4. Installation Overview
air
avionics
Ensure that the antenna cable is routed away from the antenna in an orthogonal way.
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2
If the fuselage is not made of metal, the antenna has to be mounted on a conductive surface of
at least 20cm in diameter. Always install 1090MHz antennas vertically
1
1
Figure 4.7.: External 1090 MHz antenna
Figure 4.8.: External antenna reception/radiation pattern
4.4.4 GPS Antennas
AT-1 comes with a cockpit GPS antenna with an adhesive pad. It can be installed on the
instrument panel glare shield or any other place with unobstructed view of the sky. Good
GPS performance is important for correct operation. Please make sure that the requirements
below are met as closely as possible.
In larger aircraft that are mostly made of conductive materials such as metal or carbon fiber,
or for aircraft with heated windshields, installing an external GPS antenna may be required
for optimum performance. Normally, such an external antenna would be placed on top of
the fuselage of the aircraft.
1. Always install the GPS antenna lying flat horizontally and facing upwards.
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AT-1
·
Installation Manual
·
rev. 4.0
·
2020/01/09
