In the wireless bridge monitoring system, interference is a common problem, which may lead to a decline in signal quality, monitoring screen stuttering, and even black screen. To eliminate these interferences, we can start from the following aspects:

1. Reasonably plan the channel

1.1 Understanding frequency bands and channels

Wireless bridges are usually divided into two frequency bands: 2.4GHz and 5GHz. Within the same frequency band, WiFi signals with the same or similar channels will interfere with each other. Therefore, reasonable planning of channels is the first step to reduce interference.

1.2 Channel Allocation

• 2.4 GHz band: This band has 11 or 13 channels depending on the standards of different regions, but not all channels are completely non-overlapping. In planning, you can choose channels 1, 6, and 11 in most areas because they do not overlap with each other and can effectively reduce interference.
• 5GHz band: This band has a larger number of channels and a larger channel spacing, so there is relatively less interference. However, it is also necessary to plan reasonably to avoid channel conflicts.

1.3 Software Assistance

Using wireless bridge management software can easily scan the surrounding wireless environment, view channel usage, and automatically or manually select the optimal channel.

2. Adjust the position and angle of the equipment

2.1 Avoid blocking

Wireless bridge is a microwave signal transmission device, and the signal propagates along a straight line and is attenuated or reflected when it encounters obstructions. Therefore, during installation, it is necessary to avoid obstructions such as trees and buildings as much as possible to ensure that there is no or minimal obstruction between the transmitting and receiving ends.

2.2 Optimizing antenna angle

The antenna angle of a wireless bridge has a significant impact on the quality of signal transmission. During installation, ensure that the antenna is aligned horizontally and adjust the pitch angle appropriately to ensure that the signal can cover the target area and reduce signal leakage.

3. Use of anti-interference technology

3.1 Frequency-biased technology

Some high-end wireless bridges support frequency offset function, which can shift the normal wireless frequency by a certain range such as 5MHz, thus avoiding congested channels and interference sources and improving the stability and efficiency of signal transmission.

3.2 Anti-interference algorithm

Some advanced wireless bridge products have built-in anti-interference algorithms that can automatically identify and suppress interference signals from the surrounding environment, ensuring clear and smooth monitoring images.

4. Addition of relay equipment

4.1 Relay transmission

In the case of long transmission distance or many obstacles, you can consider using a relay device to extend the signal transmission distance and enhance the signal strength. The relay device can receive signals from the transmitting end and forward them to the receiving end, effectively eliminating interference and improving signal quality.

4.2 Multi-point relay

In complex environments, it may be necessary to use multiple relay devices to build a multi-point relay network. By reasonably planning the location of relay points and channel allocation, the stability and reliability of the entire monitoring system can be ensured.

5. Consider environmental factors

5.1 Meteorological factors

Meteorological conditions such as rain, snow, and haze can have a certain impact on wireless signals. When selecting equipment and planning the network, one should fully consider the local meteorological conditions and take appropriate protective measures.

5.2 Electromagnetic environment

In complex electromagnetic environments such as near high-voltage lines and around radar stations, wireless signals may be subject to electromagnetic interference. When deploying wireless bridges, these areas should be avoided or appropriate electromagnetic shielding measures should be taken.

Eliminating interference in wireless bridge monitoring systems requires a multi-faceted approach, including rational planning of channels, adjusting equipment location and angle, using anti-interference techniques, adding relay devices, and considering environmental factors. By comprehensively using these measures, the stability and reliability of the wireless bridge monitoring system can be ensured.