Product description:
The transmitter module is a remote control device that uses radio signals to control various institutions in the distance. After these signals are received by the remote receiving device, they can instruct or drive various other corresponding mechanical or electronic devices to complete various operations, such as closing the circuit, moving the handle, and starting the motor, and then these machines will perform the required operations. As a kind of remote control supplemented with infrared remote control, it has been widely used in garage door, electric door, gate remote control, burglar alarm, industrial control and wireless smart home field.
The main factors that affect the remote control distance of the transmitter module are as follows:
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Transmitting power: if the transmitting power is large, the distance will be long, but the power consumption is large and it is easy to cause interference;
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Receiving sensitivity: The receiving sensitivity of the receiver is improved, and the remote control distance is increased, but it is easy to be disturbed and cause misoperation or loss of control;
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Antenna: Straight-line antennas are used, and they are parallel to each other. The remote control distance is long, but it occupies a large space. Extending and straightening the antenna during use can increase the remote control distance;
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Height: The higher the antenna, the farther the remote control distance is, but it is limited by objective conditions;
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Blocking: The currently used wireless remote control uses the UHF frequency band specified by the state. Its propagation characteristics are similar to those of light, with straight line propagation and small diffraction. If there is a wall between the transmitter and the receiver, the remote control distance will be greatly reduced. Dirt walls have even more impact due to the absorption of electric waves by conductors.
