
EX5000 Installation Manual
P/N 600-00073 Rev 24
- 86 -
3.
With a satellite in view, the signal strength and quality should peak above the following values:
4.
If the expected reception levels are not achieved, check for possible causes and solutions:
See
for additional information.
6.6 Broadcast Datalink Satellite Reception Confirmation
The broadcast satellite network transmits signals that are received by an external Datalink receiver,
which sends the information on to the MFD through a serial connection. If the Datalink antenna is not
properly installed, or if there is excessive electromagnetic interference (such as a nearby radio
transmitter or inadequately grounded electronics), the system will not achieve consistent reception.
➤
To assess system performance.
1.
Bring the aircraft to an area that has as few obstacles to line-of-sight viewing to the southern
horizon as possible.
2.
Select the Trip page on the MFD.
3.
Press
Display
until Broadcast (down-pointing arrow) Status is selected.
4.
The Signal Quality will be reported as Good, Marginal, Weak, or None. If the Broadcast Receiver
is working, the antenna and cabling are correct, and the aircraft is in view of at least one Broadcast
datalink satellite, the Signal Quality will be “Good” and the Receiver ID will be reported.
Maintenance Mode, System Info, Datalink/
Narrowcast Info
Trip Page, Narrowcast Status
Signal strength > -118 dBm
(-130 is lowest, -100 is highest)
Signal Strength > 4, (scale of 1-10)
Estimated SNR (EbNo) > 10 dB
Signal Quality > 4, (scale of 1-10)
Segment errors = Less than 10%
Message Quality = 10, (scale of 1-10)
Possible Cause
Possible Solution
The antenna field of view is
obstructed.
The antenna field of view is obstructed.
There is a local source of
electromagnetic interference:
■
Try shutting off any nearby sources (such as VHF radios, alternators,
magnetos, ground power cart).
■
Relocate the aircraft away from potential nearby sources.
■
Check electrical connections and grounds.
■
There is poor satellite coverage. Try again after fifteen minutes.
■
Check the antenna and cable for proper installation.
■
Check the connection between the antenna and its ground plane.
Summary of Contents for 700-00004 Series
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