User Manual

BTS Sector Configurations
PRELIMINARY
SC 4812ETL BTS Optimization/ATP
08/15/2000
1-22
Sector Configuration
There are a number of ways to configure the BTS frame. Table 1-4
outlines the basic requirements. For more detailed information also see
Table 1-5 and Figure 1-7. When carrier capacity is greater than two, a
2:1 cavity combiner must be used. For one or two carriers, bandpass
filters or cavity combiners may be used, depending on sectorization and
channel sequencing.
Table 1-4: BTS Sector Configuration
Number of
Carriers
Number of
Sectors
Channel Spacing Filter Requirements
1 3 N/A Bandpass Filter or Cavity Combiner (2:1)
2 3 Non–adjacent Bandpass Filter, Cavity Combiner (2:1)
2 3 Adjacent Bandpass Filter (preferred), Cavity Combiner (2:1)
The matrix in Table 1-5 shows a correlation between the various sector
configurations and BBX cards.
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