4.3 GPS (position source)
4.3.1 SMA connector (Beacon 978G only)
The SMA connector on the Beacon 978-s is for a GPS antenna (not included with
the Beacon 978). You may use off-the-shelf active GPS antenna with a 50ohm load,
which can be located remotely or inside the aircraft with as much clear view to the sky as
possible. If your GPS antenna uses BCN connections, use the supplied BNC to SMA
adapter. It is recommended to use the Beacon with TSOd GPS antennas.
4.3.2 External GPS receivers (Beacon 978)
When using external GPS receivers make sure they comply with the
requirements for 2020. For GPS equipment, you may install an uncertified GPS on
amateur-built and light-sport aircraft with experimental airworthiness certificates.
However, the GPS equipment must meet the performance requirements of a GPS TSO.
You can ask the equipment manufacturer, stating the device meets the performance
requirements of either TSO-C166b or TSO-C154c.
Here is a list of approved GPS sources:
Levil Aviation: iLevil2 AW or iLevil3 AW (with the certified GPS option)
GARMIN: GNS 400W-530W series (with appropriate software update)
Note: If you have a specific GPS that is not listed above, contact us at
info@levil.com with your suggestion.
5.0 LCD NAVIGATION
The LCD interface has one button (push and rotate) and has three different modes:
On power ON, the LCD interface will display the company name “LEVIL AVIATION”, firmware
and serial number, followed by the Home Page. To navigate between the screen modes, use
the button as follows:
Home Page -> PUSH and RELEASE button to enter Main Menu
Home Page -> PUSH and HOLD button for 4 seconds to enter Settings Menu
Main Menu -> Rotate the button to go through the Menu Items