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Max TX Power Level – For each radio, select the appropriate Tx power level from the Max TX
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Power Level drop-down menu. The values in the Max TX Power Level drop-down is in dBm
(dBm is an abbreviation for the power ratio in decibel (dB) of the measured power referenced to
one milliwatt). If Dynamic Radio Management (DRM) was enabled on the DRM screen, this
option is read-only.
RX Diversity – For each radio, select Alternate for the best signal from both antennas, or Left or
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Right to choose either of the two diversity antennas. The default and recommended selection is
Alternate. If only one antenna is connected, use the corresponding Left or Right diversity setting.
Do not use Alternate if two identical antennas are not used.
TX Diversity – For each radio, select Best for the best signal from both antennas, or Left or Right
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to choose either of the two diversity antennas. The default selection is Best, which maximizes
performance for most clients. However, some clients may behave oddly with Tx Diversity set to
Best. Under those circumstances, it is recommended to use either Left or Right for Tx Diversity. If
only one antenna is connected, use the corresponding Left or Right diversity setting. Do not use
Best if two identical antennas are not used.
Operational Rate Set – For each radio, select the data rate that clients can operate at while
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associated with the AP: 1, 2, 5.5, 6, 9, 11, 12, 18, 24, 36, 48, or 54 Mbps for 11b+11g modes and 6, 9,
12, 18, 24, 36, 48, or 54 Mbps for 11a mode. The Best data rate allows the Wireless AP to select
the best data rate automatically.
Basic Rates – Select the data rates that must be supported by all stations in a BSS: 1, 2 or 1, 2, 5.5,
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and 11 Mbps.
Preamble – Select a preamble type for 11b-specific (CCK) rates: Short, Long, or Auto. The
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recommended value is Auto. Select Short if you are sure that there is no pre-11b AP or a client in
the vicinity of this AP. Select Long if compatibility with pre-11b clients is required.
Protection Mode – Select a protection mode: None, Auto, or Always. The default and
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recommended setting is Auto. Select None if 11b APs and clients are not expected. Select Always
if you expect many 11b-only clients.
Protection Rate – Select a protection rate: 1, 2, 5.5, or 11 Mbps. The default and recommended
●
setting is 11. Only reduce the rate if there are many 11b clients in the environment or if the
deployment has areas with poor coverage. For example, rates lower than 11 Mbps are required to
ensure coverage.
Protection Type – Select a protection type: CTS Only or RTS CTS. The default and
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recommended setting is CTS Only. Select RTS CTS only if an 11b AP that operates on the same
channel is detected in the neighborhood, or if there are many 11b-only clients in the environment.
Min Basic Rate – For both radios, select the minimum data rate that must be supported by all
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stations in a BSS: 1, 2, 5.5, or 11 Mbps for 11b and 11b+11g modes. Select 1, 2, 5.5, 6, 11, 12, or 24
Mbps for 11g-only mode. Select 6, 12, or 24 Mbps for 11a mode. If necessary, the Max Basic Rate
choices adjust automatically to be higher or equal to the Min Basic Rate. If both Min Basic Rate
and Max Basic Rate are set to an 11g-specific (OFDM) rate, (for example, 6, 12, or 24 Mbps) all
basic rates will be 11g-specific.
Max Basic Rate – For both radios, select the maximum data rate that must be supported by all
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stations in a BSS: 1, 2, 5.5, or 11 Mbps for 11b and 11b+11g modes. Select 1, 2, 5.5, 6, 11, 12, or 24
Mbps for 11g-only mode. Select 6, 12, or 24 Mbps for 11a mode. If necessary, the Max Basic Rate
choices adjust automatically to be higher or equal to the Min Basic Rate. If both Min Basic Rate
and Max Basic Rate are set to an 11g-specific (OFDM) rate, (for example, 6, 12, or 24 Mbps) all
basic rates will be 11g-specific.
Max Operational Rate – Select the maximum data rate that clients can operate at while
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associated with the AP: 1, 2, 5.5, or 11 Mbps for 11b-only mode. Select 1, 2, 5.5, 6, 9, 11, 12, 18, 24,
36, 28, or 54 Mbps for 11b+11g or 11g-only modes. Select 6, 9, 12, 18, 24, 36, 48, or 54 Mbps for 11a
Summit WM20 User Guide, Software Release 4.2
Modifying Wireless AP Settings
67
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