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Motorola TA288 PMR446 licence-free radio Motorola TLKR T40 radio tuned to PMR channel 1. PMR446 (Private Mobile Radio, 446 MHz) is a licence-exempt service or UHF CB in the UHF radio frequency band, as personal radio service or citizens band radio, and is available for business and personal use in most countries throughout the European Union, [1] Malaysia, [2] and Singapore.
In June 2007, Hytera acquired Marketronics Corporation, now known as Hytera America, Inc., located in Miramar, Florida.In 2019, Hytera and several other Chinese-based companies, including Huawei, were placed on a ban list of the 2019 National Defense Authorization Act (NDAA) [5] to not do any business with U.S. federal agencies due to national security and human rights concerns.
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 ]
Digital mobile radio (DMR) is a digital radio standard for voice and data transmission in non-public radio networks.It was created by the European Telecommunications Standards Institute (ETSI), [1] and is designed to be low-cost and easy to use.
For example, a 150 MHz hand held may communicate to a vehicle-mounted low-power transceiver. The low-power radio repeats transmissions from the portable over the vehicle's high power mobile radio, which has a much longer range. In these systems, the hand-held works so long as it is within range of the low power mobile repeater.
CB was, and still is, designed for short-distance (local) communications needs. US FCC law prohibits communicating with any station more than 250 km (155.3 miles) on CB frequencies.(150-mile rule deleted by FCC September 2017) Like many rules regarding the HF CB services, the distance prohibition is largely ignored and unenforced. Often as a ...