Garmin Flight Deck 100 Manuel D’Utilisation

190-00728-04  Rev. A

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The Communication/Navigation/Surveillance (CNS) system includes the Audio Panels, communication radios, 

navigation radios, and Mode S transponders.  The System Overview Section provides a block diagram description 
of the Audio Panels and CNS system interconnection.

CNS operation in the Embraer Phenom 100 is performed by the following Line Replaceable Units (LRUs):

• Primary Flight Display (PFD) (2)

• Multi Function Display (MFD)

• Integrated Avionics Unit (2)

• Audio Panel (2)

• Mode S Transponder (2)

or TCAS II Mode S Transponder

• MFD Control Unit

The MFD/PFD controls are used to tune the communication transceivers and navigation radios.

The two Audio Panels provide the traditional audio selector functions of microphone and receiver audio 

selection. Each Audio Panel includes an intercom system (ICS) between the pilot, copilot, and passengers, a
marker beacon receiver, and a COM clearance recorder.  Ambient noise from the aircraft radios is reduced by a 
feature called Master Avionics Squelch (MASQ).  When no audio is detected, MASQ processing further reduces 
the amount of background noise from the radios.

The Mode S Transponders are controlled with softkeys and the FMS Knob located on the PFD. The Transponder 

Data Box is located to the left of the System Time Box. The data box displays the active four-digit code, mode, 
and a reply status (Figure 4-1).

Adjusting the master volume control affects all radio audio volume and airframe type warnings that are heard 

in the headsets (not the speaker) for the pilot or copilot side Audio Panel.  Radio adjustments made on the 
MFD/PFD controls to compensate for the master volume change on the Audio Panel, also affect the radio levels
for the other pilot. Independent radio volume adjustments made using the Audio Panel Master Volume controls
affect only the audio heard in the corresponding crew position headset.

Radio volume adjustments may be overridden by each crew position independently using the master volume 

control on the Audio Panel for the respective crew position. In addition, the master volume control for each
Audio Panel affects all other system audio output to its designated crew position headset much like volume 
adjustments found on many aviation headsets.