Installation manual

AMX240 Audio Panel Installation Manual
200-890-0240 Rev. 02
3.4.1 Cell phone Sidetone
As shipped from Avidyne, the AMX240 provides cellular telephone sidetone (the user’s voice fed back to the hea d-
set). Some cell phones provide sidetone. In AMX240 audio panels, Telephone sidetone can be disabled by holding
the (Nav 2 ) button for more than one second when power is on.
3.5 Speaker Amplifier (6)
SPKR stands for speaker. This switch will place all selected audio on the cockpit speaker
when this switch is selected. Except for certain unswitched audios, the speaker ampli- fier is not
active in the "Split Mode”.
Depending on installation, important audio annunciations such as radar altimeter or autopilot
disconnect will come over the speaker even if it is not selected, while other unswitched, but muted inputs, such as
GPS alerts, will only be present if the SPKR button is selected. Consult your professional avionics installer for these
important configuration details.
3.5.1.1 Public Address Function
To access PA function, hold the SPKR button for more than one second. The pilot microphone will be heard on the
speaker when the pilot PTT is used. The copilot can continue to use the selected com radio while the pilot will now
be heard over the speaker. During Public Address, the SPKR button will flash. To exit PA mode, push SPKR again
for more than one second or simple cycle power on the audio panel.
Note: To address all passengers and crew, we recommend putting the audio panel intercom in “ALL” mode, when
making a PA announcement.
3.6 Marker Beacon Operation (1)
The Marker Beacon Receiver uses visual and audio indicators to alert you when the aircraft passes over a 75 MHz
transmitter.
The Blue lamp, labeled “O”, is the Outer Marker lamp and has an associated 400-Hertz 'dash' tone. The lamp and
tone will be keyed at a rate of two tones/flashes per second when the aircraft is in the range of the Outer Marker
Beacon.
The Amber lamp, labeled “M”, is the Middle Marker lamp and is coupled with a 1300 Hertz
tone. It is keyed alternately with short 'dot' and long 'dash' bursts at 95 combinations per mi-
nute.
The White lamp, labeled “I”, is the Inner marker and has a 3000 Hertz 'dot' tone. The lamp and tone will be keyed at
a rate of six times per second.
The audio from the Marker Beacon Receiver can be heard by selecting the "MKR" push-
button switch. To adjust the volume level, there is a service adjustment located on the top of the
unit.
Holding the MKR button for one second activates marker lamp test, and illuminates all three
lamps simultaneously to assure the lamps (internal and external) are in working order. TST does
not activate MM autopilot sense output.
Pressing the MUTE button while the beacon audio is active will mute the audio until the next beacon is received.
An external switch pushbutton is used to set the receiver sensitivity. Default is “Low” sense.
3.7 Intercom Operation
3.7.1 IntelliVox® VOX-Squelch
No adjustment of the IntelliVox® squelch control is necessary. There is no field adjustment. Through three individu-
al signal processors, the ambient noise appearing in all six microphones is constantly being sampled. Non-voice sig-
nals are blocked. When someone speaks, only their microphone circuit opens, placing their voice on the intercom.
The system is designed to block continuous tones; therefore people humming or whistling in monotone may be
blocked after a few moments.
AMX240 Audio Panel Installation Manual
200-890-0240 Rev. 02
3.4.1 Cell phone Sidetone
As shipped from Avidyne, the AMX240 provides cellular telephone sidetone (the user’s voice fed back to the hea d-
set). Some cell phones provide sidetone. In AMX240 audio panels, Telephone sidetone can be disabled by holding
the (Nav 2 ) button for more than one second when power is on.
3.5 Speaker Amplifier (6)
SPKR stands for speaker. This switch will place all selected audio on the cockpit speaker
when this switch is selected. Except for certain unswitched audios, the speaker ampli- fier is not
active in the "Split Mode”.
Depending on installation, important audio annunciations such as radar altimeter or autopilot
disconnect will come over the speaker even if it is not selected, while other unswitched, but muted inputs, such as
GPS alerts, will only be present if the SPKR button is selected. Consult your professional avionics installer for these
important configuration details.
3.5.1.1 Public Address Function
To access PA function, hold the SPKR button for more than one second. The pilot microphone will be heard on the
speaker when the pilot PTT is used. The copilot can continue to use the selected com radio while the pilot will now
be heard over the speaker. During Public Address, the SPKR button will flash. To exit PA mode, push SPKR again
for more than one second or simple cycle power on the audio panel.
Note: To address all passengers and crew, we recommend putting the audio panel intercom in “ALL” mode, when
making a PA announcement.
3.6 Marker Beacon Operation (1)
The Marker Beacon Receiver uses visual and audio indicators to alert you when the aircraft passes over a 75 MHz
transmitter.
