Why do two routers interfere with each other, but two base stations do not?

Why do two routers interfere but two base stations do not?

Non-professional answer, please forgive the mistakes:

Electromagnetic waves can cause interference, but in telecommunications-related information, there are rules, that is, protocols, that stipulate when electromagnetic waves transmit electrical signals. In addition, there are various multiplexing methods (such as wavelength division and time division multiplexing) that can transmit multiple information within a certain band.

In addition, base station construction is carried out according to scientific principles, and they are usually evenly distributed. Different base station heights and antenna types will have different effects on coverage. Especially now that the base stations of the three operators are managed by tower companies to ensure efficient use of resources, places with multiple signal coverage are rare.

Routers have different frequency bands and channels. The 2.4GHz frequency band is generally divided into 13 channels, while the 5GHz frequency band generally has 4 channels (in China). Most routers automatically detect idle channels and avoid busy channels to send information.

will interfere, but through some means and algorithm, the interference is avoided.

Do multiple wifi signals interfere with each other? What to do if so

After turning on the computer, it is very common to search for multiple wireless networks. In addition to being limited by router power and wall penetration capabilities, there is another issue that is easily overlooked, and that is mutual interference between wireless networks. Using the inSSIDer software, you can easily detect the wireless network status in the surrounding environment and avoid mutual interference problems by adjusting the signal of the wireless router.

Step1: Select the least occupied channel

After running the software, select the wireless network card used by the computer, as shown in the figure,

Then switch to the "Networks" tab and you can see that it has automatically found the surrounding WIFI and listed the relevant information, including SSID name, channel, signal strength, encryption status, MAC address, etc. This information can be clearly seen in Figure 2 (inSSIDer02.jpg).

Nowadays, there are more channels 1 and 11 occupied in WIFI, but the author chose only one channel. If the channel you choose takes up more space, you need to enter the wireless router to change the channel to a smaller one and save the settings; use negative numbers in Signal to indicate signal strength. The smaller the value, the stronger the signal.

Step2: Select a frequency band with less interference

In addition to the channel, the frequency band is also one of the important factors affecting the WIFI signal. Wireless network information is displayed in a waveform in inSSIDer, and the overlap indicates mutual interference. In Figure 3 (inSSIDer02.jpg),

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