Huawei BTS3802C Installation Manual page 87

Installation Manual – Antenna & Feeder System Installation
BTS3802C & RRU
I. NodeB Outdoor Installation (Building-top Installation Excluded)
Within the range of 1m~2m under the GPS antenna;
The front end connecting the NodeB.
Caution:
If the GPS feeder is not longer than 5m, its shielding covering may be grounded only at the front end
connecting the NodeB.
II. NodeB outdoor installation on building-top
In this installation mode, GPS feeder shielding covering may be grounded only at the
front end connecting the NodeB.
III. NodeB indoor installation with GPS antenna and NodeB antenna installed
on the same tower or metal mast
When the outdoor GPS feeder is longer than 20m:
Within the range of 1m~2m under the GPS antenna;
Within 1m range of the mast or of where the GPS feeder is led from the tower
platform;
At the outer side of the feeder window where the GPS feeder enters the
equipment room (connecting to outdoor protection grounding bar).
Close to the indoor protection grounding bar after it enters the equipment room.
When the outdoor GPS feeder is not longer than 20m:
Within the range of 1m~2m under the GPS antenna;
At the outer side of the feeder window where the GPS feeder enters the
equipment room (connecting to outdoor protection grounding bar).
Close to the indoor protection grounding bar after it enters the equipment room.
Installing GPS Antenna & Feeder System
3-13
Chapter 3