Specifications

CESSNA SECTION 9 - SUPPLEMENTS
MODEL 172R NAV III SUPPLEMENT 3
GFC 700 AFCS
U.S.
FAA APPROVED
NORMAL PROCEDURES (Continued)
ADF TEST (PREFLIGHT or IN FLIGHT):
1. ADF Button - SELECT ANT mode and note pointer moves to
90° position.
2. ADF Button - SELECT ADF mode and note the pointer moves
without hesitation to the station bearing. Excessive pointer
sluggishness, wavering or reversals indicate a signal that is too
weak or a system malfunction.
TO OPERATE BFO:
1. OFF/VOL Control - ON
2. BFO Button - PRESS ON
3. ADF Selector Buttons (on audio control panel) - SET to desired
mode.
4. VOL Control - ADJUST to desired listening level.
NOTE
A 1000-Hz tone and Morse Code identifier is heard in the
audio output when a CW signal is received.
TO OPERATE FLIGHT TIMER:
1. OFF/VOL Control - ON
2. FLT/ET Mode Button - PRESS (once or twice) until FLT is
annunciated. Timer will already be counting since it is activated
by turning the unit on.
3. OFF/VOL Control - OFF and then ON if it is desired to reset the
flight timer.
TO OPERATE AS A COMMUNICATIONS RECEIVER ONLY:
1. OFF/VOL Control - ON
2. ADF Button - SELECT ANT mode
3. Frequency Selector Knobs - SELECT desired frequency in the
standby frequency display.
4. FRQ Button - PRESS to move the desired frequency from the
standby to the active position.
5. ADF Selector Buttons (on audio control panel) - SET to desired
mode.
6. VOL Control - ADJUST to desired listening level.
(Continued Next Page)
172RPHBUS-S3-00
S3-9