Garmin GTX 335 w GPS, Руководство по установке

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190-00734-17 GTX 335 w/GPS Installation Guidance
Rev. 1 Page 1-5
1.4 System Overview
ADS-B technology improves situational awareness and flight safety. A Garmin transponder with ADS-B
Out functions automatically transmit position, velocity, and heading information to other aircraft and
ground stations. The air traffic control system uses transponder requests for appropriate aircraft
information. ADS-B Out gives automatic transmission of aircraft information without a request.
The GTX 335 transponders have an optional Garmin Altitude Encoder (GAE) to meet the required
barometric pressure altitude source and the internal GPS/SBAS source that meets the required GNSS
position source integrity for ADS-B Out.
The GTX 335 transponders have a radio transmitter/receiver that operates on L-Band radio frequencies.
These transponders receive ground radar or TCAS interrogations and transmit a coded response of pulses to
ground based radar on a frequency of 1090 MHz. Each unit has IDENT capability and replies to ATCRBS
Mode A, Mode C, and Mode S All-Call interrogations.
Consider the following if installing a GTX 335 in an aircraft with an existing ADS-B Out source.
1. Current FAA guidance allows multiple ADS-B Out transmissions on both links if the ICAO aircraft
identifier is provided on both systems.
2. Garmin recommends all ADS-B out systems be fully compliant at the time the aircraft is equipped
with any fully complaint ADS-B out system. This can be accomplished by either disabling the
earlier version of ADS-B out, or upgrading it to also meet full compliance requirements. Refer to
section 3 for additional details.