Checking The Combiner Installation; Checking The Antenna Installation - Zte ZXMW NR8120A Maintenance Manual

The protection angle of the antenna's lightning rod must be less than 45°. In areas
with high mountains or frequent thunderstorm, the protection angle of the antenna's
lightning rod must be less than 30°.
5. Verify that the ODU's grounding cable is properly connected.
6. Verify that the waterproof clay and tape between the Intermediate Frequency (IF) cable
and the ODU are reliably sealed.
– End of Steps –

1.3.3 Checking the Combiner Installation

This procedure describes how to check the combiner installation, to ensure that the
combiner can operate properly and well cooperate with other devices.
Steps
1. Verify that the combiner is fastened to the antenna firmly and the four screws are
secured.
2. Verify that the combiner is within the protection range of the lightning rod.
The protection angle of the antenna's lightning rod must be less than 45°. In areas
with high mountains or frequent thunderstorm, the protection angle of the antenna's
lightning rod must be less than 30°.
3. Verify that the combiner does not have water leakage.
– End of Steps –

1.3.4 Checking the Antenna Installation

This procedure describes how to check the antenna installation, to ensure that the antenna
can operate properly and well cooperate with other devices.
Steps
1. Verify that the installation position and direction of the antenna meet the engineering
design requirement.
SJ-20150804150350-006|2015-09-17 (R1.0)
Note:
Note:
Chapter 1 Routine Maintenance
1-9
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