Specifications
CESSNA SECTION 9 - SUPPLEMENTS
MODEL 172R NAV III SUPPLEMENT 3
GFC 700 AFCS
U.S.
FAA APPROVED
GENERAL (Continued)
6. FREQUENCY SELECT KNOBS - Selects the standby frequency
when FRQ is displayed and directly selects the active frequency
whenever either of the time functions is selected. The frequency
selector knobs may be turned either clockwise or
counterclockwise. The small knob is pulled out to tune the 1's.
The small knob is pushed in to tune the 10's. The outer knob
tunes the 100's with rollover into the 1000's up to 1799. These
knobs are also used to set the desired time when the elapsed
timer is used in the countdown mode.
7. ON/OFF/VOLUME CONTROL SWITCH (ON/OFF/VOL) -
Controls power and audio output level. Turn the control switch
clockwise from the OFF position to energize the receiver and
increase audio volume. The KR87 has audio muting which
causes the audio output to be muted unless the receiver is
locked on a valid station.
8. SET/RESET ELAPSED TIMER BUTTON (SET/RST) - The SET/
RST button resets the elapsed timer whether it is being
displayed or not.
9. FLIGHT TIMER/ELAPSED TIMER MODE SELECTOR
BUTTON (FLT/ET) - The FLT/ET button selects either Flight
Timer mode or Elapsed Timer mode when pushed.
10. FREQUENCY TRANSFER BUTTON (FRQ) - The FRQ transfer
button interchanges the active and standby frequencies when
pushed.
11. BFO (Beat Frequency Oscillator) BUTTON - The BFO button
selects the BFO mode when pushed in. (See note under item 3).
12. ADF BUTTON - The ADF button selects either the ANT mode or
the ADF mode. The ANT mode is selected when the ADF button
is in the out position. The ADF mode is selected when the ADF
button is pushed in.
13. LUBBER LINE - Indicates magnetic heading of the airplane.
14. ROTATING COMPASS ROSE (HSI COMPASS CARD) - The
rotating compass rose turns as the heading of the airplane
changes. The magnetic heading of the airplane is under the
lubber line.
15. BEARING POINTER - Shows magnetic bearing to the station.
16. BEARING INFORMATION WINDOW - Shows the type of
pointer that is being used as the ADF bearing pointer. If ADF is
not shown, push the BRG1 or BRG2 softkey until ADF is shown.
172RPHBUS-S3-00
S3-7