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  2. Two-way radio - Wikipedia

    en.wikipedia.org/wiki/Two-way_radio

    Naval air traffic controller communicates with aircraft over a two-way radio headset A variety of portable handheld two-way radios for private use. A two-way radio is a radio transceiver (a radio that can both transmit and receive radio waves), which is used for bidirectional person-to-person voice communication with other users with similar radios, [1] in contrast to a broadcast receiver ...

  3. List of radios - Wikipedia

    en.wikipedia.org/wiki/List_of_radios

    The RCA model R7 Superette superheterodyne table radio. This is a list of notable radios, which encompasses specific models and brands of radio transmitters, receivers and transceivers, both actively manufactured and defunct, including receivers, two-way radios, citizens band radios, shortwave radios, ham radios, scanners, weather radios and airband and marine VHF radios.

  4. 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 ...

  5. List of amateur radio frequency bands in India - Wikipedia

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

    Antennas at a ham operator's station in Chennai, India. Amateur radio or ham radio is a hobby that is practised by over 16,000 licensed users in India. [1] Licences are granted by the Wireless and Planning and Coordination Wing (WPC), a branch of the Ministry of Communications and Information Technology.

  6. Citizens band radio in India - Wikipedia

    en.wikipedia.org/wiki/Citizens_band_radio_in_india

    Cobra 18 WX ST II mobile CB radio with microphone. Citizens band radio (also known as CB radio) is a system of short-distance radio communications between individuals on a selection of channels within the 27-MHz (11 m) band. In India, this frequency band extends from 26.957 MHz to 27.283 MHz. There are several different channel plans in use.

  7. List of software-defined radios - Wikipedia

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

    mini PCIe Un­known Yes Un­known Xilinx Artix7 50T Zeus ZS-1 [134] [135] [136] Pre-built 300 kHz – 30 MHz ? Yes 10 kHz, 20 kHz, 40 kHz, 100 kHz 1/3 USB 2.0 Yes No No USRP N310 [137] Pre-built 10 MHz – 6 GHz 100 MHz 16 14 Yes 122.88, 125, and 153.6 MS/s 0.1 ppm SFP+/ Gigabit Ethernet Yes Yes Yes Xilinx Zynq 7100

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