Installation of the ADU
98-141779-G Chapter 3: Installation 3-17
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3.3.3 To install the ADU
3.3.3.1 Prerequisites
• Make sure that there is sufficient space underneath the ADU to open the service hatch.
Through this hatch you access the ADU modules for service and maintenance.
• It is important to maintain vertical orientation of the ADU center line.
• Maximum allowed cable loss 20 dB at 1950 MHz. This is to ensure optimum
performance of the system.
3.3.3.2 Installation procedure
To install the ADU, do as follows:
1. Install the mast with the mast flange and have the 4 M12 bolts ready.
2. Undo all shipping buckles, take off the wooden top and remove the casing.
3. Remove the wooden platform.
4. Attach a webbed, four-part sling with a belt to all 4 lifting brackets.
Figure 3-15: Free space for access to the service hatch
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