wikipedia

    en.wikipedia.org/wiki/Citizens_band_radio

    Shown with Astatic brand D-104 desk mic Cobra 18 WX ST II mobile CB radio with microphone Cobra 50 WX ST Handheld CB Radio Citizens band radio ( CB radio ) is a land mobile radio system , a system allowing short-distance one-to-many bidirectional voice communication among individuals, using two-way radios operating near 27 MHz (or the 11-m ...

  6. List of software-defined radios - Wikipedia

    en.wikipedia.org/wiki/List_of_software-defined...

    TX: 875–1525 MHz ? Yes RX: 1.6 GSPS TX: 3.2 GSPS ? PCIe Yes No No Xiegu G90 : Pre-built RX: 0.5 - 30 MHz TX: all amateur bands 1.8 - 30 MHz 48 kHz 24 Yes 20 W ±24k bandwidth spectrum display with waterfall; 10 1/1 Embedded system (no computer needed), I/Q output for interfacing with a PC or XDT1 panadapter Yes Yes Yes XTRX Pro [133] Pre-built

  7. Family Radio Service - Wikipedia

    en.wikipedia.org/wiki/Family_Radio_Service

    Motorola T5320 FRS handheld radio. The Family Radio Service (FRS) is an improved walkie-talkie radio system authorized in the United States since 1996. This personal radio service uses channelized frequencies around 462 and 467 MHz in the ultra high frequency (UHF) band.

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