GRT Avionics, Inc.
May 2019
Sport EX/Horizon EX Install. Manual
11
Rev. A
devices, as well as to provide them with EFIS data that the GPS can use for enhanced
functionality. A serial connection is enough to receive the GPS position, groundspeed,
ground track and flight plan data.
2-2-13: GPS Data to External Devices
Configuring any serial output to “Autopilot-NMEA 0183” will provide NMEA0183 GPS
position, speed and ground track data; the flight plan is not transmitted.
2-3: Gray Code Altitude Encoder Output
Older transponders use an interface called Gray Code to receive data from altitude
encoders. Since the Sport EX does not contain an internal altitude encoder, an external
adapter is used for interfacing with this type of transponder. All newer transponders have
the option to use serial data instead of Gray Code, so this adapter is not commonly used.
2-4: USB Port
In some cases, other equipment may communicate with the display unit via a USB
connection. A USB port is easy to connect and transmits large amounts of data quickly.
USB devices do not require you to program a baud rate. The Sport EX and Horizon EX
both have a single USB port that may be used for one USB device. Alternatively, you may
attach a USB hub to connect up to three devices. Software updates are also delivered to
the DU via USB
—simply install the software update files onto a USB thumb drive from
the GRT website, then connect the thumb drive to the
display unit’s USB port. The DU
will upload the files as per the Update instructions found in the
Sport EX Setup Guide
.
2-5: Optional Features
There are several optional features that can be bundled with your Sport EX/Horizon EX,
allowing you to purchase the EFIS at a lower total-cost and to expand the capabilities of
your EFIS. These expanded features can be implemented during the initial build phase
or at a later date, usually without having to remove the display unit from your instrument
panel. The optional features can also be added after your initial purchase, either in a
group at a discounted rate or individually as they are needed. The features are:
•
Moving Map:
Includes free database updates for US territory. Worldwide
database coverage is provided a Jeppesen Database Subscription.
•
Synthetic Vision/Terrain Relief Map:
10-mile range; high-resolution, forward-
looking synthetic vision includes terrain, runways, obstacles, waypoints and traffic.
•
ADS-B Displays for Traffic and Weather on the PFD and MAP Screens:
Requires a connection to any ADS-B receiver that provides data in the standard
GDL-90 format.
