User's Manual

Rev A Installation

FlexZone Wireless Gate Sensor Page 5

Antenna mounting

The supplied whip antenna is sensitive in the 360º horizontal plane, but has low sensitivity above

and below the antenna. The recommended installation location is centered on the FlexZone

processor enclosure door. The enclosure door provides the largest ground plane, which improves

the antenna’s sensitivity. Enclosure door mounting provides good sensitivity in both directions

down the fence line. Figure 6

is a cross sectional representation of the antenna pattern for the

supplied whip antenna.

It is also possible to mount the rubber whip antenna on the top of the enclosure. However, top

mounting generally results in a reduced maximum range along the fence line due to the smaller

ground plane. However, mounting the antenna on top of the enclosure provides omni-directional

coverage.

1. Locate the center of the selected mounting surface and mark the position of the mounting hole

at that point.

Figure 5 Mounting the receiver on the NIC (steps 3 & 4)

Figure 6 Cross sectional antenna coverage pattern

Note To mount the antenna on the enclosure door or on the top of the enclosure,

drill a 6.3 mm (1/4 in.) hole in the center of the mounting surface.

Note For top enclosure mounting, remove the processor circuit card from the

enclosure before drilling the mounting hole.

Note The rubber whip antenna provides a good seal when the nut is securely

tightened on the inside of the enclosure. However, a thin bead of outdoor

rated silicone can be added around the base of the antenna to provide

additional protection against water ingress.

300 m (984 ft.) nominal

low sensitivity