400W Series Installation Manual Page iii190-00356-02 Rev. G2.4.1 GPS Antenna Location.........................................................................................................2-32.4.2 COM Antenna Location .......................................................................................................2-42.4.3 VOR/LOC Antenna Location...............................................................................................2-62.4.4 Glideslope Antenna Location...............................................................................................2-62.4.5 Electrical Bonding................................................................................................................2-62.4.6 Interference of GPS..............................................................................................................2-62.4.7 COM, VOR/LOC, and Glideslope Antenna Installation Instructions..................................2-62.5 Mounting Considerations..............................................................................................................2-72.5.1 Determination of Acceptable Field-of-View........................................................................2-72.6 Cabling and Wiring Considerations............................................................................................2-112.7 Air Circulation and Cooling........................................................................................................2-112.8 Compass Safe Distance...............................................................................................................2-112.9 Installation Approval Considerations .........................................................................................2-122.9.1 Autopilot Interface Approval .............................................................................................2-122.9.2 Altitude Encoder/Air Data Computer Interface Approval .................................................2-122.9.3 Audio Panel Interface Approval.........................................................................................2-133. INSTALLATION PROCEDURES...............................................................................................3-13.1 Unit and Accessories.....................................................................................................................3-13.2 Optional Accessories ....................................................................................................................3-23.2.1 GPS Antenna Options ..........................................................................................................3-23.2.2 GPS Antenna Doubler..........................................................................................................3-33.2.3 Other Accessories.................................................................................................................3-33.3 Database Options ..........................................................................................................................3-33.4 Miscellaneous Options..................................................................................................................3-33.5 Optional Reference Material.........................................................................................................3-33.6 Installation Materials Required but Not Provided ........................................................................3-43.6.1 Optional Accessories Not Supplied (GNC 420W and GNS 430W Only) ...........................3-43.6.2 Materials Required But Not Supplied (New Installations Only) .........................................3-43.7 Special Tools Required .................................................................................................................3-53.8 Cable Installation ..........................................................................................................................3-63.9 Equipment Mounting ....................................................................................................................3-83.9.1 Rack Installation...................................................................................................................3-83.9.2 400W Series Unit Insertion and Removal............................................................................3-83.9.3 Unit Replacement.................................................................................................................3-83.10 Antenna Installation and Connection............................................................................................ 3-93.10.1 GPS Antenna....................................................................................................................3-93.10.2 COM Antenna................................................................................................................3-103.10.3 NAV Antenna ................................................................................................................3-10
