Garrecht Avionik GmbH
VT-01 Transponder
Installation Manual - english -
Document:
01.0200.11E
Revision: 1.3
7
4.Input Devices (human machine interface)
Picture of front panel with Input devices
The system will be operated using the following devices:
Nr.
Description
Function
1
On/Off key
Switches the system On or Off
2
Ident – key
Invokes the Ident Mode for 18 sec.
3
Mode – key
Selects the operating mode
4
Double shaft encoder with push on
capability for inner knob
Enters or modifies values
4.1. On/Off key
To enable the system, press key 1 shortly. After the start, the unit performs the built in test and shows
the operating mode. For switching off, press key 1 for at least 3 seconds Release the key, when the
LCD becomes blank
4.2. Ident key
Pressing key 2 invokes the ident mode for 18 seconds. Use this function only when the ATC requires
to sqawk ident.
4.3. Mode-key
Key 3 selects the following modes:
•
SBY
Standby - System is switched on, no replies or squitters will be sent.
•
ON
Selected reply code will be replied for Mode-A/C interrogations, altitude information is
set to zero, squittering is enabled, Mode-S interrogations will be replied
•
ALT
Selected reply code will be replied for Mode-A/C interrogations, altitude information is
set to indicated value, squittering is enabled, Mode-S interrogations will be replied
4.4. Double shaft rotary encoder
Main input device for setting values is the double shaft rotary encoder. Rotating the outer knob selects
the position to be modified. Rotating the inner knob changes the selected value.
The edit mode will be started rotating the inner or outer knob of the double shaft encoder.
Pushing the inner knob confirms the selected value and cancels the edit mode (cursor stops blinking).
1
2
3
4
