With the progress of the times, the progress of science and technology, wireless broadcasting has military products have been transformed into civil electronic products, traditional cable broadcasting, slowly to wireless broadcasting transformation, rural radio will also keep pace with the pace of the times!
The development history of civil radio broadcasting has only developed in recent ten years. From the beginning of signal instability, drift, unclear voice, to the current two-way frequency locking technology, digital analog system, RDS technology, wireless broadcasting gradually tends to mature system. Some people will think about a question: should the broadcasting system in our village be upgraded to the current wireless system? Some people think that wireless electronic products are very difficult to operate, while others think that we are villagers and do not understand high-tech things... In fact, they are not. The wireless broadcasting equipment is set up before the manufacturer leaves the factory, and can be used normally with the goods in hand.
The system is composed of the following parts: transmitter + feeder + antenna + wireless receiver + loudspeaker. The transmitter is equivalent to the previous power amplifier. It is placed indoors and connected with the antenna by feeder. The antenna is placed outdoors at a distance of 8-12 meters from the ground. At this time, the host side is considered as complete. Next is the installation part of the wireless loudspeaker. The wireless receiver is connected with the high pitched loudspeaker in parallel, and then it is fixed in the open place at a high place and powered on. Even if a loudspeaker point is installed (usually two speakers for one point in a natural village), when the transmitter is turned on again, the wireless receiver can automatically look for the signal of the transmitter. Within three seconds after the transmitter is turned on, the receiver and the loudspeaker outside will be able to detect the signal of the transmitter automatically When the transmitter is turned off, the receiver and the horn will automatically enter the sleep state to ensure that the horn will never make any sound without the command of the transmitter.
The above is about the use of wireless broadcasting. If the village has a set of cable broadcasting in use but it is not flexible, then you can buy the transmitter and receiver again, and the loudspeaker can still be used normally, and a part of the expenses will be left over.
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