Checking Antenna & Feeder System Of Gps - Huawei BTS3802C Installation Manual

Installation Manual – Antenna & Feeder System Installation
BTS3802C & RRU
Check Serial
category No.
18
19
1
2
Checking the
jumpe
3
4
4.3 Checking Antenna & Feeder System of GPS
Most of the checking items and the checking requirements of antenna & feed system
of GPS are the same as those of the antenna & feed system of mini NodeB. Here
only lists the different checking items, for other items like checking feeders, checking
jumpers, checking antennas, checking antenna stands and checking lightening
protection clips, etc. please refer to Table 4-1.
For the vertical installation, the TX-TX/TX-RX antenna vertical spacing in the same sector
should be no less than 0.2m.
When installing the directional antenna, the interval between the space diversity reception
of two RX antennas should be no less than 4m.
All jumper connectors should go through the waterproof treatment. The waterproof curve
should be made for the jumpers.
Jumpers connected to the antennas should be bound through the crossbars of the
antenna stand onto the steel frame of the tower.
A certain allowance should be left at the cutting of the binding tapes.
The bending radius of jumper should be no less than 20 times longer than the jumper
diameter.
Check item
4-4
Chapter 4 Installation Checking