Car walkie-talkie with dual-band simultaneous reception

Abstract

A vehicle-mounted intercom having double frequency bands and capable of simultaneous reception is mainly composed of a receiving unit One, a receiving unit Two, a called unit One, a called unit Two, an audio switching unit and a telephone transmitting unit. The receiving unit One and the receiving unit Two respectively receive different carrier signals of different frequency bands, are respectively electrically connected with the audio switching unit through leads, and are respectively connected with an antenna. The called unit One and the called unit Two are respectively electrically connected with the audio switching unit. The telephone transmitting unit is electrically connected with the audio switching unit. The intercom in the present invention is capable of receiving carrier signals of two different frequency bands, solves a problem that a conventional vehicle-mounted intercom has a receiver of a signal frequency band alone, and can only receive conversation content of two different frequency bands by adding another vehicle-mounted intercom with another frequency band, and helps to save communication cost, prevent repeated purchases and enable the communication to be relatively flexible and timely.

Description

technical field [0001] The invention relates to a vehicle-mounted walkie-talkie, in particular to a vehicle-mounted walkie-talkie with dual frequency bands capable of simultaneous reception. Background technique [0002] The walkie-talkie, commonly known as "walkie-talkie, walkie-talkie, is a professional communication tool for mobile communication. It has the function of allowing many people to communicate at the same time. It enables many people to receive the audio of the same frequency transmitter at the same time. Its characteristics are: instant messaging, one response, extremely low operating costs, no communication costs, easy to use, and also has group call broadcast, system call, confidential call and many other functions, it is a major communication tool for emergency communication . [0003] At present, the car-mounted walkie-talkies on the market are single-band walkie-talkies, that is, the traditional car-mounted walkie-talkie has only one receiver. Although i...

AI Technical Summary

Problems solved by technology

Using two walkie-talkies with different frequency bands to achieve simultaneous reception of two frequency bands, this communication method causes increased communication costs, inconvenient installation, waste of data and many other inconveniences

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