Specifications

SECTION III
MODEL 560 INSTRUMENTATION AND AVIONICS
The marker beacon receivers are in operation whenever the NAV receivers are ON. They operate on
a frequency of 75.00 MHz. The annunciators in the pilots’ primary flight displays are part time displays. A
white box. located in the center right of the display, identifies the location of the marker beacon annunciator
when a localizer frequency is tuned. The marker beacons are annunciated by the appropriately colored
letters: a blue 0 for outer marker, an amber M for middle marker, and a white I for inner marker. The letters
appear in the white box when the marker beacon receiver is activated. A marker beacon tone is transmitted
to the audio control panel and will be heard in the speaker/headset, if selected. A 400 Hz tone is heard at
the outer marker, a 1300 Hz tone at the middle marker, and a 3000 Hz tone for the inner marker.
The audio muting system (MKR MUTE) provides the pilots with a method of temporarily cutting out the
marker beacon audio. When pressed, the marker beacon signal is muted for approximately 30 seconds.
The MKR MUTE switches (push buttons) are located on the audio control panels.
COCKPIT VOICE RECORDER
The Fairchild Solid State Cockpit Voice Recorder (CVR) system provides a continuous 30 minute
recording of all voice communications originating in the cockpit and aft PA audio, via 4 individually recorded
channels. Also provided is a separate 2 hour continuous recording which combines the 4 channels into a
single data stream.
A sensitive cockpit microphone is located on the left side of the glareshield fire tray. The system is
energized when the battery switch is in the BATT position. The control panel contains a TEST switch
which must be pressed for a minimum of 5 seconds to check system operation. The steady illumination of
the test lamp verifies that the recorder is operating properly. An erase button is provided which requires at
least a 2 second depression to initiate the bulk erasure cycle. Bulk erasure can only be accomplished on
the ground.
DIGITAL FLIGHT DATA RECORDER (PARTS 91 AND 135)
On airplanes operated under FAR Part 91 or FAR Part 135, a digital flight data recorder, which
continuously records at least 17 parameters of airplane systems operation, is required. A continuous
recording of 8 hours also is required. The optional recorder installed in the Citation Encore records the
information digitally by a solid state method. Recorder operation begins upon airplane power-up and
continues until electrical power is shut off. Recorder operation requires no attention from crew members.
An annunciator light (RECORDER PWR FAIL) on the instrument panel will illuminate if the flight data
recorder malfunctions or if power to the system fails. The flight data recorder receives its power through a
28 VDC circuit breaker identified FDR on the right circuit breaker panel.
Figure 3-17. Cockpit Voice Recorder Control Panel
I 56OMB-01 Configuration AA 3-33