User's Manual

EN
2
Front Panel
Display
The display shows the operating mode of the transponder, the reported
pressure altitude, and the current squawk code and Flight ID. The reply
indicator is active when the transponder replies to interrogations.
The pressure altitude is displayed as a Flight Level, which is the pressure
altitude in hundreds of feet. When non-standard atmospheric conditions
apply, this may not match the altimeter indicated altitude, but will be correctly
displayed by the ATC radar.
Mode Selector Knob
The right hand knob controls the power to the transponder and the operating
mode.
OFF
Power is removed from the transponder.
SBY
The transponder is on, but will not reply to any interrogations.
ON
The transponder will respond to all interrogations, but altitude
reporting is suppressed.
ALT
The transponder will respond to all interrogations.
When airborne, the transponder should always be set to ALT unless otherwise
directed by Air Traffic Control. Aircraft installations that include a gear squat
switch will automatically switch the transponder to Ground Mode on landing
or whilst taxiing. GND will be indicated on the display.
Push Buttons
IDENT
Press the IDENT button when ATC instructs you to “Ident” or