Communication system consisting of desk-top ground single-channel base station and walkie talkies
A communication system and walkie-talkie technology, applied in the field of communication systems, can solve the problems of low environmental dependence, strong environmental dependence, and changeable conditions, and achieve the effects of low environmental dependence, strong anti-interference ability, and stable signal.
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[0020] Such as Figure 1-2 As shown, the channel machine in the base station performs 5km seamless coverage on the well (according to the antenna installation method) through the omnidirectional antenna, and sends out a downlink signal (base station→downhole) to go downhole through the leaky cable, and at the same time the uplink signal sent by the downhole walkie-talkie (downhole→downhole) base station) to the base station through the leaky cable. According to the attenuation parameters of the leaking cable, a repeater (signal amplifier) is installed at a certain distance underground to increase the amplitude of the two-way signal. According to the actual situation of the underground roadway, a distributor is installed at the branch point for different roadways For coverage, a load is added at the end of the leaky cable coverage for signal matching.
[0021] The function of the isolator is to ensure the non-physical connection between the safe area above the well and the u...
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