The GIS206-2 main enclosure is attached to the terminal building or other support precisely lined up with, and perpendicular to, the extension of the aircraft J line or center line as that line would approach the terminal building or support. This aligns the laser portion of the RLG GIS206-2 with the azimuth center of the parking aircraft. The height above the tarmac should be determined such that the seven inch high alphanumeric display and azimuth display will be at a height for comfortable viewing by both the pilot and the copilot whether in the shortest or the tallest aircraft that will be parked.

After the RLG GIS206-2 is physically secured there is an electronic calibration procedure to ensure that the system will give the best possible performance. This results in the RLG GIS206-2 guiding the aircraft to a parking position where the nose wheel is within a six inch radius of the terminal authority dictated parking position.