1-2Garmin GDL 88 ADS-B Transceiver Pilot’s Guide 190-01122-03 Rev. Cproducts for display on compatible displays.• Traffic alertingThe GDL 88 provides aural and visual cues of impending traffic conflicts,to include directional aural (“Traffic, Traffic, Two O’clock, Two Miles,Low”).• Single point of entry for transponder squawk code, IDENT, andemergency status1.2 GDL 88 Part NumbersPart Number Description010-00859-30 GDL 88010-00860-30 GDL 88, Internal WAAS with install kit010-00861-30 GDL 88 Diversity with install kit010-00862-30 GDL 88 Diversity, Internal WAAS with install kitTable 1-1 GDL 88 Configurations