
4 Chapter 1 - Introduction
To install the brackets for mounting:
1. Slide the nuts through the openings along the sides of the receiver.
2. Place the bracket along the receiver and insert the thumbscrews so they screw into the
nuts.
3. Secure the brackets in the location of choice.
Antenna
Placement of the antenna is crucial to the system’s operation. The GPS engine inside the antenna
computes a position based upon measurements from each satellite to the phase center of the
antenna. Mount the antenna at the desired location of reference. When choosing a mounting loca-
tion, make certain that there is a clear view of the sky. This will ensure that GPS satellites are not
masked by obstructions, potentially reducing system performance.
Mount the antenna on, or as close to, the center point of measurement of the vehicle. The antenna
can be mounted magnetically, on the vehicle’s surface, or on a pole.
Magnetic Mount
The magnetic mount can be secured by screwing it into the bottom of the antenna and mounting it to
any metal surface. A metal disc and foam adhesive is included with each magnetic mount. Use the
foam adhesive to bond the metal disc to the desired mounting location if there is no metal surface
available. To use the metal disc and foam adhesive:
1. Clean and dry the mounting surface on the vehicle.
2. Remove the backing from one side of the foam adhesive and press the metal plate onto the
mounting surface on the vehicle.
3. Remove the backing from the other side of the foam adhesive.
4. Press the metal plate onto the mounting surface of the vehicle.
5. Apply firm pressure to ensure good adhesion.
6. Place the antenna on top of the metal disc.
Surface Mount
As an alternative to the magnetic mount, the antenna is easily attached to the surface with four
machine screws (not included). To surface mount the antenna:
1. Photocopy the bottom of the antenna and use it as a template to plan the mounting hole
locations.
WARNING! Make sure the photocopy is scaled ONE TO ONE with the mounting holes on the
bottom of the antenna!
2. Mark the mounting hole centers as necessary on the mounting surface.
3. Place the antenna over the marks to ensure that the planned hole centers agree with the
true hole centers. Adjust as necessary.
4. Use a center punch on the hole centers in order to guide the drill bit.
5. Drill the mounting holes with a 3/16-inch /4.7625 mm bit appropriate for the surface mount.