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MAINTENANCE MANUAL
CAS-100 COLLISION AVOIDANCE SYSTEM
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Table 9. ANT-81A TCAS Directional Antenna Leading Particulars
Characteristic
Description
Form Factor
ARINC 735A (teardrop shape)
Antenna Base Types
Curved base (071-50001-8104)
Flat base (071-50001-8102, -8103)
Temperature Range
Operating
-55C to +70C
Storage
-55C to +85C
Maximum Weight
2.0 lb (0.91 kg)
Overall Dimensions
See Outline Drawings, Figures
2007
thru
2009.
Antenna Mounting Footprint
See Figure 2010.
Antenna Mounting
Mounts directly to aircraft using mounting screws defined in
Figures
2007
thru
2009. An antenna adapter (Figure 2010)
is available for mounting flat-base antenna on a curved
surface.
Exterior Material
High-strength composite
Number of Antenna Array Elements
Four
Polarization
Vertical
Power Requirements
None
Transmission Frequency
1030 ±1 MHz
Receiving Frequency
1090 ±3 MHz
Connectors
Quantity
Four
Type
See Outline Drawings, Figures
2007
thru
2009.
Pressurization
Withstands a pressure differential of 25 P.S.I.A.
Lightning Protection
Meets swept zone 2A lightning strike requirements.