
Marker sensor panel/NAV mode display panel
DME HOLD SWITCH
(alternate action)
PUSH
- Switchlight illuminates
- The frequency for DME operation is held by the DME receiver while
its associated NAV controller is re-selected to another frequency.
TAS DISPLAY BUTTON
(momentary action)
PUSH
- True airspeed display will momentarily replace the
SAT display on the advisory display unit.
- TAS data is supplied by the air data computer (as
selected) by His SEL switch on the FGC.
MARKER BEACON LIGHTS
- INN (white), OUT (blue) and MID (amber) illuminate as
aircraft passes over appropriate marker
When a symbol generator failure occurs, this
is the switch used to restore the display using
the cross-side symbol generator.
Dash8-200/300 - Navigation