Nav Operation; Nav Tuning Boxes - Garmin G1000 NXi Pilot's Manual

4.3 NAV OPERATION

NAV TUNING BOXES

Standby Fields – The NAV Frequency Box is composed of four fields; the two standby frequencies are
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on the left. Frequencies in the standby field are displayed in either white or gray. The standby
frequency in the tuning box is white. The other standby frequency is gray.
Frequency Transfer Arrow – Moves between the upper and lower radio frequency fields with the
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Frequency Tuning Box. Indicates which NAV transceiver is selected for frequency transfer between the
Standby and Active fields.
Active Fields – The NAV Frequency Box is composed of four fields; the two active frequencies are on
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the right. An active NAV frequency is displayed in green. The active NAV radio is selected by pressing
the CDI softkey on the PFD. Both active NAV frequencies appearing in white indicate that no NAV
radio is selected.
NAV Tuning Box – Moves between the upper and lower radio standby frequency fields with the
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Frequency Transfer Arrow. Indicates which NAV transceiver is to be tuned in the Standby Field.
Moving the Frequency Tuning Box is accomplished by pushing the NAV Knob on the PFD.
VOR/LOC Morse Code Audio Indication – When the Morse code Identifier audio is on for a NAV
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radio, a white ID replaces the Frequency Transfer Arrow to the left of the active NAV frequency. In
order to listen to either station identifier, press the NAV1 or NAV2 Key on the Audio Panel. Pushing
the VOL/ID Knob turns on/off the Morse code audio only in the radio with the NAV Tuning Box. To
turn on/off both NAV IDs, transfer the NAV Tuning Box between NAV1 and NAV2 by pushing the
small NAV Knob and pushing the VOL/ID Knob again to turn the Morse code off in the other radio.
Decoded Morse Code Station Identifier – The NAV Frequency Box displays the decoded Morse
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Code station identifier that is received from the navigation source. Audio verification of the selected
station identifier can be accomplished by selecting the corresponding NAV radio on the audio panel
and pushing the NAV VOL/ID Knob.
NAV VOLUME – NAV radio volume level can be adjusted from 0 to 100% using the VOL/SQ Knob.
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Turning the knob clockwise increases volume, turning the knob counterclockwise decreases volume.
When adjusting volume using the PFD or MFD VOL/SQ Knob, the level is displayed in place of the
standby frequencies. Volume level indication remains for two seconds after the change.
190-02177-02 Rev. A
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Figure 4-9 NAV Tuning Box Indications
Garmin G1000 NXi Pilot's Guide for the Cessna NAV III
AUDIO PANEL AND CNS
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