User's Manual

FLITELINE AVIONICS SYSTEM
PILOT’S GUIDE
Publication No. 150-047012 Page 43
Rev. D Dec 2005
CDF-552 Controls (BCD Interface)
CHELTON
ADF
PWR
1749.5
ACT
1
ANT BFOADF

190.5
MODE
VOL
TUNE
Outer Knob
Mode Selector
ANT - Enables the ADF System and the
non-directional sense antenna. The last
frequencies displayed reappear on the
display. Frequency tuning is enabled, but
no direction-finding capability exists in this
mode. External pointers park horizontally.
Volume may be adjusted for comfortable
reception.
Note: Certain BCD tuned ADF models with
a top mounted antenna will park the
external pointer at 90 degrees and a
bottom mounted antenna will park at
270 degrees
Other models will park the external
pointer no matter where the antenna
is located.
ADF - Standard direction finding mode. External
indicators point relative bearing to the tuned
station.
CHELTON
ADF
PWR
ACT
1
ANT BFOADF

190.5
MODE
VOL
TUNE
Outer Knob
1749.5
Mode Selector Continued…
BFO - (Beat Frequency Oscillator or Tone)
Enables a 1,000-Hz tone to be added to audio
identifying interrupted-carrier signals (also known
as cw keyed stations).