Garmin GDL 82 Installation Manual

Also see for GDL 82: Installation manual Quick start guide

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Garmin GDL 82 Installation Manual Manual pdf 62 page image

System Checkout190-01810-00 GDL 82 TSO Installation ManualRev. 5 Page 8-3b. For VHF radios with 8.33 kHz channel spacing, include the following frequencies in addition to those listedabove:8. Repeat steps 6 and 7 for all remaining COM transceivers installed in the aircraft.9. If the aircraft is equipped with Traffic Collision Avoidance System (TCAS), turn on TCAS and verify that GPSposition remains valid. (If position is lost, the Navigation Status will change to ACQUIRING.)If aircraft is SATCOM-equipped, use the SATCOM system and verify that GPS position remains valid. (If position is lost, theNavigation Status will change to ACQUIRING.)External GPS SourceThe GPS checkouts described in this section are applicable for installations where position information is provided by anexternal GPS source.If the following steps do not perform correctly, check the electrical connections and configuration setup for theinterfaced GPS source.1. Allow the external GPS source to acquire a position fix.2. Go to the GPS page in the GDL 8X Install Tool and verify the applicable external GPS status fields are valid.8.1.2 Interface ChecksVerify the GDL 82 is communicating properly to interfaced equipment. Skip non-applicable interfaces.TransponderThis check verifies that the GDL 82 is receiving the correct input information from the transponder. If the followingsteps do not perform correctly, check the electrical connections and configuration setup for the interfaced transponder.1. Go to the ADS-B page in the GDL 82 Install Tool.2. Select ALT mode on the transponder.3. Verify the Interface Status field indicates receiving (green box).4. Verify the Mode field indicates the same as the active transponder.5. Verify the Squawk code agrees with the transponder.6. Activate the IDENT function on the transponder.7. Verify the IDENT Status on the ADS-B page changes from inactive to active.8. Verify the Pressure Altitude field agrees with the active altitude source.Discrete InputsIf the GDL 82 is connected to any external switches, perform the following steps:1. Go to the GDL 82 Discretes page.2. If a squat switch is installed, verify the Squat Switch* discrete input indicates Active when the switch provides aground signal, and Inactive when the switch provides an open signal.3. If an anonymous mode switch is installed, verify the Anonymous Mode* discrete input indicates Active when theswitch is in the ENABLED position, and Inactive when the switch is in the DISABLED position.4. If the GDL 82 does not receive the correct signal from the interfaced switch, verify the wiring and ensure it isconnected properly and not shorted to ground.121.185 MHz 130.285 MHz121.190 MHz 131.290 MHz