User manual

Chapter 2 - Managing a Single Device/Cell Performance Parameters Page
AlvariCRAFT Device Manager 147 User Manual
MHz bandwidth (Turbo mode) that support modulation levels from 1 to 5.
However, the highest modulation level supported by units with HW revision A is
modulation level 7.
2.23.6 Multicast Modulation Level (AU and BU Only)
The Multicast Modulation Level parameter defines the modulation level used for
transmitting multicast and broadcast data frames. Multicast and broadcast
transmissions are not acknowledged; therefore if a multicast or broadcast
transmission is not properly received there is no possibility of retransmitting. It is
recommended that you set a lower modulation level for broadcast and multicast
frame transmissions to increase the probability that they are received without
errors.
The Multicast Modulation Level parameter is applicable only to data frames.
Beacons and other wireless management and control frames are always
transmitted at the lowest modulation level according to the Sub-Band.
The minimum and maximum values for the Multicast Modulation Level are
defined by the Sub-Band in use. Currently, all Sub Bands support the entire
range of modulation levels, from 1 to 8, except to BreezeNET B units using a 40
MHz bandwidth (Turbo mode) that support modulation levels from 1 to 5.
However, the highest modulation level supported by units with HW revision A is
modulation level 7.
2.23.7 Burst Mode Parameters
Burst mode provides an increased throughput by reducing the overhead
associated with transmissions in the wireless medium. In a burst transmission
the inter-frame spacing is reduced and unicast data frames are transmitted
without any contention period (burst mode is not activated on
broadcasts/multicasts).
The Burst Mode is available only if Burst Mode is supported by the Sub-Band in
use. Currently Burst Mode is supported by all Country Codes.
In AUs and BUs with HW Revision B or lower, Burst Mode cannot be activated
when DFS is used. In AUs with HW Revision B or lower, the Burst Mode option
will be "blocked" upon trying to enable Burst Mode when DFS is enabled. This
limitation does not apply to AUs with HW Revision C.
In all units with HW Revision B or lower, Burst Mode cannot be activated when
using WEP for data encryption. In units with HW Revision B or lower, 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.