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Marker Beacon
The VHF navigation radios process marker beacon signals. the outer, middle and inner beacon positions are indicated by visual cues and aural tones. Visual indications are provided as boxed, color-coded abbreviations, located at the bottom of the PFD’s attitude indicator. Aural tones are also selectable from the audio control panel. The HI/LO sensitivity of the marker beacon function can be adjusted from the VHF navigation tuning windows.
As the aircraft passes over each marker beacon position, the following events occur:
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Outer – cyan OM legend, accompanied by a series of dashes, modulated at 400 Hz.
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Middle – yellow MM legend, accompanied by a series of dots and dashes, modulated at 1300 Hz.
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Airway/Inner – white IM legend, accompanied by a series of dots, modulated at 3000 Hz.
NAVIGATION SYSTEMS Description Vol. 2 17.10.46
Oct 05/06
LOC/GS and Marker Beacon Indications Figure 17.10.46
LOC/GS Failure Indications
In the event of a LOC or GS failure, the associated diamond pointer is removed, and a red-boxed LOC or GS indication is displayed next to the deviation scale.
NAVIGATION SYSTEMS Description Vol. 2 17.10.47
Oct 05/06
LOC/GS Failure Indications Figure 17.10.47
VHF NAV Bearing Pointer
The bearing pointers may be selected from the PFD Main Menu, BRG SRC submenu. Actuating the BRG SRC button on the display control panel (DCP) provides direct access to the bearing source submenu. The submenu includes a VOR selection, which allows bearing data and pointers to be presented on the ROSE and PPOS formats on the PFDs and MFDs.
Bearing indications are accompanied by VOR station identification, as well as aircraft distance to bearing source. Bearing distance and station identification are not displayed if the bearing source is also the active NAV source. Bearing distance is removed if DME hold is selected, or if the VHF Nav radio is tuned to a localizer frequency.
NAVIGATION SYSTEMS Description Vol. 2 17.10.48
Oct 05/06
VHF NAV Bearing Pointer Selection
Figure 17.10.48
DISTANCE MEASURING EQUIPMENT (DME) SYSTEM Description The aircraft is equipped with two DME systems. Each DME system provides calculations of slant range from the aircraft to the DME ground stations. The information is used for position fixing, enroute separation, approach to an airport, holding a given position, and determining ground speed.
Components and Operation
Each DME system includes a DME transceiver, located in the avionics compartment, and a DME antenna, located on the bottom of the fuselage.
NAVIGATION SYSTEMS Description Vol. 2 17.10.49
Oct 05/06
DME System Components Figure 17.10.49
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本文链接地址：庞巴迪挑战者605公务机机组操作手册 CL605-CHAPTER 17 -导航系统 NAVIGATION SYSTEMS(23)
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