Alvarion WBSIac User Manual page 67

Chapter 2 - Management
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Obey Regulatory Power: Obeys the power regulations specified by each country. This would satisfy
the legally permitted maximum for the equivalent isotropically radiated power (EIRP) limits of the
selected country, based on the specified Antenna Gain (dBi). The result is that the maximum transmit
power may be less than the capability of the radio. Once activated, a refresh of the web page may be
needed to show the settings correctly.
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Antenna Gain (dBi): Represents the gain relative to an isotropic antenna. A higher antenna gain
results in the transmit power more focused towards a certain direction. When Obey Regulatory Power
is checked, the value of the antenna gain would be taken into account to limit the selectable transmit
power, such that the EIRP limits of the country are satisfied.
2.4.5.1.2 Advanced Settings
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Distance Optimization (Auto-ACK Timeout): Determines the distance of the connected station
from the AP and automatically adjusts the ACK timeout. This is disabled by default. If the stations are
positioned over a wide area at different distances from the AP, it is recommended to disable this
option to prevent the ACK timeout from fluctuating widely.
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Distance (meters): Specifies the distance between the AP and the station, if the previous option is
unchecked. Min: 300, Max: 12000 (80MHz), 24000 (40MHz), 48000 (20MHz). This value may be set
to slightly more than the physical distance between the AP and the farthest station.
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Chainmask Selection: Sets the antenna port selection on the radio. For example, 2x2 means that 2
antennas are being used.
NOTE! The following options are for the device operating as an access point (AP).
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Beacon Interval: Specifies the interval between beacon transmissions by the AP, in ms. A beacon is a
frame broadcast by the AP to synchronize the wireless network. For the multiple VAP case, the
beacons are transmitted evenly within this interval. Thus, if four VAPs are created and the beacon
interval is 200 ms, a beacon is transmitted from the radio portion every 50 ms, from each VAP in a
round-robin fashion. The default value of the interval is 100 ms.
WBSIac Access Point User Ma n ua l
Figure 2-76: Advanced Settings for the Wifi Device Configuration
Network Tab
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