List of WLAN channels and Frequency Bands Explained

WLAN channels are a crucial part of wireless networking, and understanding them is essential for setting up a reliable and efficient network.

There are two main frequency bands used in WLANs: the 2.4 GHz band and the 5 GHz band. The 2.4 GHz band has 3 non-overlapping channels: 1, 6, and 11.

The 2.4 GHz band is the most commonly used band, but it's also the most crowded, which can lead to interference issues. This band has a range of 100 meters.

In contrast, the 5 GHz band has 23 non-overlapping channels, offering a faster and more reliable connection. However, its range is shorter, typically around 30 meters.

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WLAN Frequency Bands are used for wireless communication, and they're a crucial part of WLAN technology. The ISM bands, which include the 2.4 GHz band, are widely used for Wi-Fi and other applications.

The 2.4 GHz band is the most widely used band for Wi-Fi, and it's often referred to as the 2.4 GHz band. It can carry a maximum of three non-overlapping channels.

There are 14 channels available in the 2.4 GHz band, ranging from Channel 1 to Channel 14. Here's a list of the channels and their frequencies:

The 5 GHz band is also widely used for Wi-Fi, and it can carry up to 23 non-overlapping channels. This band is preferred by many because of the number of channels and the bandwidth available.

The 2.4 GHz Wi-Fi channels are a bit crowded, but there are 14 channels available globally, with not all of them accessible in every country.

Channel 1 operates from 2401 MHz to 2423 MHz, while Channel 2 operates from 2406 MHz to 2428 MHz.

Channel 14 operates from 2473 MHz to 2495 MHz.

The 5 GHz Wi-Fi channels offer more spectrum and less interference, making them a popular choice.

The 5 GHz band is divided into several channels, with some channels available in multiple regions.

Here's a breakdown of some of the 5 GHz channels:

Note that some channels are restricted in certain regions, so it's essential to check the availability of channels in your area.

The 5 GHz frequency band is a popular choice for Wi-Fi networks due to its high data transfer rates and relatively low interference levels. This band is part of the ISM (Industrial, Scientific, and Medical) spectrum, which is internationally agreed upon and available for use without a transmitting license.

The 5 GHz band is divided into several channels, each with its own frequency range. In Europe, for example, channels 36-64 are available for use, while in North America, channels 36-64 and 100-140 are available, but with some restrictions.

Using the 5 GHz band can provide faster Wi-Fi network speeds, but it's not without its challenges. The band is susceptible to interference from other devices, such as microwave ovens, which can cause issues with signal strength and stability.

Here are some common 5 GHz Wi-Fi channels and their corresponding frequencies:

It's worth noting that the availability of 5 GHz channels can vary depending on the region and country.

WiFi standards and bands are crucial to understand when setting up a WLAN network. There are several different 802.11 variants in use, each using different frequency bands.

The 802.11a standard uses the 5GHz band, while 802.11b and 802.11g use the 2.4GHz band. 802.11n is a bit more versatile, using both 2.4GHz and 5GHz bands.

Here's a summary of the frequency bands used by different 802.11 standards:

The 802.11 frequency bands are a crucial aspect of Wi-Fi technology. There are several different 802.11 variants in use, each using different bands.

The 2.4 GHz band is widely used, often referred to as the 2.4 GHz band, and is used by 802.11b, g, and n. It can carry a maximum of three non-overlapping channels.

The 5 GHz band, also known as the 5.8 GHz band, provides additional bandwidth and is used by 802.11a and n. It can carry up to 23 non-overlapping channels.

A different take: IEEE 802.11 RTS/CTS

The 802.11 types and frequency bands used are summarized in the table below:

The 5 GHz band is not as widely used as the 2.4 GHz band, which means it encounters less interference and provides faster Wi-Fi network speeds.

The 802.11ax and 802.11be WiFi standards are the latest advancements in wireless technology.

