Senstar Corporation E7BA0300 User Manual

Rev A

Installation

FlexZone Wireless Gate Sensor

Page 5

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. 

 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

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.

For top enclosure mounting, remove the processor circuit card from the 
enclosure before drilling the mounting hole.

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

low sensitivity