User Manual

AS4000 Subscriber Terminal
Installation and Commissioning
DLP 001
605-0000-454
Draft Issue 1.3 Date 8/02/00
Page 1 of 2
SECTION 2
INSTALLING R, S, N, L, B SERIES COMMON
COMPONENTS
PREPARATORY TASKS.
1. Site Readiness
Task 1 involves verifying that your site is ready for the installation of the ST
Equipment.
Check access to the building before unloading or unpacking the equipment.
2. Site Selection
The following factors should be taken into account to determine the installation
position for the Antenna:
a) The Antenna should be installed as high as possible on the wall facing in the
direction of the CT. Mounting height should normally be 5-7 metres above
ground level.
b) Inspect the suitability of the wall structure for the installation position of the
Antenna mounting.
c) Typical acceptable structures are:-
• Secure brick walls
• Concrete cladding covered Building Blocks
• Metal / Wooden pole, with suitable bracket.
d) For efficient and reliable service it is suggested that the external mounting
location of the Antenna be chosen such that once ‘panned’ for optimum signal
level it observes the following criteria:-
• Avoid aligning the Antenna directly toward an obstruction within a distance of
15 metres from the Antenna installation point.
• Avoid obstructions such as adjacent walls or overhanging roof eaves, within
15° in the horizontal plane and 30° in the vertical plane (see Figure 14).
• Ensure adequate clearance is allowed for ‘panning’ the Antenna.
• The Antenna is capable of being ‘panned’ with at least 15° of adjustment either
side of the direction of the CT Antenna.