Garmin GTX GTX 330D, Руководство по обслуживанию

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190-00734-11 GTX 33X and GTX 3X5 ADS-B Maintenance Manual
Rev. 6 Page 2-1
2 SYSTEM DESCRIPTION
2.1 GTX 330/330D ................................................................................................................... 2-2
2.2 GTX 33/33D ....................................................................................................................... 2-4
2.3 GTX
335/335R ................................................................................................................... 2-6
2.4 GTX 345/345R ................................................................................................................... 2-8
2.5 GTX 335R/345R with Legacy G1000 .............................................................................. 2-10
2.6 Electrical Load Information.............................................................................................. 2-11
Garmin GTX 33X and GTX 3X5 units operate on radar frequencies, receiving ground radar or TCAS
interrogations. The GTX transmits 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 interrogation. The GTX 345/345R units include ADS-B In which provides TIS-B and FIS-B data
via UAT and 1090 MHz. The GTX 3X5 units offer an optional Garmin altitude encoder to meet the
required barometric pressure altitude source and an optional internal GPS/SBAS source to meet the
required GNSS position source integrity for ADS-B Out.
The Garmin transponders approved by this STC are in the family of GTX 33X and GTX 3X5 transponders.
The ES option of the GTX 33X units provides ADS-B extended squitter functionality.
The GTX 33X models include:
 GTX 33
 GTX 330
 GTX 33D
 GTX 330D
The GTX 3X5 units all provide ADS-B Out functionality. GTX 345/345R units provide ADS-B In.
The GTX 3X5 models include:
 GTX 335
 GTX 345
 GTX 335R
 GTX 345R
ADS-B technology improves situational awareness and flight safety. A Garmin transponder with ADS-B
capabilities will automatically transmit position, velocity, and heading information to other aircraft and
ground stations. The current air traffic control system depends on a transponder request for pertinent
aircraft information, whereas ADS-B provides automatic transmission of aircraft information without a
request.