Gasboy Fuel Point Ground Antenna - Manual (Page 20)

Installation Ground Antenna Used for Gate Control
Page 16 MDE-4530 Fuel Point Ground Antenna Installation Instructions · November 2005
Ground Antenna Used for Gate Control
Gate applications can use any of the installation methods described previously in the Installing
A Fuel Point Ground Antenna For Fueling section. When not using Surface Mount, the
installation should include pavement markings or other alternate methods to ensure that the
vehicles are routed over the ground antenna.
Locating and Installing the Fuel Point Ground Antenna
1 Mark the ground antenna position, normally centered in the lane leading to the gate. A
single ground antenna is good for lanes up to 12 feet wide.
Note: For Direct Buried and Sealed applications, ensure that the pavement is stable and at
least 3 to 4 inches thick. If the pavement is unstable, the ground antenna location should
be excavated and repaired before proceeding.
Note: For Surface Mount ground antenna on macadam, order optional Macadam Surface
Mount Kit C07365 in addition to the C07364 Surface Mount Kit.
Figure 3-7 Conduit and Junction Box Detail
2 Calculate the minimum distance between the gate and ground antenna by measuring the
distance between the front of the vehicle to the G-Ring mounting location and adding 10 feet
(clearance between gate and vehicle). If this dimension varies between vehicles, use the
greater distance for your calculation.
For optimum operation, the vehicle’s G-Ring should pass directly over the ground antenna.
For vehicles with properly installed rings (36 inches maximum height above ground and G-
Ring spaced minimum of 1 inch from a solid metal surface), the G-Ring can be a maximum of
20 inches off center. For Flush Mount J-Box or ground antenna direct buried and sealed,
painting a center line will help align vehicles with the ground antenna. Using the Surface
Mount technique will provide this visual aid.
Ground antenna installation is the same as described previously in the Installing A Fuel Point
Ground Antenna For Fueling section, except that the lead-in cable will be routed to a roadside
junction box as shown in Figure 3-7 .
Successful installation requires the special Fuel Point ground antenna
manufactured by Gasboy and careful attention to the instructions that
follow. Do not try to use the loop detector supplied with the gate
controller or the manufacturer’s entrance loop instructions.
IMPORTANT INFORMATION