Service Manual

GSM-205-423
Suggested RF configurations
31st Oct 01
Installation & Configuration: Horizon macro indoor
68P02902W08-B
CONTROLLED INTRODUCTION
Inst. 2–41
Configuration
for dual band
1/1/1-3/3/3
Figure 2-33 shows a suggested configuration, using two Horizon macro cabinets,
for dual band sector 1/1/1–3/3/3 operation, where sector 1/1/1 is EGSM900 and
sector 3/3/3 is DCS1800. This dual band configuration requires one single band
1800 SURF and one dual band 900 SURF.
SECTOR 1
900
ANT
RX
900
TDF
RX
ANT
N01 N01
B
EXT RX RX RX RX RX RX EXT
A0A1A2A0B1B2B
N02
2
ANT
RX
1800
DDF
FEED
THRU
0
ANT
RX
1800
DDF
N01
1
TX
TXTX
N02
N01
B
EXT RX RX RX RX RX RX EXT
A0A1A2A
1800
0A
0B1B
2 0
N01
1
1800
DCF
2B
1800
OB
RX RX
RX
ANT
SECTOR 3
1800
N01
SECTOR 3
900
SECTOR 2
1800
DUAL
BAND
TDF
N01
RXRX
SECTOR 2
900
ANT
900
ANT
1800
SECTOR 1
1800
Figure 2-33 Two cabinet dual band sector 1/1/1-3/3/3
Unused SMA connectors must be fitted with 50 ohm terminating loads.