802.11ax, also known as Wi-Fi 6, was released in 2020 and offers improved performance and capacity in crowded environments. It achieves this through the use of orthogonal frequency-division multiple access (OFDMA) and other technologies.

OFDMA allows for the simultaneous transmission of data to multiple devices, reducing congestion and improving overall network efficiency.

This technology is particularly useful in environments with many connected devices, such as homes and offices.

The 802.11be standard, also known as Wi-Fi 7, is the next generation of WiFi technology and is currently in the development stage. It promises even faster speeds and lower latency than 802.11ax.

It's expected to be released in the near future and will likely be backward compatible with 802.11ax devices.

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In the UK, the rules for using the 5 GHz band are similar to those in Europe, except for a few key differences. The UK's Ofcom regulations allow for unlicensed use of the 5.725–5.850 GHz frequency range without the need for DFS, and the SRD maximum mean e.i.r.p is 200 mW instead of 25 mW.

Additionally, the UK allows for unlicensed use of the 5.925–6.425 GHz frequency range indoors with an SRD of 250 mW.

The European standard EN 301 893 covers 5.15–5.725 GHz operation and has been adopted as of 23 May 2017.

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In the United States, the FCC began requiring devices operating in the 5.250–5.350 GHz and 5.470–5.725 GHz bands to employ dynamic frequency selection (DFS) and transmit power control (TPC) capabilities in 2007.

The FCC further clarified the use of channels in the 5.470–5.725 GHz band in 2010 to avoid interference with TDWR, a type of weather radar system.

These restrictions are now referred to collectively as the Old Rules.

In the United Kingdom, the Ofcom regulations for unlicensed use of the 5 GHz band are similar to Europe, except that DFS is not required for the frequency range 5.725–5.850 GHz.

The UK allows for unlicensed use of the 5.925–6.425 GHz band, but only indoors with a Specific Radio Device (SRD) of 250 mW.

European standard EN 301 893 covers 5.15–5.725 GHz operation and has been adopted as of 23 May 2017.

The UK has also opened up the 6 GHz band for use.

Here are the 60 GHz WiGig channels available in the UK:

In the UK, 2.4 GHz radio use is also available, as well as high-speed multimedia radio and IEEE 802.11 Layer 2 – Datagrams.

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WiFi bandwidth and channel options are crucial for a stable and efficient wireless network. The 2.4 GHz band offers 14 channels, separated by 5 MHz, but with a bandwidth of 22 MHz, resulting in channel overlap.

For optimal performance, it's essential to select non-overlapping channels. According to the table, there are five combinations of available non-overlapping channels: 1, 6, 11, 2, 7, 12, 3, 8, 13, 4, 9, 14, 5, 10, and 4, 9, 14.

Using the correct channel configuration can significantly improve your WiFi network's performance.

WiFi channels are separated by 5 MHz, but have a bandwidth of 22 MHz, resulting in overlap and limiting the number of non-overlapping channels to three.

This means that if you have multiple access points in close proximity, you're only likely to have a few options for non-interfering channels. For example, one possible combination is channels 1, 6, and 11.

In fact, the most widely used set of channels is often channel 6, which is also the default setting for many WiFi routers, making the set of channels 1, 6, and 11 a common choice.

Using only two channels can still provide good performance, but it's best to keep them as far apart as possible to minimize interference. And if you're using WiFi equipment with IEEE 802.11n, you have the option to use a 40 MHz bandwidth, but this reduces the number of available channels.

The 802.11n standard actually mentions 40 MHz bandwidth, which is a bit different from the 22 MHz per channel bandwidth usage shown in the picture.

The 2.4 GHz band is a crowded space, but using channels 1, 6, or 11 can help minimize interference.

You'll get the most speed with bonded channels, but modern routers often ignore the traditional 1/6/11 rule and use the best channel available.

The 5 GHz band is wider, with 30 channels to choose from, but 18 of them are used by radar, making them less ideal for speed.

