Garmin GMR 24 xHD Radome Installation Instructions - Page 2

center of the radome Â, and the second option is offset towards the back à to move the radar further away from the mast. • The power cable should be installed as close to the battery source as possible. ◦ If it is necessary to extend the power cable, the appropriate gauge of wire must be used (Power Cable Extensions). ◦ Incorrectly extended runs of cable may cause the radar to malfunction due to insufficient power transmission. • The device should be mounted away from heat sources such as smoke stacks and lights. • The device should be mounted at a different level than horizontal spreaders and mast crosstrees. • To avoid interference with a magnetic compass, the device should not be mounted closer to a compass than the compass-safe distance value listed in the product specifications. • Other electronics and cables should be mounted more than 2 m (6 ½ ft. ) from the radar beam path. • GPS antennas should be either above or below the radar beam path. • The device should be mounted at least 1 m (40 in. ) from any transmitting equipment. • The device should be mounted at least 1 m (40 in. ) away from cables carrying radio signals such as VHF radios, cables, and antennas. For Single Side Band (SSB) radios, increase the distance to 2 m (6 ½ ft. ). Mounting the Radar Before you mount the radar, you must review the mounting location considerations and select a mounting location. NOTE: The supplied M8 x 1. 25 x 60 threaded rods can be used o(nr emcooumnmteinndge dt)h.i c kFnoers sseusr foafc e5s toov e3r0 3m0m m(m3 /1(61 t3o/ 116 3i/1n6. i)n,. u)se longer threaded rods. 1 If you are not installing the device on a pre-drilled Garmin- compatible radar mount, use the included mounting template to drill four 9. 5 mm (3/8 in. ) mounting holes. 2 Install the locking ring and o-ring on the end of the Garmin Marine Network cable. 3 Connect the power cable to the power port À and the network cable to the network port Á. Cable Considerations It may be necessary to drill 31. 7 mm (1 ¼ in. ) holes for routing the power or network cable. The provided rubber cable grommet can be used to cover a cable installation hole. • The grommet does NOT provide a waterproof seal. To make the grommet waterproof, marine sealant must be applied. • If needed, the grommet can be trimmed to route both the power and the network cable through the same hole. • Additional cable grommets can be purchased from Garmin or a Garmin dealer. When installing the power and network cables, you should observe these considerations. • Cutting the Garmin Marine Network cable is not recommended, but a field install kit can be purchased from Garmin or a Garmin dealer if cutting the network cable is necessary. • To ensure safety, appropriate tie-wraps, fasteners, and sealant should be used to secure the cable along the route and through any bulkheads or the deck. • Cables should not be run near moving objects and high-heat sources or through doorways and bilges. • To avoid interference with other equipment, power and network cables should not be run next to or parallel to other cables, such as radio antenna lines or power cables. If this is not possible, the cables should be shielded with metal conduit or a form of EMI shielding. 4 Press the cables into any of the guide grooves  on the bottom of the case, and secure them using a cable holddown plate Ã. The cables should be bent or twisted as little as possible. 5 Position the radome on the mounting surface with the triangular mark on the case aligned to the front of the vessel. 6 Apply the included anti-seize compound to the threads of the four M8 x 1. 25 x 60 threaded rods. 7 Insert the four threaded rods into the mounting holes on the bottom of the radome. Up to 50 mm (2 in. ) of the threaded rods may extend below the radome. 8 Apply a bead of marine sealant on the mounting surface around each mounting hole. 9 Fasten the radome Ä to the mounting surface Å using the threaded rods Æ, flat washers Ç, spring washers È, and hex nuts É. 2