Honeywell International Inc. 9PGTPL-100A Manuale Utente

Page 2013

1 Mar 2006

TPL-100A Processor / Part No. 940-0530-001

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The directional antenna is mounted on the aircraft by 4 or 8 mounting screws 
depending on user mounting requirements. A center hole must be provided on the 
aircraft to attach the four coaxial cables to the antenna connectors. An O-ring gasket 
is installed around the outside circumference of the center hole. An approved lock-tight 
sealant must be applied to each mounting screw. After the antenna is installed, an 
approved silicant must be applied around the outer circumference of the antenna to 
seal the antenna to the aircraft fuselage. For mounting hole dimensions, mounting 
screw type, antenna footprint patterns, and other mounting details, refer to antenna 
outline drawings, Figure 2001. 

When the antenna has been mounted, connect the four coaxial cables from the 
MILACAS-FR Processor to the bottom of the antenna.

(3) Electrical Bonding

Electrical bonding resistance of the installed antenna to aircraft skin should not exceed 
0.01 ohms.

Refer to the applicable Mode S transponder system maintenance manual.

(1) Individual Unit Inspection

Table 2001 is a visual inspection/check procedure that must be performed after system 
installation as part of a system checkout. In addition, the procedure must be used as a 
periodic maintenance inspection check.

NOTE: For system units not covered in this manual, refer to the installation section of 

the applicable maintenance manual for proper inspection procedures.