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airplane radio receptions or pilot transmissions.
CREW Pilot and copilot are connected on one intercom channel and
have exclusive access to the aircraft radios. They may also
listen to Music1. Passengers can continue to communicate
with themselves without interrupting the Crew and also may
listen to Music2.
ALL All parties will hear the aircraft radio, intercom, and Music1.
The music volume increases gradually back to the original
level after communications have been completed. Both pilot
and copilot have access to the COM transceivers.
Mode Pilot Hears Copilot Hears Passenger Hears
PILOT A/C Radios
Pilot
Passengers
Copilot
Music1
Passengers
Copilot
Music1
CREW A/C Radios
Pilot/Copilot
Music1
A/C Radios
Copilot/Pilot
Music1
Passengers
Music2
ALL A/C Radio
Pilot/Copilot
Passengers
Music1
A/C Radio Pilot/
Copilot
Passengers
Music1
A/C Radio
Pilot/Copilot
Passengers
Music1
Revision 02: 07-18-05
P/N 11934-S01 9 of 10
Cirrus Design Section 9
SR20 Supplements
Marker beacon audio is selected by pressing the MKR push-button. If
no marker beacon signal is being received, pressing the MKR pushbutton
a second time deselects marker beacon audio. However, if
marker beacon is being received, pressing the MKR push-button a
second time will mute the audio but the light will continue to flash.
Pressing the MKR push-button a third time (while marker beacon
audio is muted) deselects marker beacon audio. Marker beacon audio
muting automatically disables when the current signal is no longer
received.
• Note •
The marker beacon lamps (O, M, A) operate independently of
the audio and cannot be disabled.
Marker beacon light and audio keying for ILS approach are
summarized below:
Marker Beacon Sensitivity
The SENS push-button on the left side of the panel is used to set the
marker beacon receiver sensitivity. The selected sensitivity level is
indicated by illumination of the HIGH or LOW LED. When HIGH
sensitivity is selected, the outer marker beacon tone will sound farther
out. Selecting LOW sensitivity at this point allows more accurate
location of the Outer Marker. Typically, HIGH sensitivity is selected
until the outer marker tone is heard, and then LOW sensitivity is
selected for more accurate outer marker location.
O (Blue) Outer Marker light and associated 400 Hertz tone. The
light and tone are keyed at a rate of two tones/flashes per
second.
M (Amber) Middle Marker light and associated 1300 Hertz tone. The
light and tone are keyed alternately with short and long
bursts.
A (White) Airway/Inner Marker light and associated 3000 Hertz
tone. The light and tone are keyed at a rate of six times
per second.
Revision 02: 07-18-05
10 of 10 P/N 11934-S01
Section 9 Cirrus Design
Supplements SR20
XM Radio System (Optional Installation)
• Note •
For a detailed operating instructions, refer to the XM Radio
Wireless Controller User Instructions, Document No.
XMC050-4, original release or later. MFD software
partnumber 530-00162-000 or later is required for installation
of XM Radio System.
Subscription to a XM Radio System Service Package is
required for operation. Contact XM Satellite Radio at
800.985.9200 for subscription information.
The optional XM Radio System provides satellite broadcast audio
entertainment and information to aircraft occupants via the Garmin
GMA 340 Audio System while traveling anywhere within the
contiguous United States of America.
The XM receiver, installed in the co-pilot side of the center console,
receives audio information via its integral antenna from two
geosynchronous XM broadcast satellites. The audio signal is then sent
by wire to the Audio Control Panel’s Music1 and Music2 AUDIO INPUT
jacks. System operation is provided by a hand held, wireless
controller.
• When initially powered, the XM radio volume is set to mute and
will remain muted until the XM radio establishes communication
with the wireless controller.
• System volume for both AUDIO INPUT jacks is controlled
simultaneously via the wireless controller.
• In the event of wireless controller failure during flight, cycling
the Weather/Stormscope circuit breaker will reset the volume to
mute.
• XM radio is the default audio heard on the AUDIO INPUT jacks.
If a personal entertainment device such as a CD player is
plugged into either AUDIO INPUT jacks, the external source will
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