ETS-Lindgren 2115 Multi-Axis Positioning Systems (MAPS) - Manual (Page 24)

24 | Installation
To make sure the MAPS is level with the antennas in the chamber and is
accurately centered in the chamber, install the mast(s). Bore sight of the MAPS
requires a five-beam laser level.
Following are the typical installation steps used to achieve bore sight for a MAPS
unit.
1. Locate and mark the center of the chamber wall opposite the range antenna mounted
in the chamber end wall. Marking may require the removal of absorber.
This applies for both rectangular and tapered chambers. In tapered chambers the
antenna is mounted in the far end of the antenna apex. In both cases the typical
installation of the antenna is parallel to the cross section of the opposite end wall.
If the range antenna is mounted elsewhere in the chamber, then the bore sight line
exists normal to the middle of the range antenna.
2. With the laser mounted on a tripod, mark the end of the bore sight line to the end wall
for reference.