快卷簾門相信很多人都見過，車庫或者小商店門面裝修中大部分都會使用到。在以前的時候，卷簾門一般是用鑰匙打開，手動使用，但是現在有了遙控卷簾門，使用起來更加方便了，但是其使用問題也有很多。

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 manually with a key, but now with remote control roller shutter doors, it is more convenient to use, but there are also many usage problems.

快速卷簾門遙控距離的影響因素如下：

The factors affecting the remote control distance of fast rolling shutter doors are as follows:

接收靈敏度：快速門的接收器接收靈敏度提高，能夠使得遙控距離增大，但可能會受干擾造成失控或誤動。

Receiving sensitivity: The receiver of the fast gate has improved receiving sensitivity, which can increase the remote control distance, but may be affected by interference and cause loss of control or misoperation.

發射功率：發射功率功能大則距離較遠，但確定是消耗電多且易產生受到干擾。

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.

高度因素：天線越高，遙控距離越遠，但受客觀條件影響限制。

Height factor: The higher the antenna, the farther the remote control distance, but it is limited by objective conditions.

天線因素：相互平行直線型天線，遙控距離較遠，但占據空間大，在使用中把天線拉長、拉直可增加遙控距離。

Antenna factor: Parallel linear antennas have a long remote control distance but occupy a large space. Lengthening and straightening the antennas during use can increase the remote control distance.

阻礙物阻擋：使用UHF頻段的無線遙控器，其傳播特性和光相似，直線傳播，繞射較小，發射器和接收器之間如有墻壁會阻擋遙控距離，有時候鋼筋混泥土的墻壁，由于導體對電波的吸收作用，可能會受到影響。

Obstacle obstruction: Wireless remote controllers in the UHF frequency band have propagation characteristics similar to light, with linear 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.