Installing the Antenna and Wiring

• 1). Locate a vertical pipe or stanchion at the highest point on the boat's radar arch, cabin or cuddy to serve as a mounting point for the GPS antenna. The pipe or stanchion must be at least 8 inches tall.
  
  
• 2). Expand two hose clamps, using a screwdriver. The hose clamps must be large enough to completely encircle the pipe or stanchion and the pipe-shaped base of the GPS antenna. Slip both hose clamps around the vertical pipe or stanchion.
  
  
• 3). Position the lower of the two hose clamps 6 inches from the top of the vertical pipe or stanchion. Slip the pipe-shaped base of the GPS antenna into the clamps. Tighten the clamp around both the antenna base and the pipe securely. Position the remaining hose clamp 2 inches from the pipe. Tighten the second clamp securely around both the antenna base and pipe.
  
  
• 4). Screw the connector at the end of the coaxial cable, which comes with the antenna, into the connector on the bottom of the GPS antenna. If the GPS receiver will be located inside a wheelhouse, cabin or cuddy, drill a 1/2-inch hole in the overhead of the cabin or cuddy and the deck above the overhead.
  
  
• 5). Push the coaxial cable through the hole in the deck and through the overhead of the wheelhouse or cuddy. Pull the coaxial cable to the location selected for the GPS receiver.
  
  
• 6). Pull the coaxial cable to the GPS receiver's proposed location along a path that will not create a tripping hazard to crew or passengers. If the GPS is not mounted inside an enclosed space, push the cable through the hangers used to contain control cables. Pull the cable to the GPS receiver's location.
  
  

Installing the GPS Receiver

• 1). Place the GPS receiver mounting bracket in the preferred location. Drive the mounting screws provided with the GPS receiver through the mounting holes in the bracket, using a screwdriver.
  
  
• 2). Thread the mounting knobs loosely into the sides of the GPS receiver. Position the GPS receiver in the mounting bracket so the mounting knobs fit into the mounting slots on the mounting bracket.
  
  
• 3). Tighten the mounting knobs to secure the receiver in the mounting bracket. Insert the male pin of the coaxial cable's connector into the female connector of the receiver. Thread the connector's nut onto the threaded part of the receiver's connector.
  
  
• 4). Loosen one of the screws on the vessel's common power bus. Push the spade connector on the receiver's power lead -- the red lead interrupted by an inline fuse -- under the loosened screw. Tighten the screw snugly.
  
  
• 5). Loosen one of the screws on the boat's common ground bus. Push the spade connector on the receiver's black grounding wire under the loosened grounding screw. Tighten the screw securely. Spray the ground and power connections with spray-on electrical insulation.