Operation Manual

Standards for the Throughput Rate
FRITZ!Box Fon WLAN 7570 vDSL 121
Range The range within a WLAN is highly dependent on the follow-
ing factors:
 the WLAN adapter used
 the structural conditions
 the amount of radio traffic on the same frequency
band. Other WLAN networks, microwave ovens or
Bluetooth transmitters (mobile telephones) may be
active.
IEEE 802.11a Because this standard works exclusively in the seldom
used 5-GHz range, it offers the opportunity to transmit data
relatively free of interference from external influences.
WLAN adapters that support 802.11a are much less com-
mon that devices that work in accordance with the
802.11b/g standard.
IEEE 802.11b With a maximum throughput rate of 11 Mbit/s, this is the
oldest standard for radio networks. Older WLAN adapters of
the first generation can communicate with the FRITZ!Box
using 802.11b. However, if the WLAN adapter supports
newer standards such as 802.11g, the latest standard
should be used.
IEEE 802.11g This is currently the most common WLAN standard. It com-
municates with a maximum of 54 Mbit/s gross in the 2.4-
GHz frequency range (ISM) and guarantees broad compati-
bility with many WLAN devices.
However, due to heavy use of the 2.4-GHz range, interfer-
ence is more common than in the less-used 5-GHz range.
IEEE 802.11n This standard allows for high throughput rates and ranges.
The FRITZ!Box supports 802.11n in the 2.4-GHz frequency
band, or, if desired, also in the 5-GHz frequency band. Mod-
ulation processes and antenna techniques like MIMO (Mul-
tiple Input, Multiple Output) use the entire frequency band
available more effectively than the older standards.
The use of the 802.11n standard—and thus the availability
of higher throughput rates—is possible only if the WLAN
connection is secured using the WPA2 security mechanism
(AES-CCMP).