Trig Avionics 01629-00, Руководство по установке

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TT26 ADS-B Transponder Installation Manual 24 January 2017
01633-00 Issue AC
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22 Trig Avionics Limited
7. Post Installation Checks
Post installation checks should be carried out in accordance with your
certification requirements. These checks should include:

Mode S interrogations to verify correct address programming.

Verification of the reported altitude using a static tester.

Where installed, verification of correct squat switch ground/airborne
indications.

Interrogations to verify the receiver sensitivity. A Mode S
transponder should have a minimum triggering level (MTL) of
between -77 dBm and -71 dBm. Failure to meet this requirement
usually indicates antenna or coaxial cable problems.

Interrogations to verify the transmitted power. The installation should
have no less than 125 watts at the antenna (and no more than 500
watts). Failure to meet this requirement is also generally due to
antenna or wiring issues.

Verification of the GPS position source and ADS-B outputs.
Whenever a valid position is received by the transponder and the
transponder is in any mode other than Standby, ADS-B Extended
Squitters should be observed on the transponder test set.