Garmin GTX 3x5 Series Installation Manual

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Contents

Garmin GTX 3x5 Series Installation Manual Manual pdf 31 page image

190-01499-02 GTX 3x5 TSO Installation ManualRev. 1 Page 3-53.4.4 GA 36 AntennaAntenna includes four 10-32 UNF-2A x 1.00" SS 303 mounting screws and one O-ring.An antenna doubler may also be required. Refer to appropriate antenna installation data.To secure the antenna, four #10 washers and four #10 self-locking nuts are required. Suitable nut platesmay be secured to the doubler. Torque the four supplied #10-32 stainless steel screws 20-25 in-lbs. Toavoid deformation of the mounting area, torque should be evenly applied across all mounting screws.To connect the GPS antenna coax cable, a TNC plug is required.3.4.5 GA 37 AntennaAntenna includes four 10-32 UNF-2A x 1.00" SS 303 mounting screws and one O-ring.An antenna doubler may also be required. Refer to appropriate antenna installation data.To secure the antenna, four #10 washers and four #10 self-locking nuts are required. Suitable nut platesmay be secured to the doubler. Torque the four supplied #10-32 stainless steel screws 20-25 in-lbs. Toavoid deformation of the mounting area, torque should be evenly applied across all mounting screws.To connect the GPS antenna coax cable, a TNC plug is required.3.4.6 A33W AntennaAntenna includes four 6-32 UNC-2A x 1.00" SS 303 mounting screws and one O-ring.An antenna doubler may also be required. Refer to appropriate antenna installation data.To secure the antenna, four #6 washers and four self-locking nuts are required. Suitable nut plates may besecured to the doubler. Torque the four supplied #6 stainless steel screws 3-5 in-lbs. To avoid deformationof the mounting area, torque should be evenly applied across all mounting screws.To connect the GPS antenna coax cable, a TNC plug is required.3.5 Installation Materials Required But Not SuppliedThe GTX 3x5 is installed with standard aviation materials. The following items are required forinstallation, but not supplied.• Wire (MIL-W-22759/16 or equivalent)• Shielded wire (MIL-C-27500 or equivalent)• Aircraft grade category 5 Ethernet cable (Required for installations utilizing the HSDB interfaces)• Mounting hardware• Circuit breaker of appropriate rating• Tie wraps and/or lacing cord• Ring terminals (for grounding)• Coaxial cable (RG-400 or equivalent – see section ?? for more information)• Coax connectors – BNC connectors for the transponder antenna and TNC connectors for the GPSantenna• Pressure altitude source (must meet ??)Options for pressure altitude source:• Optional pressure sensor module• RS-232 serial input• ARINC 429 input• Parallel Gray code input