Specifications

Network Management
Altitude 3500 Series Access Point Product Reference Guide
156
Channel Setting The following channel setting options exist:
User Selection—If selected, use the drop-down menu to
specify the legal channel for the intended country of
operation. The drop-down menu is not available if this
option is not selected.
Automatic Selection—When the access point is booted,
the access point scans non-overlapping channels listening
for beacons from other access points. For 802.11b, it
scans channels 1, 6, and 11. For 802.11a, all channels are
non-overlapping. After the channels are scanned, it will
select the channel with the fewest access points. In the
case of multiple access points on the same channel, it will
select the channel with the lowest average power level.
Select the Exclude Channels button to display a screen
used to prohibit 802.11a or 802.11b/g channels from
operating with this radio. When channel exceptions are
defined, the access point skips the channels specified.
When the Automatic Selection feature is enabled, up to 3
separate channels can be excluded. Imported and
exported configurations retain their defined exception list
configurations. The channels selected for exclusion display
beneath the Uniform Spreading button. This option is
disabled by default. It’s important to note that excluded
channels do not apply to sensor scans or rogue detection
configurations. Additionally, country of operation blocks are
not impacted by the channels selected for exclusion. A
reboot is required when enabling or disabling this feature.
The Uniform Spreading option is available (and is the
default setting for the 802.11a radio). To comply with
Dynamic Frequency Selection (DFS) requirements in the
European Union, the 802.11a radio uses a randomly
selected channel each time the access point is powered
on.
Antenna Diversity Specifies the antenna selection for the 802.11a radio.
Options include Primary Only, Secondary Only and Full
Diversity. The default setting is Primary. However,
Diversity can improve performance and signal reception in
areas where interference is significant and is
recommended when two antennas are supported.
Power Level Defines the transmit power of the 802.11a or 802.11b/g
antenna(s). The values are expressed in dBm and mW.
802.11 b/g mode Specify b only, g only or b and g to define whether the
802.11b/g radio transmits in the 2.4 GHz band exclusively
for 802.11b (legacy) clients or transmits in the 2.4 Ghz
band for 802.11g clients. Selecting b and g enables the
Altitude 35xx to transmit to both b and g clients if legacy
clients (802.11b) partially comprise the network. Select
accordingly based on the MU requirements of the network.
This parameter does not apply to Altitude 35xx 802.11a
radios.