Broadcast Datalink Satellite Reception Confirmation - Avidyne Entegra EX5000 MFD Series Installation Manual

3. With a satellite in view, the signal strength and quality should peak above the following values:
Maintenance Mode, System Info, Datalink/
Narrowcast Info
Signal strength > -118 dBm
(-130 is lowest, -100 is highest)
Estimated SNR (EbNo) > 10 dB
Segment errors = Less than 10%
4. If the expected reception levels are not achieved, check for possible causes and solutions:
Possible Cause
The antenna field of view is
obstructed.
There is a local source of
electromagnetic interference:
See www.avidyne.com

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.
Signal Strength > 4, (scale of 1-10)
Signal Quality > 4, (scale of 1-10)
Message Quality = 10, (scale of 1-10)
The antenna field of view is obstructed.
■ 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.
for additional information.
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EX5000 Installation Manual
P/N 600-00073 Rev 24
Trip Page, Narrowcast Status
Possible Solution