Garmin GTX 33 Installation Manual

Contents

Garmin GTX 33 Installation Manual Manual pdf 9 page image

1 GENERAL DESCRIPTION1.1 IntroductionThis manual presents mechanical and electrical installation requirements for installing the various versionsof the Garmin GTX 33 Mode S Transponder. These versions include all GTX 33, GTX 33D, GTX 33H,and GTX 33DH units with or without Extended Squitter Enabled; as part of a Garmin Integrated FlightDeck. Throughout this manual, the term GTX 33 applies to all versions of the GTX 33 and GTX 33Dunless specifically stated otherwise.The GTX 33 can also be incorporated as a remote mounted unit in installations with other compatiblecontrol/display units such as the Garmin GNS 480 (CNX80), GTN 6XX/7XX, and GMX 200 (MX20)Multifunction Display (MFD).1.2 Equipment DescriptionThe Garmin GTX 33 rack mounted Mode S Transponder is a radio transmitter and receiver that operateson radar frequencies, receiving ground radar and TCAS interrogations at 1030 MHz and transmitting acoded response of pulses on a frequency of 1090 MHz. The GTX 33 is equipped with IDENT capabilitythat activates the Special Position Identification (SPI) pulse for 18 seconds.The GTX 33 replies to Mode A, Mode C and Mode S interrogation. Mode A replies consist of framingpulses and any one of 4,096 codes, which differ in the position and number of pulses transmitted. Mode Creplies include framing pulses and encoded altitude.