PoC radio

Last updated
PoC radio
Other namePTToC radio
TypePoC device
Core function Push-to-talk [1]
Introduced byTYT
Communication mode half-duplex

A PoC radio (short for push to talk over cellular radio [2] ), also known as PTToC radio, [3] is an instant communication device that is based on the cellular network. [4] It is a radio device that incorporates push-to-talk technology into a cellular radio handset. [5] It allows users to communicate with one or more receivers instantly, [6] in a half-duplex mode. [7]

Although a PoC radio is a walkie-talkie-like device, [8] there are substantial differences between them. [9] Compared to the latter, the former has a wider range of channels, covers a wider area, and does not require a license to transmit. [9] In addition, a PoC radio supports advanced functions, such as, video calls, multimedia messages, GPS location tracking, and emergency notifications. [10]

PoC radios are widely used in the industries of private security, logistics, hospitality, and rescue. The representative manufacturers of such equipments include Hytera [11] and ToooAir. [12]

History

The concept of PoC was introduced by U.S. telecommunications company Nextel in 1987. [13] The first commercial use of PoC radios was also started by the company in 2002. [14]

In June 2005, the Open Mobile Alliance rolled out an approved standard called "PoC 1.0". [15] In April 2020, Hytera presented a PoC radio named PNC550, equipped with a 5-inch touchscreen that supports full operation using gloves. [16]

Related Research Articles

The Universal Mobile Telecommunications System (UMTS) is a 3G mobile cellular system for networks based on the GSM standard. Developed and maintained by the 3GPP, UMTS is a component of the International Telecommunication Union IMT-2000 standard set and compares with the CDMA2000 standard set for networks based on the competing cdmaOne technology. UMTS uses wideband code-division multiple access (W-CDMA) radio access technology to offer greater spectral efficiency and bandwidth to mobile network operators.

<span class="mw-page-title-main">Wireless network</span> Computer network not fully connected by cables

A wireless network is a computer network that uses wireless data connections between network nodes. Wireless networking allows homes, telecommunications networks and business installations to avoid the costly process of introducing cables into a building, or as a connection between various equipment locations. Admin telecommunications networks are generally implemented and administered using radio communication. This implementation takes place at the physical level (layer) of the OSI model network structure.

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<span class="mw-page-title-main">Ultra high frequency</span> Electromagnetic spectrum 300–3000 MHz

Ultra high frequency (UHF) is the ITU designation for radio frequencies in the range between 300 megahertz (MHz) and 3 gigahertz (GHz), also known as the decimetre band as the wavelengths range from one meter to one tenth of a meter. Radio waves with frequencies above the UHF band fall into the super-high frequency (SHF) or microwave frequency range. Lower frequency signals fall into the VHF or lower bands. UHF radio waves propagate mainly by line of sight; they are blocked by hills and large buildings although the transmission through building walls is strong enough for indoor reception. They are used for television broadcasting, cell phones, satellite communication including GPS, personal radio services including Wi-Fi and Bluetooth, walkie-talkies, cordless phones, satellite phones, and numerous other applications.

<span class="mw-page-title-main">Push-to-talk</span> Protocol in half-duplex telecommunication devices

Push-to-talk (PTT), also known as press-to-transmit, is a method of having conversations or talking on half-duplex communication lines, including two-way radio, using a momentary button to switch from voice reception mode to transmit mode.

<span class="mw-page-title-main">Walkie-talkie</span> Hand-held portable two-way communications device

A walkie-talkie, more formally known as a handheld transceiver (HT), is a hand-held, portable, two-way radio transceiver. Its development during the Second World War has been variously credited to Donald Hings, radio engineer Alfred J. Gross, Henryk Magnuski and engineering teams at Motorola. First used for infantry, similar designs were created for field artillery and tank units, and after the war, walkie-talkies spread to public safety and eventually commercial and jobsite work.

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<span class="mw-page-title-main">Nextel</span> Former telecommunications company

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References

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  3. Cooley, Brian (May 23, 2019). "With a black SIM, first responders' calls go ahead of yours". CNET . Archived from the original on July 25, 2021.
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  9. 1 2 "Portable Two-Way Radio: PoC Radios vs. Walkie Talkies". Express Digest. October 15, 2020. Archived from the original on October 29, 2020.
  10. "IDIS acquires KT Powertel to extend secure mobile comms and IoT capability - Security and Fire News and Resources". IFSEC Global. February 5, 2021.
  11. Fox, Jena Tesse (May 26, 2022). "Hytera US launches new communications device". Hotel Management .
  12. Sharon O'Keeffe (November 28, 2017). "ToooAir release "push to talk over cellular" (PTToC) transceiver". Queensland Country Life . Archived from the original on August 30, 2022.
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  16. "Hytera new solution assists COVID-19 frontliners detect abnormal body temperature". Borneo Bulletin . April 14, 2020.