Garmin GDL 88 Series Pilots Guide - Page 38

GDL 84/88 internal malfunction, antenna malfunction, incorrect setting, or other fault that is preventing ADS-B transmission or normal operation of the GDL 84/88. Figure 6-1 Dual Annunciator Reporting Fault Type ADS-B Annunciator Priority Light(s) Activated Description 1 Transmit Fail Both A GDL 84/88 internal malfunction, antenna malfunction, or incorrect configuration setting prevent transmission. 2 No NO POSN The GDL 84/88 is not receiving Position GPS position. 3 Fault FAULT A GDL 84/88 or external fault prevent proper operation of the GDL 84/88. -- No Fault Neither No fault present. Table 6-1 GDL 84/88 Fault Types (Dual Annunciators) Figure 6-2 Single Annunciator Fault Type ADS-B Annunciator State Description Transmit Fail/ Fault Solid On ADS-B Out not transmitting or transmissions are not rule compliant. Fault Flashing at Power On The GDL 84/88 has a non-critical fault. See your dealer for service. No Fault Neither No fault present. Table 6-2 GDL 84/88 Fault Types (Single Annunciator) 6-2 Garmin GDL 84/88 ADS-B Transceiver Pilot's Guide 190-01122-03 Rev. E