Navigation Radios - Garmin G1000 Pilot's Manual

Beacon
Outer Marker
Middle Marker
Airway/Inner Marker
Inner Marker

NAVIGATION RADIOS

Pressing NAV1, NAV2 or optional DME or ADF
selects and deselects the radio source and the annunciator
(Figure 5-5). Selected audio can be heard over the
headset and the speakers. All radio keys can be selected
independently.
When no further navigation radio audio is heard, the
amount of background noise is reduced by the Master
Avionics Squelch (MASQ) feature.
190-00498-00 Rev. A
Audio Frequency Audio Keying
— — —
400 Hz
• — • —
1300 Hz
3000 Hz
Table 5-1 Marker Beacon Signal Characteristics
Middle Marker
Figure 5-4 Marker Beacon Signal Indicator Lights on the PFD
Garmin G1000 Pilot's Guide for Cessna Nav III
Rate
2 dashes per second
95 dot-dash combinations
per minute
• • • • 6 dots per second
Disabled on
Cessna NAV III
aircraft
Figure 5-5 Navigation Radio Keys
AUDIO PANEL
Lamp Color
Blue
Amber
White
Outer Marker
5-7