Installation Guide Part 1

NGL FX Installation Manual Rev. * 15 of 84
C H A P T E R
2
SITE PLANNING
Overview and Goals
Checkpoint Field Service personnel visit the location to perform a site survey before installation.
The initial planning stage is the appropriate time to determine site suitability, where the antenna
loops will be located (for maximum EAS protection) and the type of FX system to be installed.
Antenna Distance from Interfering Elements
Carefully execute antenna placement so environmental factors do not degrade system performance.
Reducing the chances that nearby elements could cause interfering effects before installation is
crucial. For repeatability, all measurements are given at baseline (i.e. using a standard tag type).
Figure 1.8: Distances from Interfering Elements
Note*: Figure 1.8 above shows a Shielded FX system, yet the common interfering elements and
the minimum allowable distance (from antenna to element) is the same for Unshielded FX systems.