User Tools

Site Tools


Sidebar

Welcome to our wiki. Here, you'll find guides on some basic networking concepts.

We connect Central New York businesses with Wi-Fi, security cameras, phone systems, and more.

Learn more on our website →


Networking Guides

Other Links

guides:wifi_standards_channels

Wi-Fi Standards and Channels

Below is a comparison of the most common Wi-Fi standards and channels available for use in the United States.

Comparison of common IEEE 802.11 standards

StandardFrequenciesMax PHY RateBandwidth
802.11ax
(Wi-Fi 6)
5 GHz14 Gbps20 MHz, 40 MHz, 80 MHz, 80+80 MHz, 160 MHz
801.11ac Wave 2
(Wi-Fi 5)
5 GHz3.47 Gbps20 MHz, 40 MHz, 80 MHz, 80+80 MHz, 160 MHz
802.11ac
(Wi-Fi 5)
5 GHz1.3 Gbps20 MHz, 40 MHz, 80 MHz, 160 MHz
802.11n
(Wi-Fi 4)
2.4 GHz, 5 GHz600 Mbps20 MHz, 40 MHz
802.11g
(Wi-Fi 3)
2.4 GHz54 Mbps20 MHz
802.11a
(Wi-Fi 2)
5 GHz54 Mbps20 MHz
802.11b
(Wi-Fi 1)
2.4 GHz11 Mbps20 MHz

Channels

2.4 GHz

There are eleven 2.4 GHz channels, all of which are 20 MHz wide. Note that the only “set” of non-overlapping channels is 1, 6, and 11:

5 GHz

No 5 GHz channels overlap:

Hardware manufacturers might have “interesting” ways of selecting channels. For example, let's say you wanted to set a UniFi AP to the first available 80 MHz channel. Technically, this would be channel 42. However, UniFi only allows you to select 20 MHz channels. Therefore, you would choose any of the 20 MHz channels within that 80 MHz range (36, 40, 44, or 48) and UniFi would actually set the AP to the correct 80 MHz channel (42).


guides/wifi_standards_channels.txt · Last modified: 2020/03/23 02:57 by aaronzufall

Page Tools