Operating Instructions and Installation Instructions

135
Frequency Ranges
2.4GHz or 5GHz The FRITZ!Box works in the WLAN network either in the
2.4-GHz range or in the 5-GHz range, but not parallel in
both frequency ranges at the same time.
Bandwidth In both frequency ranges you can select between channel
bandwidths of 20 MHz or 40 MHz (exception: channel 140
in the 5-GHz frequency band). The FRITZ!Box initially at-
tempts to select a channel with 40 MHz bandwidth
(throughput up to 300 Mbit/s). If this is not possible due
to interference or channels already being used by other
WLANs in the vicinity, the FRITZ!Box automatically switch-
es temporarily to a channel with 20 MHz bandwidth.
Greater bandwidth provides for higher data throughput:
Increasing bandwidths also increases the probability of
interference by wireless networks in the vicinity. Large
bandwidths reduce the frequency range available to other
wireless networks in the vicinity.
Allocation of the WLAN channels in the 2.4-GHz range:
Bandwidth (MHz) Maximum Data Throughput (Mbit/s)
20 130
40 300
Channel Frequency (GHz) Channel Frequency (GHz)
12.412 82.447
22.417 92.452
3 2.422 10 2.457
4 2.427 11 2.462
5 2.432 12 2.467
6 2.437 13 2.472
72.442