For 5 GHz, use lower channels 36, 40, 44, or 48, or upper channels 149, 153, 157, 161, 165, 169, or 176.

If you're using an 80 MHz channel width, stick with the 36-48 range or 149-161 range to avoid hogging the same channels as your neighbors.

Here's a breakdown of the best channel ranges for different widths:

* Half of these channels are used by radar, so the router may throttle back to 80 MHz.

For 6 GHz Wi-Fi, you have 59 channels to choose from, but it's recommended to stick with the Preferred Scanning Channels for Wi-Fi 6E and Wi-Fi 7 devices to connect quickly.

NETGEAR's Nighthawk RS700S Wi-Fi 7 router uses channel 69, but you can also use bonded channels like 33-93 (channel 63) or 65-93 (channel 79) for great results.

Discover more: Is Wifi 7 Backwards Compatible

Using a Wi-Fi analyzer app is a great way to visualize your network and identify potential issues. The app will show you a graph representing channels and signal strength.

The app defaults to the 2.4 GHz band, but you can switch to the 5 GHz landscape by clicking on a small button at the bottom. Unfortunately, the 5 GHz data doesn't show channel width, only primary channel use and strength.

Switching to the Android app gives you more information, including specific frequencies, primary channels, channel widths, and bonded channels. The Access Points tab is particularly useful, as it shows you exactly how Wi-Fi networks consume multiple channels.

You might be surprised to learn that changing channels doesn't always work, especially if multiple networks are using the same bonded channel. The app will show you which bonded channels are in use, and it's often the case that the best bonded channels are already occupied.

One thing to keep in mind is that the 2.4 GHz band is often more crowded, so you may get better speeds using the 5 GHz range. However, this can vary depending on your specific situation, so it's worth experimenting to see what works best for you.

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WiFi Band Steering and Splitting is a technique used to improve network performance by automatically directing devices to the best available wireless band. This can be particularly useful in environments with a mix of 2.4GHz and 5GHz devices.

By using WiFi Band Steering, networks can reduce congestion and improve overall throughput. In fact, some WiFi routers can automatically switch devices between bands to optimize performance.

For example, a network with a high number of devices in the 2.4GHz band may use WiFi Band Steering to direct some devices to the 5GHz band, which is less crowded and can provide faster speeds. This can be especially useful in busy office environments or homes with many wireless devices.

The 2.4 GHz band is best for devices that don't consume lots of data, such as smart speakers and thermostats.

The 5 GHz band is best for devices that require high-speed connections, like video streaming and online gaming.

Here's a summary of the key differences between the three frequencies:

Router manufacturers now boost the amplification of 5 GHz radios for better penetration, making it a better choice for long-range connections.

Wi-Fi bands are split into several different frequencies, each with its own unique characteristics and uses. The most widely used band is the 2.4 GHz band, which can carry a maximum of three non-overlapping channels and is used by 802.11b, g, and n variants.

The 5 GHz band, also known as the 5.8 GHz band, provides additional bandwidth and is used by 802.11a and n variants. It can carry up to 23 non-overlapping channels and is preferred by many due to the number of channels and the bandwidth available.

The 2.4 GHz band is widely used by many other non-licensed items, including microwave ovens, Bluetooth, and other wireless communications applications. In contrast, the 5 GHz band encounters less interference, making it a popular choice for Wi-Fi networks.

The 900 MHz band is not internationally agreed and has different sub-bands allocated in different regions, resulting in no global channel plan. The Citizens Broadband Radio Service (CBRS) in the USA has allocated a 5 MHz band gap to prevent interference spilling out of the band.

Here is a summary of the main Wi-Fi bands:

The 5 GHz band is being utilized by Wi-Fi 6E, which accesses the 6 GHz band, enabling channel bandwidths of 20, 40, 80, and 160 MHz.

Wi-Fi frequency bands are a crucial aspect of wireless networking, and understanding them is essential for setting up and optimizing your WLAN.

