Garmin Flight Deck 100 Marine Instruments User Manual


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190-00728-04 Rev. A
Embraer Prodigy
®
Flight Deck 100 Pilot’s Guide
145
AUDIO PANEL AND CNS
MARKER BEACON RECEIVER
NOTE: The marker beacon indicators operate independently of marker beacon audio and cannot be turned
off.
ThemarkerbeaconreceiverisusedaspartoftheILS.Themarkerbeaconreceiverisalwaysonanddetects
any marker beacon signals within the reception range of the aircraft.
The receiver detects the three marker tones – outer, middle, and inner – and provides the marker beacon
annunciationslocatedtotheleftoftheAltimeteronthePFD.
Figure 4-27 Marker Beacon Annunciations on the PFD
Outer Marker
Indication
Middle Marker
Indication
Inner Marker
Indication
Figure 4-28 Marker Beacon Keys
TheAudio Panelsprovidethree differentstatesof markerbeacon operation;On,Muted, andDeselected.
Pressing the
MKR/MUTE
Key selects and deselects marker beacon audio. The key annunciator indicates when
marker beacon audio is selected.
Duringmarkerbeaconaudioreception,pressingthe
MKR/MUTE
Key mutes the audio but does not affect the
markerannunciations(Figure4-27).Themarkertoneissilenced,thenwaitsforthenextmarkertone.The
MKR/MUTE
KeyAnnunciatorisilluminated,indicatingaudiomuting.Theaudioreturnswhenthenextmarker
beaconsignalisreceived.Ifthe
MKR/MUTE
Keyispressedduringsignalreception(O,M,Iindication)while
marker beacon audio is muted, the audio is deselected and the
MKR/MUTE
KeyAnnunciatorisextinguished.
Pressing the HI SENS Key switches between high and low marker beacon receiver sensitivity. The HISENS
function (annunciator illuminated) is used to provide an earlier indication when nearing a marker during an
approach. The LOSENSfunction(annunciatorextinguished)resultsinanarrowermarkerdwellwhileovera
station.
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