Technical data

TRT800H Installation and Operation
16 Dokument-Nr.: 03.2121.010.71e / Revision: 1.03
• Keep away three feet from the ADF sense antenna or any other
communication antenna and six feet from the DME antenna.
• Pursue mounting in vertical position under the belly
2.5.3 Antenna Wiring
• Refer to 1.10 Accessories for suitable antenna cables.
• Keep wiring as short as possible.
• Avoid sharp bends.
• Avoid cable running near RF generating sources (generators, trim
motors, ignition coil or battery charger).
• Keep away from an ADF antenna cable at least 12 inches.
• Electrical connections to the antenna shall be protected against
moisture to avoid loss of efficiency.
• A special cable type (CELLFOIL or AIRCELL) has low attenuation
at 1090 MHz but is not very resistant against mechanical stress.
Attenuation from antenna to transponder at 1090 MHz
must
not exceed 1.5 dB!
2.6 POST INSTALLATION CHECK
A certified maintenance shop must verify proper operation
of the transponder by testing in accordance with Appendix
F of “14 CFR Part 43 – ATC Transponder Tests and
Inspections”.
All steering and control functions of the aircraft are to be examined, in
order to exclude disturbances by the wiring.
The most important factor in the transponder configuration is the setting
of the ICAO address.
Verify proper operation of the transponder during an in-flight test under
VFR conditions.