User Manual

ADCP-75-192 • Issue D • October 2005 • Section 5: BTS Optimization
Page 5-4
 2005, ADC Telecommunications, Inc.
2.3.2 Receiver Multicoupler Setup
In the simplex configuration shown in Figure 5-2, the ETBS transmit feen is attenuated by a
30dB pad. The reverse paths are not attenuated and can provide as much as 40dB of gain. As
shown in figure 5-2, each simplex receive path (primary and diversity) is connected to two
external 6-way power dividers respectively. The 6-way power dividers will appropriately
distribute uplink receive signals up to six separate primary and diversity receivers on the base
radios.
OpenCell BIM
Duplexer
B
Duplexer
C
Duplexer
A
6:12:1 6:1
Tx Only
Rx Branch 2 Rx Branch 1
Tx 0 Rx 1 Rx 0
Tx 0 Rx 1
Rx 0
Tx 0 Rx 1
Rx 0
Figure 5-2. Receiver Multicoupler Setup