Installation manual

Installation Manual
Selecting the Heading Source P/N 600-00175-000 Rev 04
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4.7 Selecting the Heading Source
The EX500/EX600 can receive aircraft heading from a variety of sources. Heading source options are:
Note: If an Avidyne PFD is not installed, the Synchro option yields the best system reliability
(availability). Heading information supplied by the other systems is typically sourced from the
synchro and may require interface converters between the synchro and the alternate heading
source. See the manufacturer’s installation manuals for guidance.
If any of the alternate sources fail, you will lose heading related functionality on the EX500/
EX600. Specifically, this results in the loss of traffic and RADAR overlay capability as well as
forcing North Up display of the Map Page.
See Section 5.11, “Map Heading Source Setup” on page 64 and Figure 34, “EX500/EX600 General
Wiring,” on page 95 for more information about selecting the active heading source.
4.8 Datalink Antenna Installation Considerations
The EX500/EX600 supports the following 2-Way Datalink installations:
● MLX770 Iridium Datalink transceiver
● Built-in ORBCOMM Datalink transceiver (EX500 Release 4.0 and earlier only)
For information on MLX770 installation, refer to the MLX770 Datalink Transceiver Installation Manual
(600-00204-000).
The ORBCOMM 2-Way Datalink system is designed to work with a VHF antenna covering the band
from 137 MHz to 151Mhz. If an existing comm antenna is in the preferred location for a datalink
antenna, consider using the Avidyne DC50 Datalink Coupler and replacing the existing comm antenna
with a combined VHF/datalink antenna. Please contact Avidyne for details.
The EX500/EX600 also supports Broadcast weather data, which provides more weather data in a
more timely fashion. Avidyne supports two Broadcast Weather suppliers:
● XM WX Satellite Weather, using the XMD076 XM WX Receiver from Heads Up Technologies.
● WSI Weather, using the Avidyne MLB700.
The Broadcast Datalink system operates in the S-band at 2.3 GHz.
Table 9: Heading Source Options
Source System Interface Source System Interface
Synchro ARINC 407 Synchro GPS/FMS GNC300XL ARINC 429
Lightning WX-500 RS-232 GPS 400/500 ARINC 429
Traffic Skywatch ARINC 429 GNS 430/530 ARINC 429
Skywatch HP ARINC 429 KLN-90B ARINC 429
KTA-870 ARINC 429 UNS-1B ARINC 429
KMH-880 ARINC 429 GNS-XLS ARINC 429
TCAS I ARINC 429 PFD Avidyne EXP5000 ARINC 429 or RS-232