The GTX 3000 Mode S ES remote transponder features ADS-B “Out” transmission and TCAS II/ACAS II compatibility. This unit will help allow you to comply with the FAA mandated ADS-B “Out” requirements when paired with an approved SBAS/WAAS GPS position source, like certain Garmin flight decks or GTN series avionics.
The GTX 3000 uses 1090 MHz extended squitter (ES) transmission. This broadcasts accurate details about your aircraft such as GPS-calculated position, flight ID, altitude, velocity, climb/descent and heading information to ATC ground stations.
When combined with a TCAS II/ACAS II traffic system like the Garmin GTS 8000, as well as a radar altimeter like the GRA 5500, the GTX 3000 is an integral part of a complete TCAS II/ACAS II solution. When your traffic system detects an immediate conflict, it will use your GTX 3000 to communicate with the conflict’s TCAS II/ACAS II system to determine the best course of action for both aircraft. Each pilot will then be given visual and aural Resolution Advisories (RAs) with separate but complimentary instructions. For example, one pilot may be told to climb while the other is told to descend.