Cessna 172R, Operating Handbook

Page: 357 / 500

CESSNA
MODEL 172R
SECTION
9
- SUPPLEMENTS
SUPPLEMENT
1
-
FAA APPROVED
6. Mic Button:
/fp*s
a. To transmit
-
Press button
and speak in microphone.
\
NOTE
During COMM
transmission,
a lighted "T" will appear
between the "COMM" and "STBY" displays to indicate
that
the transceiver is operating in the transmit mode.
I
b.
To Receive -
RELEASE mike button.
NAVIGATION RECEIVER OPERATION:
1
.
NAV Frequency Selector Knobs
~
SELECT desired operating
frequency in "STBY" display.
2.
NAV TRANSFER BUTTON
- PRESS
to
transfer desired
frequency
from
the "STBY" display
into
the "NAV" display.
3. Speaker Selector
(on
audio control
panel) -
SET
to
desired
mode..
4.
NAV Volume
Control -
a. ADJUST
to
desired audio level.
b. PULL
out to
identify station.
VOR OPERATION:
Channel
the NAV Receiver
to
the desired VOR and monitor the
audio
to
positively identify the station. To select an OBS course,
turn
the OBS knob
to set
the desired course under the lubber line.
When a signal is received, the NAV flag will pull
out of
view and
show a "TO" or "FROM" flag as appropriate
for
the selected
course.
LOC OPERATION
Localizer circuitry is
energized
when the NAV Receiver is
channeled
to
an ILS frequency. Monitor the LOC
audio and
positively identify the station. The NAV flag will be
out
of view when
the signal is
of sufficient strength to
be usable.
Feb 28/00
S1-13