Factors affecting the distance and effect of the intercom

[ Huaqiang Security Network News ]

Factors affecting the distance and effect of the walkie-talkie . System parameters:

The stronger the transmitter output power, the larger the coverage of the transmitted signal and the farther the communication distance. However, the transmission power should not be too large, and the transmission power is too large, which not only consumes electricity, but also affects the life of the power amplifier components, and is highly interfering, affecting the call effect of others, and also causing radiation pollution. Radio management agencies in various countries have clearly defined the transmission power of communication equipment.

Factors affecting the distance and effect of the intercom

The higher the receiving sensitivity of the communication machine, the farther the communication distance is.

The gain of the antenna, when the antenna is matched with the machine, usually, the antenna height is increased, and the receiving or transmitting capability is enhanced. The antenna used for the walkie-talkie is generally a helical antenna, and its bandwidth and gain are smaller than other types of antennas, and are more susceptible to human influence.

Factors affecting the distance and effect of the walkie-talkie . Environmental factors:

Environmental factors mainly include paths, tree density, environmental electromagnetic interference, buildings, weather conditions, and terrain differences. These and other parameters directly affect the field strength and coverage of the signal.

Factors affecting the distance and effect of the walkie-talkie . Other influencing factors:

The battery is low and the call quality will deteriorate when the battery is low. In severe cases, there will be noise, affecting normal calls. The antenna is matched, the frequency band of the antenna is inconsistent with the machine frequency band, and the antenna impedance is not matched, which will seriously affect the call distance. For the user, when switching the antenna, pay attention to tightening the antenna. In addition, you should not use the antenna provided by the manufacturer, or use the antenna that does not meet the frequency of the machine.

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