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Frequency Ranges
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 attempts
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 switches temporarily to a chan-
nel with 20 MHz bandwidth. Greater bandwidth provides for
higher data throughput:
Bandwidth (MHz)
20
40
Increasing bandwidths also increases the probability of inter-
ference by wireless networks in the vicinity. Large bandwidths
reduce the frequency range available to other wireless net-
works in the vicinity.
Allocation of the WLAN Channels in the 2.4-GHz Range
Channel
1
2
3
4
5
6
7
Maximum Data Throughput (Mbit/s)
130
300
Frequency (GHz)
2.412
2.417
2.422
2.427
2.432
2.437
2.442
117
Channel
Frequency (GHz)
8
2.447
9
2.452
10
2.457
11
2.462
12
2.467
13
2.472
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