The main factors affecting the remote control distance of radio are the following:
1, transmission power: the transmission power is far away, but the power consumption is large, easy to produce interference;
2, reception sensitivity: the receiver's reception sensitivity increased, the remote control distance increased, but easy to be disturbed caused by mismovement or out of control;
3, antenna: the use of linear antenna, and parallel to each other, remote control distance, but occupy a large space, in use to elongate the antenna, straighten can increase the remote control distance;
4, height: the higher the antenna, the distance of remote control, but limited by objective conditions;
5, blocking: the use of the wireless remote control using the state-mandated UHF band, its propagation characteristics and light approximation, linear propagation, winding is small, if the transmitter and receiver such as wall blocking will greatly discount the remote control distance, if it is reinforced mud wall, due to the conductor's absorption of the airwaves, the impact is even worse.
