BendixKing MST 67A - Manual (Page 14)

006-18301-0000 Rev 0 Effective Date 7/04 10
KFS 578A FUNCTION SELECTOR & ATC CODE SELECT
The outer concentric knob on the right selects the
transponder mode of operation.
Rotating the function knob (CCW) to the TST posi-
tion initiates a comprehensive self test lasting
approximately eight seconds. All segments of the
display are illuminated for 2 seconds, then the code
window will display the encoded altitude for four seconds, then the con-
trol unit will return to the previously selected mode. (Refer to the Test
section in the Appendix for a detailed description of test functions.)
SBY places the Mode S Transponde in standby. SBY is annunciated on
the display window. Use SBY during ground operations.
ON activates the selected transponder without altitude reporting. ON is
annunciated in the display window.
ALT activates Mode S transponder with altitude reporting.
Selecting VFR for more than 3 seconds changes the ATC code to the
pre-programmed VFR code (Typically 1200). VFR is annunciated in the
display window for the 3 seconds prior to switching the programmed
code. The control unit will return to the mode selected prior to making
the VFR selection.
The VFR code can be programmed to be any code by the following
technique:
a. Place the function selector to VFR.
b. Select the VFR code as required.
c. Push the Ident (IDT) button, or wait 3 seconds, or rotate the Function
switch to the desired mode.
Controls and Displays
TST
SBY
ON
ALT VFR
R
PUSH
FL