AVM FRITZ!WLAN USB Stick Installation, Configuration And Operation page 26

Range and Power
26 FRITZ!WLAN USB Stick – 3 The FRITZ!WLAN Control Software
a distance of at least four channels—if possible, five—should
be left empty between each two channels used. For instance,
if channel 1 is selected for one WLAN, the channels 6 through
13 can be selected for a second WLAN. This maintains the
minimum distance between channels.
WLAN channels in the 2.4 GHz range:
Channel
1
2
3
4
5
6
7
8
9
10
11
12
13
Range and Power
For line-of-sight connections without intervening walls, a
range of up to 200 m is possible. The range may be restricted
depending on the conditions at your location, the spatial cir-
cumstances and construction materials used. Radio waves
can penetrate walls or glass, but not steel. If necessary, set-
ting up an additional access point between the transmitter
and receiver can amplify the radio signal. To achieve the best
range possible, in principle it is always advisable to place
the WLAN devices as close to each other as possible. The
WLAN access point should always be in a central location
with regard to the computer connected by means of the
FRITZ!WLAN USB Stick. Whenever possible, avoid placing de-
vices behind furniture, in closets or under the desk. The ra-
dio waves of other devices that work in the ISM frequency
Frequency (MHz)
2412
2417
2422
2427
2432
2437
2442
2447
2452
2457
2462
2467
2472