Main factors affecting remote distances are as follows:
Power distance, power consumption, and prone to interference;
The receiving sensitivity of the receiver, remote control distance increases, but subject to interruptions caused by malfunction or out of control;
Use linear antennas, and parallel to each other, remote distance, but occupies a large space, in use can increase wireless range antenna elongated and straightened;
Antenna, the higher the remote distance farther, but due to conditions;
Using the wireless remote use of UHF frequency bands stipulated by the State, its transmission characteristics and approximate, rectilinear propagation, diffraction, small transmitters and receivers there is the wall between blocks will be greatly discounted wireless range, if it is a reinforced concrete walls, conductor of radio wave absorption, is more so.