Alignment With Agc Voltage - Nokia MetroHopper User Manual

Tighten the screws
Figure 5.
4.8

Alignment with AGC voltage

In order to obtain maximum alignment accuracy, Nokia MetroHopper can be fine
aligned also by measuring the AGC (Automatic Gain Control) voltage which is
inversely proportional to the input level of the signal received from the radio hop.
Alignment with AGC voltage can be performed during commissioning. For more
information, refer to Commissioning and Maintenance document.
To align by measuring AGC voltage:
1.
2.
20 (26) © Nokia Networks Oy
Attaching the radio section
Connect a DC voltage meter to the AGC connector via an adapter or a cable
with BNC connector (male).
Loosen the locking screws to approximately 10 Nm.
Installation
DN99592289
Issue 2-1 en