Installation Manual

AVIATOR UAV 200
Installation Manual
Document: 677-A0219_IM issue 1.4
COBHAM PUBLIC
Page 17 of 61
Figure 4-3: Unit Positioning to Avoid Obstacles between Antenna and Satellites
4.5.3.1 Co-location with Other Systems
The AVIATOR UAV 200 has been designed to pass relevant RTCA DO-160G Radiated Emission tests [refer to
Table 7-1]. RF Transmissions from the terminal may still affect the operation of other RF systems in some
cases.
The installer must evaluate the system RF susceptibility before deciding on the location of the SATCOM
terminal.
4.5.3.2 Aircraft Structure
The terminal should be secured to the airframe using the six mounting holes provided. These mounting
points are also used for electrical grounding.
The equipment must be mounted on a thermally conductive section of the aircraft structure or mounting
plate that will provide cooling for the terminal.
4.5.4 Sealing
The UAV 200 terminal allows for pressure equalization with a breathable Gortex™ membrane. The
breathable membrane prevents the ingress of fluids.
Mount the terminal so that water does not accumulate on the underside of the terminal. This ensures the
Gortex™ membrane cannot become blocked by constant contact with water on the membrane.
4.5.5 Wiring the AVIATOR UAV 200
Connect the wiring for the AVIATOR UAV 200 terminal as described below.
1. Make sure that the aircraft wiring installation complies with the wiring requirements shown below in
Figure 3-1 to achieve the DO-160G performance criteria. The cable length used during qualification
is 3.3m.
2. Use screened twisted pair cable for the Ethernet and RS-232 interfaces.
3. Keep the shield termination wire length as short as practically possible. The maximum shield
terminal wire length must be shorter than 50 mm.
4. In order to maximise terminal power efficiency, keep the series resistance of the power cabling as
low as possible. The power cable resistance must be lower than 150 mΩ between the power source