Radio Channel

Wireless / Radio Channel

The "Radio Channel" page contains settings for the wireless radio network of the FRITZ!Box. You also receive information on other wireless networks in the vicinity of the FRITZ!Box. Using this information you can detect radio channels with a lower load, on which higher throughput rates can be achieved.

Radio Channel Settings

The radio channel settings define which wireless LAN channel the FRITZ!Box uses and include additional settings for the wireless network of the FRITZ!Box. For instance, you can set a certain wireless standard or reduce transmitter power.

Defining the Type of Configuration

The Wi-Fi channel settings can be configured in two ways:

Set Wi-Fi channel settings automatically (recommended) The FRITZ!Box checks the Wi-Fi environment to automatically select the optimum Wi-Fi channel settings.
Adjusting the Wi-Fi Channel Settings If you select this option, you can select the radio channel yourself, and configure additional settings like reducing transmitter power.


Comply with the following rules if you select the radio channel yourself:

  • Select a channel with as little interference as possible, or select "Auto channel" so that the FRITZ!Box automatically sets the Wi-Fi channel best suited for transmission.
  • Many wireless devices support only channels 36 through 48 in the 5-GHz band.
  • When a channel between 52 – 140 is used in the 5-GHz range, the FRITZ!Box checks at regular intervals whether the radio channel used is also used by a higher priority radar source (for instance, weather radar). If higher priority radar is detected, the FRITZ!Box switches channels automatically. In this case wireless devices may lose their connection to the FRITZ!Box.

Additional Settings

The following settings are available if you selected "Adjust Wi-Fi channel settings" in the user interface. To view the settings, click on "Additional Settings" under "Adjust Wi-Fi channel settings".

2.4-GHz and 5-GHz Wireless Standard

The Wireless 802.11 standard has undergone further development step by step. As a result there are various 802.11 standards, including 802.11n and 802.11ac. If you select all standards, you can connect any wireless device with the FRITZ!Box, and each wireless device can automatically use the fastest standard it supports.

The 802.11a (5 GHz) standard plays a special role. Wireless devices that support 802.11a are rare. Select 802.11n+a only if 802.11a devices are to connect with the FRITZ!Box.

Maximum transmitter power

Reduce transmitter power if your wireless network is to be received only within your home or apartment.

Wireless auto channel including channel 12/13 (2.4 GHz frequency band)

Only available when the "Auto channel" setting is selected for the 2.4-GHz frequency band.

Enable this setting only if all wireless devices in the wireless LAN of the FRITZ!Box can use channels 12 and 13. Some wireless devices (notebooks, for instance) cannot.

Wireless LAN coexistence enabled (2.4-GHz frequency band)

The FRITZ!Box can use 20-MHz channels and 40-MHz channels (in accordance with the Wireless N standard). If multiple wireless routers in the 2.4-GHz frequency band are transmitting on one 40-MHz channel, interference may result. To avoid such interference, enable "Wireless LAN coexistence enabled". The FRITZ!Box then switches to the 20-MHz channel whenever it detects a wireless router transmitting in a 40-MHz channel of the 2.4-GHz band.

You can disable this setting in locations with no other or only weakly transmitting wireless networks.

Optimize wireless transmission for live TV

TV transmissions based on the internet protocol (IP) will have the highest priority during data transmission.

Wireless Environment


The wireless environment of the FRITZ!Box is depicted in two graphs, one for the 2.4-GHz band and one for the 5-GHz band. Using these graphs you can detect channels with a lower load, on which higher throughput rates can be achieved.

Loading of the Current Radio Channel

The graphs show the load on the radio channels currently in use, the share of this load used by the FRITZ!Box, and the share used by other radio networks. Under the graphs you can set the period of time (between 1 minute and 7 days) for which the load is displayed.

Use of the Wireless Channels

The graphs show how the load experienced by the individual wireless channels through wireless networks in the vicinity of the FRITZ!Box. Sources of interference and frequencies occupied by a radar source are also displayed.

Wireless networks always influence several adjacent channels at the same time. This is why several radio channels used by the FRITZ!Box are displayed.