Remote Control is a remote control for a mechanical device. Modern remote control, mainly by the integrated circuit board and used to generate different messages composed buttons. Factors Affecting the remote control distance of the following main points:
1, transmit power: the distance transmit power, but power consumption is large, prone to interference;
2, receiver sensitivity: Receiver sensitivity increase receiver, remote control distance increases, but susceptible to interference caused by malfunction or loss of control;
3, the antenna: The antenna straight and parallel to each other, the remote distance, but occupy a large space, in use, the antenna stretched, straightened to increase the remote distance;
4, H: The higher the antenna, the farther from the remote control, but by objective conditions;
5, stop: currently used wireless remote control using state of the UHF band, whose propagation characteristics and light approximation, linear propagation, diffraction is small, between the transmitter and the receiver, if the barrier wall will be greatly discounted from the remote control, if it is reinforced concrete walls, due to the absorption of the wave conductor, a greater impact.
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