Wireless modules have been used in our daily lives, and they are also widely used. According to RenHOTEIC, the maximum transmission distance of the transmitter and receiver modules in open areas is generally about 800 meters. In the case of obstacles, the distance is It is easy to shorten, because the refraction and reflection in the radio signal transmission process will form some dead zones or some unstable areas, and different transceiver environments will have different transceiver distances. We need to understand this.


  For the transmitting and receiving wireless module, it is best to be installed vertically on the edge of the motherboard. At this time, we need to pay attention to the distance of more than 5mm from the surrounding devices to avoid being affected by the distribution parameters, the transmission distance of the module and the frequency and amplitude of the modulation signal, the transmission voltage and the battery Capacity, transmitter antenna, receiver sensitivity, and transceiver environment are related.


  At present, ASK modulation is mainly used for transmitting and receiving wireless modules to reduce power consumption. When the data signal stops, the transmitting current drops to zero. The data signal and the input of the transmitting module can be connected with resistance or directly instead of capacitive coupling. Otherwise, the transmitting wireless module will not work normally, and the data level should be close to the actual working voltage of the data module to obtain a higher modulation effect.


  RENHOTECIC has a complete range of wireless modules, a large amount of inventory, can be shipped quickly, honest merchants, worry-free purchase, welcome to buy and consult.