7. Dual COM Knob – Tunes the MHz (large knob) and kHz (small knob)
standby frequencies for the COM transceiver. Pressing this knob toggles
the tuning cursor (light blue box) between the COM1 and COM2 elds.
8. COM Frequency Toggle Key – Toggles the standby and active COM
frequencies. Pressing and holding this key for two seconds automatically
tunes the emergency frequency (121.50 MHz) in the active frequency eld.
9. COM VOL/SQ Knob – Controls COM audio level. Pressing this knob turns
the COM automatic squelch ON and OFF. Audio volume level is shown in
the eld as a percentage.
10. Direct-To Key – Allows the user to enter a destination waypoint and
establish a direct course to the selected destination (specied by the
identier, chosen from the active route, or taken from the map cursor
position).
11. FPL Key – Displays the active Flight Plan Page for creating and editing the
active ight plan, or accessing stored ight plans.
12. CLR Key (DFLT MAP) – erases information, cancels an entry, or removes
page menus. To display the Navigation Map Page immediately, press and
hold CLR (MFD only).
13. Dual FMS Knob – Used to select the page to be viewed (MFD only). The
large knob selects a page group (MAP, WPT, AUX, NRST), while the small
knob selects a specic page within the page group. Pressing the small
knob turns the selection cursor ON and OFF.
14. MENU Key – Displays a context-sensitive list of options. This list allows the
user to access additional features, or to make setting changes that relate to
certain pages.
15. PROC Key – Selects approaches, departures, and arrivals from the ight
plan. If a ight plan is used, available procedures for the departure and/
or arrival airport are automatically suggested. If a ight plan is not used,
the desired airport and the desired procedure may be selected. This key
selects IFR departure procedures (DPs), arrival procedures (STARs) and
approaches (IAPs) from the database and loads them into active ight plan.
16. ENT Key – Accepts a menu selection or data entry. This key is used to
approve an operation or complete data entry. It is also used to conrm
selections and information entries.
17. Dual ALT Knob – Sets the reference altitude in the box located above the
Altimeter. The large knob selects the thousands, while the small knob
selects the hundreds.
18. Left Display Backup Button – Pressing the left Display Backup button
activates/deactivates reversionary mode on the left PFD.
19. Right Display Backup Button – Pressing the right Display Backup button
activates/deactivates reversionary mode on the right PFD.
20. Softkeys – The softkeys are located along the bottoms of the displays.
They are used to select items shown on the display.
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General