Garmin GPSMAP 188 Owner's Manual And Reference Manual

Also see for GPSMAP 188 Sounder: Declaration of conformity Declaration of conformity Owner's manual Specifications

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Garmin GPSMAP 188 Owner's Manual And Reference Manual Manual pdf 103 page image

93Appendix AUnit InstallationMounting the GPSMAP 188/188C/238 Sounder UnitThe GPSMAP 188/188C/238 Sounder’s compact, waterproof case is suitable for mounting inexposed locations or at the nav station. The unit comes with a gimbal bracket that can be used forsurface or overhead mounting. When choosing a location for the display unit, make sure you considerthe following conditions:• There should be at least a 3” (5 cm) clearance behind the case to allow connection of the antenna(external antenna only), power/data cables.• The mounting surface should be heavy enough to support the unit and protect it from excessivevibration and shock.• For GPSMAP 188 with a built-in internal bail mount antenna, it should be mounted in a locationthat has the clearest, most unobstructed view of the sky in all directions to ensure the best reception.Avoid mounting the unit where it will be blocked by the boat’s superstructure, a radar arch, or mast.NOTE: The temperature range for the GPSMAP 188/188C/238 Sounder is 5°F to 158°F(-15°C to 70°C). Extended exposure to temperatures exceeding this range (in storageor operating conditions) may cause failure of the LCD screen. This type of failure andrelated consequences are NOT covered by the manufacturer’s limited warranty.To install the GPSMAP 188/188C/238 Sounder unit:1. Place the mounting bracket in the desired location.2. Mark and drill the four mounting holes for the fastener you are using.3. Fasten the bracket to the surface using the appropriate fastener.4. Insert the GPSMAP 188/188C/238 Sounder into the mounting bracket. The bracket is designed for atight fit to 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 (external antenna only) to the back of the unit,making sure the locking rings are fully tightened on both connectors.,The Mounting Bracket is designed to be secured using afl at head screw. If you use a screw with a countersunkhead, you risk damaging the Mounting Bracket.OK