FRITZ!WLAN USB Stick 37
6.3 Frequency Range
WLAN uses the frequency range around 2.4 GHz in the ISM
band or, alternatively, the frequency range at 5 GHz.
With the FRITZ!WLAN USB Stick you can use the 2.4-GHz
fre
quency band.
A WLAN in the 2.4-GHz frequency band works in the same
band
as Bluetooth, DECT, microwave devices, video bridg-
es and baby monitors. This means that interference may
occur
within WLANs operated in the vicinity of such devic-
es. Generally the only adverse effects are to the transmis-
sion rate; aborted connections and data losses are rare.
In the 2.4-GHz frequency range the European regulation
authorit
ies have designated 13 channels for WLAN. One
chann
el has a bandwidth of 20 or 40 MHz.
Channels located directly next to each other may overlap
and r
esult in mutual interference. For instance, if several
WLANs are operated close to each other in the 2.4-GHz fre-
quency range, a distance of at least five channels should
b
e
left empty between each two channels used. This
means that if channel 1 is selected for one WLAN, the
cha
nnels 6 through 13 can be selected for a second
WL
AN. This maintains the minimum distance between
channels.
Should interference in a WLAN persist, the first step
sh
ould be to select a different channel. If your WLAN ac-
cess point is equipped with an autochannel function, you
ca
n automatically have it search for the WLAN channel in
your frequency range that is subject to the least interfer-
ence. For more instructions, see the section “WLAN Con-
nection Is Not Established” from page 44.
To Next Page
Loading...
Need help?
General
Weight and Dimensions
