+ PRS409 channels Channel Frequency [MHz] 1 409.7500 2 409.7625 3 409.7750 4 409.7875 5 409.8000 6 409.8125 7 409.8250 8 409.8375 9 409.8500 10 409.8625 11 409.8750 12 409.8875 13 409.9000 14 409.9125 15 409.9250 16 409.9375 17 409.9500 18 409.9625 19 409.9750 20 409.9875
Public Radio Service (PRS) () is a walkie-talkie personal radio service in the mainland of China, Hong Kong and Macau, but excluding Taiwan. It can be used without a license, and no fees are charged for the use of the frequencies. It uses 409 MHz. It is also known as PRS409.微功率(短距离)无线电发射设备的技术要求 （信部无 423 号文件） (trans-title:Technical requirements for micropower (short range) radio transmitting equipment) page 8 It is similar to the American and Canadian Family Radio Service (FRS) and PMR446 in the European Union.
Technical information The PRS radio channels use narrow-band frequency modulation (NBFM) with a maximum deviation of 2.5 kHz. The channels are spaced at 12.5 kHz intervals. They are limited to 500 milliwatts effective radiated power.
PRS radios are not allowed to be used at airports and onboard aircraft. They are not allowed to be connected to the public switched telephone network or cellular network.
See also 70-centimeter band CDCSS Continuous Tone-Coded Squelch System (CTCSS) Family Radio Service (the equivalent of PRS in Canada, the US, and some other countries) General Mobile Radio Service KDR 444 LPD433 Multi-Use Radio Service Personal radio service Personal radio service#Taiwan UHF CB
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