Reference Manual

Radio Transmission
39.2 Concepts
Base Transceiver Station (BTS), defined in the chapter "Radio
Configuration, RBS 2000 Macro".
Radio Base Station (RBS), defined in the chapter the "Radio
Configuration, RBS 2000 Macro".
Combining system and filtering is the interface between transmitters and
the antenna system. The functions of the system are:
•
Antenna system supervision support
•
RF filtering
•
Duplex filtering
The TX reference point X is defined as the point where the TX antenna
signal crosses the RBS border, that is, the connector for the antenna
feeder. See Figure 137 on page 322.
01_0467A
RBS
TX
TX
TX
Combining
system
+
filtering
X
X = TX reference point
.
.
Figure 137 TX reference point X
When the RBS comprises an antenna mounted equipment, the TX
reference point is the antenna mounted equipment part antenna
connector. See Figure 138 on page 323.
322 (485)
EN/LZT 720 0008 P2A
2001-11-28
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