Civil aviation high-frequency communication system

A high-frequency communication and civil aviation technology, applied in the transmission system, electrical components, etc., can solve the problems of signal instability and low transmission efficiency, achieve the effect of flexible exchange mode and improve signal transmission efficiency

Inactive Publication Date: 2015-06-03
林南
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] In order to overcome the problems of signal instability and low transmission efficiency in the existing high-frequency communication system for civil aviation, the present invention provides a high-frequency communication system for civil aviation

Method used

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  • Civil aviation high-frequency communication system

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Embodiment Construction

[0009] The principle of the civil aviation high-frequency communication system of the present invention is as follows: figure 1 As shown, the HF communication control board is connected to the input terminal of the transceiver through the audio amplifier, the output terminal of the transceiver is connected to the antenna coupler, the antenna coupler is connected to the high-frequency antenna, and the transceiver is also connected to the audio selection version. The contact distance is the same for ground / air communication. About 1000 ~ 2000km, the sending and receiving signals of the transceiver adopts half-duplex mode. The control box is used to select the working frequency, working mode and adjust the sensitivity of the receiver. There are four frequency knobs on the high-frequency communication system control box of the 3TO aircraft, which are used to select the working frequency of 1MHZ, 100KHZ, 10KHZ, and 1KHZ respectively. The working mode switch can select OFF (shutdow...

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Abstract

The invention relates to a civil aviation high-frequency communication system. An HF (High-Frequency) communication control board is connected with the input end of a transceiver by an audio amplifier; the output end of the transceiver is connected with an antenna coupler; the antenna coupler is connected with a high-frequency antenna; the transceiver is also connected with an audio selection board. According to the civil aviation high-frequency communication system disclosed by the invention, the flexible switching mode improves signal transmission efficiency and a signal transmission conversation effect; the high-frequency antenna is a slot antenna; a feeder line led out of the antenna coupler is connected to a certain point of a metal portion of the antenna with low resistance to a radio frequency current; design of the antenna can enable the coupler to match the antenna resistance with resistance of a 50ohm transmitter.

Description

technical field [0001] The invention relates to the field of electronic information, in particular to the field of wireless communication systems. Background technique [0002] With the continuous development of electronics and informatization and the increasing demand, the importance of information transmission to human life is self-evident. High-frequency communication systems are used for long-distance communication between aircraft or between aircraft and the ground. Communication link, which uses the reflection phenomenon of the ionosphere to realize the long-distance propagation of radio waves. The high-frequency communication system works on 28,000 channels at intervals of 1KHZ within the frequency range of 2~29,999MHZ, and adopts the working mode of AM and SSB. Each high-frequency communication system consists of a control panel, receiver / transmitter, antenna and antenna coupler. The high-frequency communication systems of 3TO, 33A, and 34N aircraft have the same w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/38H04B1/18
Inventor 林南
Owner 林南
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