User's Manual

FLITELINE AVIONICS SYSTEM
PILOT’S GUIDE
Publication No. 150-047012 Page 45
Rev. D Dec 2005
Operating the CDF-552
Series III and Fliteline Interface
1. Set the MODE SELECTOR to ANT. Note that the external ADF pointer moves to 90° and stops.
2. If frequencies displayed are not the ones desired, rotate the FREQUENCY KNOBS until the desired
frequency is displayed on the bottom line of the display.
3. Press and release the FREQUENCY TRANSFER button. This exchanges the two displayed
frequencies. The desired frequency is now active.
4. Adjust the VOLUME control to the desired audio level and identify the station represented by the active
frequency displayed.
NOTE: An alternate tuning method is to press and hold the FREQUENCY TRANSFER button for
two seconds before releasing. This removes the standby frequency from the display and
the active frequency may be tuned by rotating FREQUENCY KNOBS. The system is
ready for immediate operation. If desired, press the FREQUENCY TRANSFER button for
two seconds again to restore standby frequency.
5. Rotate the MODE SELECTOR to ADF. Note that the external ADF pointers leave the 90° parked
position and move to indicate the direction to the active station.
6. Rotate the MODE SELECTOR to BRG and read the magnetic bearing shown digitally on the lower line
of the display. Compare this reading with the other ADF displays to assure correct system operation.
7. Return the MODE SELECTOR to ADF for normal ADF operation.
BCD Interface
1. Set the MODE SELECTOR to ANT. Note that the external ADF pointer moves to 90° and stops.
2. If frequencies displayed are not the ones desired, rotate the FREQUENCY KNOBS until the desired
frequency is displayed on the bottom line of the display.
3. Press and release the FREQUENCY TRANSFER button. This exchanges the two displayed
frequencies. The desired frequency is now active.
4. Adjust the VOLUME control to the desired audio level and identify the station represented by the active
frequency displayed.
NOTE: An alternate tuning method is to press and hold the FREQUENCY TRANSFER button for
two seconds before releasing. This removes the standby frequency from the display and
the active frequency may be tuned by rotating FREQUENCY KNOBS. The system is
ready for immediate operation. If desired, press the FREQUENCY TRANSFER button for
two seconds again to restore standby frequency.
5. Rotate the MODE SELECTOR to ADF. Note that the external ADF pointers leave the 90° parked
position and move to indicate the direction to the active station.