I believe many people have seen fast rolling shutter doors, which are commonly used in garage or small store decoration. In the past, roller shutter doors were usually opened with a key and used manually, but now with remote control roller shutter doors, it is more convenient to use, but there are also many problems with their use.
The influencing factors for the remote control distance of fast rolling shutter doors are as follows:
Receiving sensitivity: The receiver of the fast gate has increased receiving sensitivity, which can increase the remote control distance, but may be interfered with and cause loss of control or misoperation.
Transmission power: If the transmission power function is large, the distance is relatively long, but it is determined that it consumes a lot of electricity and is prone to interference.
Height factor: The higher the antenna, the farther the remote control distance, but it is limited by objective conditions.
Antenna factor: Parallel linear antennas with long remote control distances, but occupying a large space. Lengthening and straightening the antennas during use can increase the remote control distance.
Obstacle blocking: Using a wireless remote control in the UHF frequency band, its propagation characteristics are similar to light, with straight line propagation and less diffraction. If there is a wall between the transmitter and receiver, it will block the remote control distance. Sometimes, reinforced concrete walls may be affected due to the absorption of radio waves by the conductor.