Figure 14 Functional Blocks Of The 2Tx Rrh - Nokia Flexi Multiradio BTS Technical-Operating Documentation

RF Module and RRH main blocks
g
26
RX block
•
The RX block includes two 2-carrier receivers
–
Antenna filter block
•
Antenna filtering for TX and RX signals is done in the Antenna filter block
–
See the following figure for the functional blocks of the 2 TX RRH.
Figure 14 Functional blocks of the 2TX RRH
Optical IF
Optical IF
RF control
EAC
RET
DC IN
2x60 W RRH have the same functional blocks as 2x40 W RRH except that
2x60W RRH has bias-T only on Branch 1 (with ANT1) to support MHAs in AISG
mode.
Flexi Multiradio BTS Radio Module and Remote Radio
RX
TX RF PA
RX
TX RF PA
PSU
DN0951745
Head Description
RX filter
Bias-T VSWR
LNA
Det
TX filter
RF
loop
RX filter
Bias-T
VSWR
LNA
Det
TX filter
Issue: 05