AS 680/682
Description, Operation and Maintenance Installation and Setup
ADS−B
3−27Ed. 10.07
3.6 SITE VERIFICATION TEST PROCEDURE AND INSTALLATION REPORT
This section suggests tests and procedures that the Installation Team can perform in order to verify
that a remote site has been properly installed and commissioned. The result is laid down in a Site
Installation Report (SIR). An appropriate form will be found in section 3.6.8.
3.6.1 Serial Numbers
Record all serial numbers into the Site Installation Report (SIR).
3.6.2 Mechanical Setup of Equipment
3.6.2.1 ADS−B Antenna
1 Verify that the ADS−B antenna is mounted vertical within ±0.5°.
2 Note the installed antenna height above ground to the SIR.
3 Take photos of the installed ADS−B antenna and its surroundings. If there are obstructions, docu-
ment their direction and distance from the antenna. A 360° panorama photo of the antenna envi-
ronment would be extremely valuable. Check box for ADS−B antenna photos on SIR.
4 Document the mounting configuration and antenna height (drawing with directions of compass
and rough distances). Include obstacles in the immediate surrounding of the antenna.
5 Verify that the antenna has conductive connection to the mounting assembly (i.e. no paint at the
contact surface). Check that the mounting assembly is correctly connected to the protective earth
bus bar.
3.6.2.2 Antenna Amplifier Unit (AAU)
1 Check that the AAU is mounted close to the ADS−B antenna so that the cable length between
antenna and AAU is less than 2 m.
2 Verify that the AAU protective earth strap is attached and correctly connected to the protective
earth bus bar.
3 Verify that the RF cables are correctly connected to the AAU:
input (with quarter−wave lightning protector) connected to the ADS−B antenna,
output connected to the SPU
3.6.2.3 GPS Antenna
1 Take photos of the installed GPS antenna and its surroundings. If there are obstructions, document
their direction and distance from the antenna. A 360° panorama photo of the antenna environment
would be valuable.
2 Document the mounting configuration and antenna height (drawing with directions of compass
and rough distances). Include obstacles in the immediate surrounding of the antenna.
3 Check that the GPS antenna mounting tube is correctly earthed.
3.6.2.4 Cables
1 Make sure that all cables are properly mounted according to the cable plan. Verify they are as short
as possible (no unnecessary loops).
2 Verify that the correct lightning protection is in place at the shelter cable entrance (for ADS−B RX
and GPS RX must be DC−pass type).
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