Alvarion BreezeACCESS VL Release Note page 7

8. Limitations & Known Issues
•
Sensitivity may change slightly as a function of frequency (+/-2dB).
•
Transmission power accuracy is +/-1dB above 8dBm @ antenna port (typical condition). At
lower levels the accuracy is +/-3dBm, never contradicting regulations. At very low levels the
use of ATPC may cause significant fluctuations in the power level of the transmitted signal.
When operating at such low levels, it is recommended to disable the ATPC Option in the SU
and to set the Transmit Power parameter to the average Tx Power level before the ATPC was
disabled.
•
In units operating in the 5.3 GHz band, the following rule must be met for full compliance with
FCC regulations: When operating at 5270 MHz, the Transmit Power parameter in the AU, and
the Maximum Tx Power parameter in the SUs served by this AU, should not be set to a value
above "17-Antenna Gain" (The maximum allowed EIRP for 5270 MHz is 17 dBm).
•
The FTP Client IP address should not be configured with the same value as the unit's IP
address. Attempting to do so will display an error when telnet is used. No error will be raised
when SNMP is used. Note that the FTP settings are not reverted to defaults upon issuing a
"Set Full Operator defaults" command (they do revert to default after executing "Set Full
Factory Defaults").
•
The maximum number of SUs that can be served by an AU when Data Encryption is enabled
is 124. The number displayed for the Maximum Number of Associations is the value
configured for this parameter, which might be higher than the actual limit, indicated in the Show
Air Interface Parameters display.
•
In units with HW Revision B, Burst Mode cannot be activated when using WEP for data
encryption. In units with HW Revision B, the Burst Mode option will be "blocked" upon trying to
enable it when using WEP for data encryption. This limitation does not apply to units with HW
Revision C.
•
The Country Code Learning by SU feature does not function with the default ESSID (ESSID1).
•
In some cases the "Power Tables" tab under the "Air Interface" option in BreezeCONFIG may
not include the entire "Tx Power" and "Maximum Transmit Power" tables and some entries
may be missing. Using the "Refresh" button several times may resolve the problem. Also, in
HTTP://WWW.ALVARION.COM
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