Service Manual
GSM-205-423
Suggested RF configurations
31st Oct 01
Inst. 2–42
Installation & Configuration: Horizon
macro
indoor
CONTROLLED INTRODUCTION
68P02902W08-B
Configuration
for dual band
3/3/3-1/1/1
Figure 2-34 shows a suggested configuration, using two Horizon
macro
cabinets,
for dual band sector 3/3/3–1/1/1 operation, where sector 3/3/3 is EGSM900 and
sector 1/1/1 is DCS1800. This dual band configuration requires one dual band
1800 SURF and one dual band 900 SURF.
RX
RX
B
EXT
RX
RX
RX
RX
EXT
A0A1A2A
1800
OA
0B1B
2B
1800
OB
RX
RX
SECTOR 1
900
SECTOR 3
900
SECTOR 2
900
900
DDF
900
DDF
RX
ANT
RX
FEED
THRU
ANT
RX
TX
TXTX
900
0B
RX
RX
RX
ANT
RX
RX
ANT
900
DCF
1800
TDF
SECTOR 1
1800
SECTOR 2
1800
SECTOR 3
1800
900
OA
0B
Tx1Rx0A
DUAL
BAND
TDF
Rx1A
Rx2A
2
0
1
B
EXT
RX
RX
RX
RX
EXT
A0A1A2A1B
2
0
1
2B
RX
ANT
900
RX
RX
ANT
1800
Tx0
Tx2
RX
ANT
Figure 2-34 Two cabinet dual band sector 3/3/3-1/1/1
Unused SMA connectors must be fitted with 50 ohm terminating loads.