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This article will explain in detail whether the bandwidth of the router in the Internet is 20 or 40. The editor thinks it is very practical, so I share it with you as a reference. I hope you can get something after reading this article.

The bandwidth of the router is best selected automatically, and the router will send it automatically according to your network speed and frequency. Automatic, is the route automatically switch according to the environment, generally set automatic; if there are few signal sources, just specify 40m to use.

The operating environment of this tutorial: windows7 system, Dell G3 computer.

It is best to select automatically, and the router will send it automatically according to your network speed and frequency.

1. 802.11n supports 20MHz and 20MHZ/40MHz channels. The bandwidth of 20MHZ is used in the previous standard, and the bandwidth of 20/40MHZ is used in 802.11n. The available channel bandwidth of 40MHz channel is more than twice that of two 802.11 legacy channels. 802.11n standard supports 20MHz and 40MHz channels, in which 40MHz channel will be the widest channel, composed of two adjacent, legacy 20MHz spectrum channels; of course, only 20MHz channel can be used, which is determined by the specific situation.

2. The signal penetration of 20mhz is strong, but it may slow down the download speed; the signal download ability of 40mhz is strong, but it may lead to narrow coverage area. For example, band bandwidth refers to the transmit frequency width of your router:

20MHz corresponds to 65m bandwidth with good penetration and long transmission distance (about 100m).

40MHz corresponds to 150m bandwidth penetration poor transmission distance (about 50 meters).

3. If you have few wifi sources around you, use a 40-band one to maximize speed. If there are many wifi sources around, so the limited channel will be congested, with a 40m bandwidth, the speed will be slow instead of fast. At this time, it will be better to use 20m bandwidth so as to reduce the chance that the channel will be occupied. So whether to use 20 or 40 depends on the environment.

Automatic, the route is automatically switched according to the environment, and the general setting is automatic. If, as mentioned in the first case, there are few signal sources, just specify 40m.

This is the end of the article on "whether the bandwidth of routers in the Internet is 20 or 40". I hope the above content can be of some help to you, so that you can learn more knowledge. if you think the article is good, please share it for more people to see.

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