Gtp 59 Oat Probe; Gtx 33/33D Mode S Transponder; Gtx 33/33D Transponder - Garmin G1000 Maintenance Manual

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3.12

GTP 59 OAT PROBE

The GTP 59 OAT Probe provides outside air temperature measurement which is used by the
GDC 74A. Communication interface to the G1000 is through the GDC 74A/B.
3.13

GTX 33/33D MODE S TRANSPONDER

The GTX 33 and GTX 33D are solid-state transponders that provide Modes A, C and S
capability. The GTX 33D includes Mode S with diversity. Both transponders can be controlled
from either PFD, and only one transponder can be active at a time. Each transponder
communicates with the on-side GIA 63W through an RS-232 digital interface.
Page 3-8
Rev. A
Figure 3-14. GTP 59 OAT Probe
Figure 3-15. GTX 33/33D Transponder
G1000 System Maintenance Manual
190-00903-00