What factors are affected by COFDM devices during transmission?

COFDM is a very advanced technology in the field of wireless transmission. Its main function is to transmit high-definition audio and video signals quickly and stably in a mobile environment with blocking. Its biggest advantage is to support applications that break through the line of sight limitation. Shooting power and penetration are the core of its technology, and it has good immunity to noise and signal interference, so it is very common in modern wireless transmission applications. But although COFDM performance is so powerful, it will still be affected by some factors in practical applications. Let's take a look at it.

1, antenna gain

In COFDM mobile wireless video transmission equipment applications, when the transmitter uses a high-gain directional antenna, it can significantly improve the power density (field strength) in the communication direction, and the receiver can significantly improve the signal/noise when using a high-gain directional antenna. Than, and increase the receiving field strength, thereby greatly improving the communication distance.

2, obstacle blocking

COFDM mobile wireless video transmission equipment has the ability to diffract, but the diffraction will cause the transmission signal to be weak, so the closer the obstacle is encountered, the closer the transmission distance of the equipment is.

3, the power of the device

Generally speaking, the transmission power and conditions are certain, the greater the power of the COFDM mobile wireless video transmission device, the farther the transmission distance is.

4, the same frequency electromagnetic signal interference

Although COFDM mobile wireless video transmission equipment has a very strong anti-interference ability, its transmission distance is also affected by signal interference of the same frequency.

5, altitude

Due to the curvature of the earth, there will be a certain drop in the transmitting and receiving ends of the device as the distance increases. Therefore, the distance should be adjusted according to the altitude during long-distance transmission.