WLAN Radio Network Name (SSID)
FRITZ!Box
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WLAN Radio Network Name (SSID)
The factory settings of FRITZ!Box include a value of
“FRITZ!Box Fon WLAN 7170” preset for the SSID (Service Set
Identifier).
If an additional device with the same network name is lo-
cated in the vicinity, it can occur that the WLAN adapter at-
tempts to register there. Therefore you should change the
SSID as soon as possible.
8.3
Frequency Range
WLAN uses the frequency range around 2.4 GHz in the ISM
band, or, alternatively, the area around 5 GHz.
2.4-GHz Range
WLAN in the 2.4-GHz frequency band works in the same ar-
ea as Bluetooth, microwave devices and many cordless
telephones. This means that interference may occur within
WLANs operated in the vicinity of such devices. Generally
the only adverse effects are to the transmission rate; abort-
ed connections and data losses are rare.
In Europe, 13 channels are provided for WLAN in the 2.4 GHz
range. One channel has a bandwidth of 22 MHz. A 5-MHz in-
terval is left empty between adjacent channels. That means
that channels located directly next to each other may overlap
and result in mutual interference. If several WLANs are oper-
ated within a small space, a distance of at least five channels
should be left empty between each two channels used. For
instance, if channel 1 is selected for one WLAN, the channels
7 through 13 can be selected for a second WLAN. This main-
tains the minimum distance between channels.
WLAN
Autochannel
With the WLAN Autochannel function, the FRITZ!Box auto-
matically searches for the channel subject to the least inter-
ference. Should problems with interference persist despite
this function, try to identify the source of interference and
switch it off manually.
Additional tips on interference in the WLAN radio network
are presented in the section “Eliminating Disturbances
Caused by Another WLAN Radio Network” from page 85.
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