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34-20
POSITION DETERMINING – DESCRIPTION AND OPERATION
34-30 POSITION DETERMINING
DESCRIPTION AND OPERATION
The VHF radio navigation system features a navigation device which in accordance with the
installed equipment capability is able to provide navigational data to the VOR/LOC/GS/GPS
indicators.
Primary navigation receiver (optional)
The primary navigation receiver is the Garmin GNS 430W (or as alternative the GNS 530W – see
also Chapter 23): it provides following navigations functions:
• Position and velocity determination using signals transmitted by Global Positioning System (GPS)
Satellites.
• Display of the stored navigation and map database for use by the pilot/flight crew.
• Area navigation functions using the determined position/velocity and stored navigation data.
• Approach navigation functions including WAAS precision approaches and the associated
database.
• Interfacing with other flight instruments such as autopilot, CDI/HIS (including OBS), indicators,
• The VOR/ILS localizer receiver tuning from 108.00 to 117.95 MHz in 50 kHZ increments.
• The ILS glideslope receiver tuning from 328.6 to 335.4 MHz as paired with the frequency tuned
on the VOR / ILS localizer receiver.
• VOR audio Morse code identifier output.
• Remote DME channeling.
The VOR signals provide enroute navigation and terminal area guidance. The ILS/LOC/GS signals
provide approach and landing guidance data.
The marker beacons provide distance to runway data: this information is given by the Audio Panel
(see Chapter 23) .
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