User Manual

Table Of Contents
Chapter 4 - Operation and Administration BTS Menu
BreezeMAX Extreme 81 System Manual
The available DFS algorithm (according to the selected Band Name) are:
ETSI/FCC: The algorithm searches (passive listening) for radar signals
according to relevant ETSI or FCC regulations. To increase the probability of
radar detection for compliance with the relevant regulations, additional silence
zone is added to the uplink at the expense of slightly reduced throughput in
the downlink. This means that although the specified DL-UL Ratio is 60-40,
the actual DL-UL Ratio is 40-60 in ETSI and 45-55 in FCC (where the
additional UL bandwidth is dedicated to “silence” zone).
Normal ETSI/Normal FCC: The algorithm searches for radars according to
relevant ETSI or FCC regulations. However, the DL/UL ratio is not affected
(probability of detection is lower than required by the relevant regulations).
Table 4-4: Supported DFS, 4.9 GHz Units
Band Name Supported DFS
4.9 GHz Universal None
4.9 GHz FCC None
4.9 GHz Japan A None
4.9 GHz Japan A None
5.3 GHz ETSI ETSI
5.2 GHz ETSI None
5.2 GHz FCC None
5.3 GHz FCC FCC
5.1 GHz FAA None
Table 4-5: Supported DFS, 5.4 GHz Units
Band Name Supported DFS
5.4 GHz Universal None
5.9 GHz Universal None
5.4 GHz ETSI ETSI
5.8 GHz ETSI ETSI
5.4 GHz FCC FCC
5.8 GHz FCC None
5.4 GHz Australia A Normal FCC
5.4 GHz Australia B Normal FCC