User's Manual

ROCKWELL COLLINS
COMPONENT MAINTENANCE MA NUAL with IPL
TDR-94, PART NO 622-9352
D
ESCRIPTION AND OPERATION
TASK 34-50-96-870-801-A01
1. G
eneral
A. The TDR 94/94D ATC/Mode S Transponder is a solid state, airbor ne, air traffic control (ATC)
transponder that responds to ATCRBS (Air Traffic Control Radar Beacon System) Mode A
and Mode C interrogations as well as Mode S (Mode Select) interrogations. The Mode-S
transponder differs from earlier ATCRBS transponders in the capability of responding to
discretely addressed interrogations and by the capability of receiving and sending data
link communications. The TDR 94D Mode S Transponder is also capable of operating
through either of two antennas for use in diversity installations for air to air surveillance
and communications.
B. Figure 1/GRAPHIC 34-50-96-99B-001-A01 shows an overall view of the equipment. Table
1/Table 34-50-96-99A-001-A01 is a list of equipment covered in this manual. Table 2/Table
34-50-96-99A-002-A01 is a list of related publications. Table 3, Abbreviations and Symbols,
has been moved to the Introduction section of this manual.
TDR-94/94D ATC Mode S Transponder
Figure 1/G RAPHIC 34-50-96-99B-001-A01
34-50-96
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May 18/06