Installation Guide

V5 Node B Installation Guide
Version 1.0.5 Page 35 of 44
Step 10 Antenna Cabling - Installation
Antennae and coaxial cable should be available at the site, and are part of the construction
checklist and general assumptions.
Two antennae per Node B Radio Equipment Shelf are optimum, allowing receiver diversity and
transmit diversity (note: if option fitted), therefore two coaxial cables per Node B are needed.
Diversity can be via polarization, in which case two feeder runs to the same antenna are needed,
feeding oppositely polarised sectors in the same physical enclosure.
Cables should be properly marked to indicate what antenna the coaxial cables are to be
connected to the Node B serving the sector or area.
In the case where only one feeder / antenna is being used, this must be connected to the top
connector when viewed from the front of the Node B. The unused port shall be terminated with a
50 load.
The following installation describes the position of the antenna ports and designations.
Figure 5-15 : Antenna Connections & Routing