25
UAV-1001006-001
ECCN 7A994
(not the GPS receiver). In normal flight operation, this distinction is of no
importance at all, but when ADS-B is used to manage ground operations, a
significant offset in antenna position could mean the aircraft footprint is not
in the same place as the ADS-B reported position. Although the GPS
Antenna Offset is primarily intended for position correction on large
transport aircraft, General Aviation aircraft can also have a significant
offset. For example, if the aircraft has a long tail boom and the GPS
antenna is on top of the tail, the GPS position could be 4 meters or more
from the nose of the aircraft.
GPS Antenna Lateral Offset from
roll axis (Meters)
GPS Antenna Longitudinal Offset
from aircraft nose (Meters)
0 to 60 in 2 Meter increments
8.3 Installation
The installation section will set the following parameters:
• Setup Source
o App Wi-Fi stored (typical) unless connected to an EFIS
o EFIS Com 1 if connected to an EFIS
• Control Source
o Transponder monitor (typical)
o EFIS for Transponder direct connection or EFIS Control
• GPS Source
o Com 2 for SkyFYX, GNS, Safe Fly 2020, Avidyne (Typical)
o Com 1 for EFIS with Trig Transponder (TMAP)
• Traffic/Uplink Output
o None : ADS-B in via WI-FI to EFB mobile device (Typical)
o MFD Com 2 if Pin 5 of echoUAT is connected to MFD/EFIS
o EFIS Com 1 required for Special Comm 2 configuration (not typical)
• COM1 Rate, Data and Phy
o Typically N/A (Not Applicable) if system not connected to EFIS or optional
mux cable
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