Mounting the GPSMAP 130 UnitThe GPSMAP 130’s compact, waterproof case is suitable for mounting inexposed locations or at the nav station. The unit comes with a gimbal bracket thatcan be used for surface or overhead mounting. When choosing a location for thedisplay unit, make sure you consider the following conditions:• There should be at least a 2” (5 cm) clearance behind the case to allow connection of theantenna and power/data cables.• The unit should not be mounted where it is exposed to excessive temperatures forextended periods (see page 69).• You should provide adequate clearance for the G-chart cartridge cover to swing openfreely. You may have to swivel the unit to get a firm grip on the cartridge.• The mounting surface should be heavy enough to support the unit and protect it fromexcessive vibration and shock.• For flush mounting, make sure the flat panel is between 0.08” and 0.52” (2 to 13.2mm)thick to use the cam lobe built into the mounting bracket.To install the GPSMAP unit:1. Place the mounting bracket in the desired location.2. Mark and drill the four mounting holes for the fastener you are using. Note that theGPSMAP 130 may also be used with a Johnny Ray JR-400 swivel mount.3. Fasten the bracket to the surface using the appropriate fastener.4. Insert the GPSMAP 130 into the mounting bracket. The bracket is designed for a tight fitto provide additional support when swiveling the unit.5. Screw the two mounting knobs through the bracket and into the display case.6. Connect the power/data and antenna cables to the back of the unit, making sure thelocking rings are fully tightened on both connectors.68SECTIONA APPENDIXInstallation