Cessna 1980 182Q Pilot's Operating Handbook And Flight Manual page 270

17
CESSNA 300 NAV/COM
(TYPE RT-385A)
PILOT'S OPERATING HANDBOOK
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:
6
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
airpianes 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.
1 October 1979