Radio Stack
Use the Open Radios
Panel Icon to display the radios and autopilot flight director system
control.
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The NAV 1 Radio features:
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The CDI needle and waypoint information displays may be toggled on/off. | ![]() |
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The NAV/GPS switches control the autopilot mode of
operation, when the autopilot is in NAV
mode. When GPS is selected, the autopilot will automatically follow
the GPS heading. A flight plan must be active for this mode to
operate. The status indicator will illuminate when the system is in
GPS mode.
The HSI Annunciator above the attitude indicator should change from NAV to GPS. |
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The NAV 2 Radio features:
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In each
Nav/Com unit, only the standby frequency is tuned. The frequency being tuned should be
highlighted
light blue.
Tune in the desired frequency, then make this the active frequency by pressing either the C<-> or V<-> frequency switcher to the left of the respective display. |
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The autopilot is a faithful reproduction of the one that is currently being delivered with the Commander 115. | The Master Switch is located on the lower left-hand side of the autopilot. You should see RDY in the Autopilot Annunciator and on the autopilot display when the Autopilot/ Flight Director System has been engaged |
The
Flight Director switch is directly to the right of it. When the Flight
Director is active, the flight director display will be visible on the
attitude indicator. The Flight Director becomes active automatically when the autopilot
main power is activated.
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The knob on the right-hand side of the autopilot control is used to select the desired altitude hold level |
Press the button labeled "VS" Data to change the digital display from altitude level to vertical speed display. | ![]() |
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The buttons labeled "UP" and "DN" control the Vertical Speed level. |
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The remote Autopilot Annunciator Display on the lower right-hand side of the main instrument panel will display the current operation mode of the Autopilot Flight Director System. |
When the GPS switch on the NAV 1 radio has been selected, the autopilot heading will be slaved to the GPS. If you have an FS flight plan loaded, the autopilot heading will lock to the next waypoint bearing. "GPS" will be displayed on both the remote annunciator, and on the autopilot control panel. | ![]() |
On the transponder, you will see a self-test screen for several seconds when first powered up. Squawk codes are simply dialed in on the
numeric keypad pressing the numbers 0 through 7 in sequence. Numbers 8 and 9 are not used. |
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The
unit is in broadcast mode by default. This means that ATC will be
able to interrogate the transponder for altitude and identity. The modes
may be toggled off if desired.
When the FUNC button is pressed, the unit will display flight level from pressure altitude when the aircraft is above 10,000 feet (i.e. 12,300 feet = FL 123) |
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The ADF receiver tunes similarly to the Nav/com radios. The unit will tune in a 500 Hz increment only once in each direction. |