The ISM bands, which include the 2.4 GHz and 5 GHz bands, are internationally agreed upon and can be used without a transmitting license. These bands are widely used for Wi-Fi, but also for other applications like microwave ovens and Bluetooth.

The 2.4 GHz band is the most widely used, carrying a maximum of three non-overlapping channels, and is often used by devices like microwave ovens and Bluetooth. The 5 GHz band, on the other hand, provides additional bandwidth and can carry up to 23 non-overlapping channels.

Here's a summary of the main ISM bands used for Wi-Fi:

The 2.4 GHz band has 14 available channels, each with a specific frequency range. Here's a list of the channel numbers and their corresponding frequencies:

DFS for 5GHz channels involves using specific channels that require a special use case called DFS. These channels are 5.25~5.35GHz (Ch52~64) and 5.47~5.725GHz (Ch100~140).

To use these channels, you must have your radio licensed as being DFS compliant and follow the DFS protocol, which detects and moves away from a detected user on the channel.

The FCC website has extensive information about DFS, which you should consult for more details.

The 3.6 GHz WiFi band is a relatively new and less crowded frequency band compared to the 2.4 GHz band. It offers a range of channel options, with a total of eight 5 MHz channels, four 10 MHz channels, or two 20 MHz channels.

The 3.6 GHz WiFi band operates between 3.655 and 3.695 GHz, with a 40 MHz band available. This band can be divided into eight 5 MHz channels, four 10 MHz channels, or two 20 MHz channels.

Here's a breakdown of the channel options for the 3.6 GHz WiFi band:

Note that the channel centre frequency depends on the bandwidth used, which is why the centre frequencies are different for various channels.

The 5 GHz band is a popular choice for Wi-Fi networks, offering faster speeds and less interference compared to the 2.4 GHz band.

This band is often preferred due to its higher frequency, which results in lower equipment costs and reduced interference from other devices.

The 5 GHz band can carry up to 23 non-overlapping channels, providing more bandwidth and a higher number of channels than the 2.4 GHz band.

However, it's worth noting that the 5 GHz band has some restrictions, particularly in Europe and Japan, where some channels are only available indoors.

Here's a breakdown of the 5 GHz Wi-Fi channels and frequencies in different regions:

Keep in mind that there are additional regional variations for countries including Australia, Brazil, China, Israel, Korea, Singapore, South Africa, Turkey, and more.

Low Power Indoor operation is a specific type of WiFi use that's limited to indoor environments. Access points in this mode are capped at a maximum EIRP of 30 dBm and a maximum power spectral density of 5 dBm/MHz.

There are four U-NII bands that support LPI operation: U-NII-5, U-NII-6, U-NII-7, and U-NII-8. Each band has its own set of channels, ranging from 20 MHz to 320 MHz.

Here's a breakdown of the channels available in each band:

Partial channels are allowed to span UNII boundaries, which is permitted in 6 GHz LPI operation.

In the US, 6 GHz low-power indoor channels are available for use in indoor environments, with specific channels allocated for each U-NII band.

The U-NII-5 band has 24 channels available for 20 MHz, 12 for 40 MHz, 6 for 80 MHz, 3 for 160 MHz, and 1.5 for 320 MHz.

The U-NII-6 band has 5 channels available for 20 MHz, 2.5 for 40 MHz, 1.25 for 80 MHz, 0.5 for 160 MHz, and 0.25 for 320 MHz.

The U-NII-7 band has 17.5 channels available for 20 MHz, 8.75 for 40 MHz, 4.25 for 80 MHz, 2.25 for 160 MHz, and 1.125 for 320 MHz.

The U-NII-8 band has 12.5 channels available for 20 MHz, 5.75 for 40 MHz, 2.5 for 80 MHz, 1.25 for 160 MHz, and 0.125 for 320 MHz.

Here's a summary of the available channels for each band:

Access points operating in indoor environments are limited to a maximum EIRP of 30 dBm and a maximum power spectral density of 5 dBm/MHz.