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Detailed Operation
Enter Code (GDL 90 UAT only)
This is where you enter the ATC-assigned transponder code. This code entered into the MX20 does NOT
control the code on Mode A, C, or S transponders. It only sends the selected code to the GDL 90 UAT for
inclusion into the position report. The MX20 must be configured as the UAT’s control panel to make this func-
tion available.
Set 1200
Pressing the Set 1200 key inserts the code 1200 into the Flight ID. This code entered into the MX20 does
NOT control the code on Mode A, C, or S transponders.
Services
The Services option allows emergency broadcast functions to be sent over the data-link radio. When pressed, a
list of standard emergency/service codes will be presented. The desired broadcast function can be selected and
broadcast by pressing the TRANS (Transmit) “smart” key or cancelled by pressing the CANCEL “smart key.”
When a special service code is being transmitted, the services label is illuminated. To terminate the broadcast,
press the SERVICES option again. Once terminated, the code will revert back to the previously set code. The
MX20 must be configured as the UAT’s control panel to make this function available.
Traffic Menu Option Page 2
The second menu option page of the Traffic function lets you select options for the choices of Time Interval,
Traffic Altitude Filter,
Altitude, Flight Plan,
and
Traffic Map Orientation
.
Time
The time interval option sets the amount of time to estimate the path and location of the traffic. The path of
the traffic is shown by the line extending from the point on the end of the traffic arrow icon. The end of the
line shows the point where the traffic item will be at the end of the selected time interval. Select 1, 1.5, 2-5, or
10 minutes.
Press the Main MENU ITEM key to display the next page of menu items.
ADS-B Traffic Menu Items (Page 2)
ADS-B Broadcast ID Info
ADS-B Traffic