ATR833S / P/N 833S-(Cxxx)-(Cxxx)
Operation and Installation
26
Document-Nr.: 01.142.010.71e / Revision:1.03
off xxx s
: automatic display darkening after xxx seconds after last user
interaction (xxx= 10s, 20s, 30s, 60s, 120s)
Reactivation of the darkened display is done by pressing any key or
turning any knob (the action of the key pressed is performed when
pressing the key again after the display turned on) or when transmitting.
A short press of
SET
switches to the next configuration item.
3.3 PTT SLCT
– PTT Button Selection
In the event that two external PTT buttons are wired up, this
configuration item can be used to deactivate one PTT button, and the
associated microphone(s), from transmitting.
With the
VOL/SEL
rotary knob the following options can be selected:
This feature should only be used when:
it can be foreseen that no frequency changes will be
required (i.e. when using only limited airspace near one
airport, e.g. for circuit pattern training flights), and
the crew is familiar with the energy saving mode
In all other cases this feature shall be deactivated, in order to
prevent the usage of wrong frequencies and to avoid
confusion of pilots not aware of the energy saving mode.