The Blue lamp, labeled “O”, is the Outer Marker lamp and has an associated 400-Hertz 'dash' tone. The lamp and
tone will be keyed at a rate of two tones/flashes per second when the aircraft is in the range of the Outer Marker
Beacon.
The Amber lamp, labeled “M”, is the Middle Marker lamp and is coupled with a 1300 Hertz
tone. It is keyed alternately with short 'dot' and long 'dash' bursts at 95 combinations per mi-
nute.
The White lamp, labeled “I”, is the Inner marker and has a 3000 Hertz 'dot' tone. The lamp and tone will be keyed at
a rate of six times per second.
The audio from the Marker Beacon Receiver can be heard by selecting the "MKR" push-
button switch. To adjust the volume level, there is a service adjustment located on the top of the
unit.
Holding the MKR button for one second activates marker lamp test, and illuminates all three
lamps simultaneously to assure the lamps (internal and external) are in working order. TST does
not activate MM autopilot sense output.
Pressing the MUTE button while the beacon audio is active will mute the audio until the next beacon is received.
An external switch pushbutton is used to set the receiver sensitivity. Default is “Low” sense.
3.7 Intercom Operation
3.7.1 IntelliVox® VOX-Squelch
No adjustment of the IntelliVox® squelch control is necessary. There is no field adjustment. Through three individu-
al signal processors, the ambient noise appearing in all six microphones is constantly being sampled. Non-voice sig-
nals are blocked. When someone speaks, only their microphone circuit opens, placing their voice on the intercom.
The system is designed to block continuous tones; therefore people humming or whistling in monotone may be
blocked after a few moments.
AMX240 Audio Panel Installation Manual
200-890-0240 Rev. 02
3.4.1 Cell phone Sidetone
As shipped from Avidyne, the AMX240 provides cellular telephone sidetone (the user’s voice fed back to the hea d-
set). Some cell phones provide sidetone. In AMX240 audio panels, Telephone sidetone can be disabled by holding
the (Nav 2 ) button for more than one second when power is on.
3.5 Speaker Amplifier (6)
SPKR stands for speaker. This switch will place all selected audio on the cockpit speaker
when this switch is selected. Except for certain unswitched audios, the speaker ampli- fier is not
active in the "Split Mode”.
Depending on installation, important audio annunciations such as radar altimeter or autopilot
disconnect will come over the speaker even if it is not selected, while other unswitched, but muted inputs, such as
GPS alerts, will only be present if the SPKR button is selected. Consult your professional avionics installer for these
important configuration details.
3.5.1.1 Public Address Function
To access PA function, hold the SPKR button for more than one second. The pilot microphone will be heard on the
speaker when the pilot PTT is used. The copilot can continue to use the selected com radio while the pilot will now
be heard over the speaker. During Public Address, the SPKR button will flash. To exit PA mode, push SPKR again
for more than one second or simple cycle power on the audio panel.
Note: To address all passengers and crew, we recommend putting the audio panel intercom in “ALL” mode, when
making a PA announcement.
3.6 Marker Beacon Operation (1)
The Marker Beacon Receiver uses visual and audio indicators to alert you when the aircraft passes over a 75 MHz
transmitter.
The Blue lamp, labeled “O”, is the Outer Marker lamp and has an associated 400-Hertz 'dash' tone. The lamp and
tone will be keyed at a rate of two tones/flashes per second when the aircraft is in the range of the Outer Marker
Beacon.
The Amber lamp, labeled “M”, is the Middle Marker lamp and is coupled with a 1300 Hertz
tone. It is keyed alternately with short 'dot' and long 'dash' bursts at 95 combinations per mi-
nute.
The White lamp, labeled “I”, is the Inner marker and has a 3000 Hertz 'dot' tone. The lamp and tone will be keyed at
a rate of six times per second.
The audio from the Marker Beacon Receiver can be heard by selecting the "MKR" push-
button switch. To adjust the volume level, there is a service adjustment located on the top of the
unit.
Holding the MKR button for one second activates marker lamp test, and illuminates all three
lamps simultaneously to assure the lamps (internal and external) are in working order. TST does
not activate MM autopilot sense output.
Pressing the MUTE button while the beacon audio is active will mute the audio until the next beacon is received.
An external switch pushbutton is used to set the receiver sensitivity. Default is “Low” sense.
3.7 Intercom Operation
3.7.1 IntelliVox® VOX-Squelch
No adjustment of the IntelliVox® squelch control is necessary. There is no field adjustment. Through three individu-
al signal processors, the ambient noise appearing in all six microphones is constantly being sampled. Non-voice sig-
nals are blocked. When someone speaks, only their microphone circuit opens, placing their voice on the intercom.
The system is designed to block continuous tones; therefore people humming or whistling in monotone may be
blocked after a few moments.