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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] Singapore, [3] and Norway [4].
The term PMR is often used by the public and magazine publishing to refer to the low power (500 milliwatt) PMR446 license exempt radio systems that consist of sixteen FM frequencies between 446.00625 and 446.19375 MHz for analog FM and thirty-two FDMA (digital) channels between 446.003125 and 446.196875 MHz. These are used for personal or ...
In November 1998, ERC Decision (98)25 allocated frequency band 446.0-446.1 MHz for analogue PMR446; another two decisions established licence exemption for PMR446 equipment and free circulation of the PMR446 equipment. The first country which introduced these frequencies for licence-free use was Ireland on 1 April 1998.
On 1 April 2010, [9] the Malaysian Communications and Multimedia Commission (MCMC) introduced PMR446 (446.00625 MHz to 446.093750 MHz and 446.103125 MHz to 446.196875 MHz) in addition to 26.965 MHz to 27.405 MHz as a class assignment. [10] Subsequently, the MCMC revoked 477 MHz personal radio service as a class assignment on 1 January 2022. [11]
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dPMR or digital private mobile radio, is a common air interface for digital mobile communications. dPMR is an open, non-proprietary standard that was developed by the European Telecommunications Standards Institute (ETSI) and published under the reference ETSI TS 102 658.
Name Unit cost (2024) Type Production status Frequency range Max bandwidth RX ADC bits TX DAC bits TX capable Sampling rate Frequency accuracy ppm Panadapters / Receivers
NIT (Network Information Table) The MPEG-2 specification does not specify the format of the CAT and NIT. PSI is carried in the form of a table structure. Each table structure is broken into sections, although some tables like a PMT cannot have more than one section. Each section can span multiple transport stream packets.