Yongkang traffic police interphone frequency

In order to ensure the safety of communication services in special departments, the national radio management department has specially planned several groups of frequencies for its use, ranging from 350 MHz to 390 MHz, of which 350 MHz to 370 MHz are mainly used for public security systems. This part of the frequency is called the low end of 350MHz in the line. 370MHz~390MHz is used by other departments, and this frequency is called 350MHz high end. This kind of walkie-talkie is collectively called 350MHz police counterpart. Police walkie-talkies require high-frequency confidentiality. Police walkie-talkies can be divided into trunking walkie-talkies and conventional walkie-talkies Trunk interphone shall conform to the signaling standard of MPT 1327. The trunking intercom has both trunking intercom function and off-network communication function, and both trunking intercom and conventional intercom have multiple signal security functions.