.3
CESSNA 300 NAV/COM
PILOT'S OPERATING HANDBOOK
(TYPE RT-385A)
SUPPLEMENT
SECTION 4
NORMAL PROCEDURES
COMMUNICATION RECEIVER-TRANSMITTER OPERATION:
1.
COM OFF/ VOL Control -- TURN ON; adjust to desired audio level.
2.
XMTR SEL Switch (on audio control panel) -- SET to desired
Nav/Com Radio.
3.
SPEAKER/PHONE Selector Switches (on audio control panel) --
SET to desired mode.
4.
5-0 Fractional MHz Selector Switch -- SELECT desired operating
frequency (does not affect navigation frequencies).
5.
COM Frequency Selector Switch -- SELECT desired operating
frequency.
6.
SQ Control -- ROTATE counterclockwise to just eliminate back-
ground noise. Adjustment should be checked periodically to
assure optimum reception.
7.
Mike Button:
a.
To Transmit -- DEPRESS and SPEAK into microphone.
NOTE
Sidetone may be selected by placing the AUTO selector
switch (on audio control panel) in either the SPEAKER or
PHONE position. Sidetone may be eliminated by placing
the AUTO selector switch in the OFF position. Adjustment
of sidetone on audio control panels supplied with three
transmitters cannot be accomplished externally. How-
ever, audio control panels supplied with two or less
transmitters have sidetone adjustment pots that are
accessible through the front of the audio control panel with
a small, screwdriver.
b.
To Receive -- RELEASE mike button.
NAVIGATION OPERATION:
NOTE
The pilot should be aware that on many Cessna airplanes
equipped
with the windshield mounted glide slope
antenna, pilots should avoid use of 2700 ± 100 RPM on
airplanes equipped with a two-bladed propeller or 1800 ±
100 RPM on airplanes equipped with a three-bladed pro-
peller during ILS approaches to avoid oscillations of the
glide slope deviation pointer caused by propeller interfer-
ence.
6
1 July 1979
.3
PILOT'S OPERATING HANDBOOK
CESSNA 300 NAV/COM
SUPPLEMENT
(TYPE RT-385A)
1.
COM OFF/VOL Control -- TURN ON.
2.
SPEAKER/PHONE Selector Switches (on audio control panel) --
SET to desired mode.
3.
NAV Frequency Selector Knobs -- SELECT desired operating
frequency.
4.
NAV VOL -- ADJUST to desired audio level.
5.
ID-VOX-T Switch:
a.
To Identify Station -- SET to ID to hear navigation station
identifier signal.
b.
To Filter Out Station Identifier Signal -- SET to VOX to include
filter in audio circuit.
6.
ARC PUSH-TO/PULL-FROM Knob (If Applicable):
a.
To Use As Conventional OBS -- PLACE in center detent and
select desired course.
b.
To Obtain Bearing TO VOR Station -- PUSH (ARC/PUSH-TO)
knob to inner (momentary on) position.
NOTE
ARC lamp will illuminate amber while the course card is
moving to center with the course deviation pointer. After
alignment has been achieved to reflect bearing to VOR,
automatic radial centering will automatically shut down,
causing the ARC lamp to go out.
c.
To Obtain Continuous Bearing FROM VOR Station -- PULL
(ARC/PULL-FR) knob to outer detent.
NOTE
ARC lamp will illuminate amber, OBS course card will
turn to center the course deviation pointer with a FROM
flag to indicate bearing from VOR station.
7.
OBS Knob (If Applicable) -- SELECT desired course.
1 July 1979
7
