Garmin GTX 33 Installation Manual

Contents

Garmin GTX 33 Installation Manual Manual pdf 10 page image

Provision is made for unit software upgrade by means of RS-232 data through rear connector pins. Ininstallations where the transponder interfaces with a GNS 480 (CNX80) or GTN 6XX/7XX the installationof an optional connector is highly recommended. If the optional connector is placed in the aircraft,transponder removal and reinstallation for software upgrade is not required. The software can be changedwhile the unit is still mounted inside the aircraft.The GTX 33 meets Mode S Enhanced Surveillance (EHS) requirements. Mode S Enhanced Surveillance isused predominantly in European airspace. It provides information consisting of additional aircraftparameters (see JAA NPA 20-12a) to ground radar systems. Compliance with Enhanced Surveillance mayrequire additional interface between aircraft systems and the GTX 33.The GTX 33 and GTX 33D differ from the GTX 33H and GTX 33DH in the qualified DO-160 vibrationcategories. See the GTX 33 Environmental Qualification Form (005-00131-03) for details.1.3 ADS-B CapabilitiesThe Extended Squitter Enabled GTX 33 provides the capabilities of Automatic Dependent Surveillance-Broadcast (ADS-B) technology, which improves situational awareness and flight safety. With ADS-Bcapabilities, position, velocity, and heading information are automatically transmitted to other aircraft andground stations. The current air traffic control system depends on a transponder request for pertinentaircraft information. ADS-B provides automatic transmission of aircraft information without a request.NOTE