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A double-frequency band vehicle-mounted intercom having two operating systems

A vehicle-mounted walkie-talkie, operating system technology, applied in transmission systems, electrical components, etc., can solve problems such as noise and mixing, and achieve the effect of strong practicability and no limitations

Inactive Publication Date: 2013-10-30
泉州欧讯电子有限公司
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AI Technical Summary

Problems solved by technology

[0003] At present, most of the existing car walkie-talkies only work in one working frequency band, such as VHF (30-300MHz) or UHF (300-3000 MHz) The single frequency band works, on the one hand, it has limitations in listening to the frequency band during use, on the other hand, the single frequency band also has noise, mixing and other phenomena.

Method used

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  • A double-frequency band vehicle-mounted intercom having two operating systems

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Embodiment Construction

[0013] Such as figure 1 As shown, a dual-band vehicle-mounted intercom with two operating systems is mainly composed of a frequency band display 1 , a frequency band display 2 4 , a CPU controller 2 and a keyboard controller 1 .

[0014] The frequency band display 1 3 and the frequency band display 2 4 are respectively electrically connected to the CPU controller 2 through wires, and the keyboard controller 1 is electrically connected to the CPU controller 2 through wires.

[0015] The CPU controller 2 is used to effectively control the frequency setting, the channels named by numbers and characters, and the range of bands, and the keyboard controller 1 is used for selective adjustment.

[0016] The frequency band display one 3 and the frequency band display two 4 can display different frequency bands, and can also display the same frequency band; the two-section display can clearly display the frequency setting, the channel named by numbers and characters, and the ba...

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PUM

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Abstract

A double-frequency band vehicle-mounted intercom having two operating systems is mainly composed of a frequency band display One, a frequency band display Two, a CPU controller and a keyboard controller, wherein the frequency band display One and the frequency band display Two are respectively electrically connected with the CPU controller through electric wires; and the keyboard controller is electrically connected with the CPU controller through an electric wire. Compared with similar products in the prior art, the intercom in the present invention easily allows reception of work of two identical frequency bands or different frequency bands, has a work mode of separated independent operation with no mutual interference, is not limited in frequency bands when conversations among multiple persons are conducted, and has strong practicality.

Description

technical field [0001] The invention relates to a vehicle-mounted walkie-talkie, in particular to a dual-band vehicle-mounted walkie-talkie with two operating systems. Background technique [0002] The radio car walkie-talkie is a kind of wireless communication tool in mobile calls. Because it has the function of allowing many people to communicate with each other at the same time, so that many people can listen to the same person at the same time, communicate in real time, and respond to all calls. It is economical and practical, with low operating costs. It does not consume call charges and is easy to use; especially in dealing with emergencies or dispatching and commanding, its role cannot be replaced by other communication tools. [0003] At present, most of the existing vehicle-mounted walkie-talkies only work in one working frequency band, such as VHF (30-300MHz) or UHF (300-3000 MHz) working in a single frequency band. On the other hand, the single frequency band a...

Claims

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Application Information

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IPC IPC(8): H04B1/38H04B1/3822H04B1/3827
Inventor 陈泉庆
Owner 泉州欧讯电子有限公司
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