CESSNA
SECTION
7
MODEL 152
AIRPLANE & SYSTEMS
DESCRIPTIONS
1 July 1978
7-35
SPEAKER SIDETONE VOLUME CONTROL
A speaker sidetone volume control is a feature of audio control panels used on airplanes not
equipped with marker beacon receivers. The control is used to adjust the level of sidetone
volume heard on the airplane speaker only. Sidetone volume heard on a headset is not
externally adjustable. Rotate the knob, labeled SIDETONE VOL, clockwise to increase
speaker sidetone volume and counterclockwise to decrease it. Be aware that if the sidetone
level is set too high, it can cause audio feedback (squeal) when transmitting.
MICROPHONE-HEADSET INSTALLATIONS
Three types of microphone-headset installations are offered. The standard system provided
with avionics equipment includes a hand-held microphone and separate headset. The keying
switch for this microphone is on the microphone. Two optional microphone-headset
installations are also available; these feature a single-unit microphone-headset combination
which permits the pilot to conduct radio communications without interrupting other control
operations to handle a hand-held microphone. One microphone-headset combination is
offered without a padded headset and the other version has a padded headset. The
microphone-headset combinations utilize a remote keying switch located on the left grip of the
pilot's control wheel. The microphone and headset jacks are located on the pedestal below the
instrument panel. Audio to all three headsets is controlled by the individual audio selector
switches and adjusted for volume level by using the selected receiver volume controls.
NOTE
When transmitting, the pilot should key the microphone, place the microphone as
close as possible to the lips and speak directly into it.
STATIC DISCHARGERS
If frequent IFR flights are planned, installation of wick-type static dischargers is recommended
to improve radio communications during flight through dust or various forms of precipitation
(rain, snow or ice crystals). Under these conditions, the build-up and discharge of static
electricity from the trailing edges of the wings, rudder, elevator, propeller tips, and radio
antennas can result in loss of usable radio signals on all communications and navigation radio
equipment. Usually the ADF is first to be affected and VHF communication equipment is the
last to be affected.
Installation of static dischargers reduces interferences from precipitation static, but it is
possible to encounter severe precipitation static conditions which might cause the loss of radio
signals, even with static dischargers installed. Whenever possible, avoid known sever
precipitation areas to prevent loss of dependable radio signals. If avoidance is impractical,
minimize airspeed and temporary loss of radio signals while in these areas
Summary of Contents for 152 1979
Page 8: ...CESSNA GENERAL MODEL 152 1 July 1978 1 2 Figure 1 1 Three View ...
Page 50: ...CESSNA SECTION 4 MODEL 152 NORMAL PROCEDURES 1 July 1978 4 12 ...
Page 62: ...CESSNA SECTION 5 MODEL 152 PERFORMANCE 1 July 1978 5 2 ...
Page 82: ...CESSNA SECTION 6 MODEL 152 WEIGHT BALANCE EQUIPMENT LIST 1 July 1978 6 2 ...
Page 87: ...CESSNA SECTION 6 MODEL 152 WEIGHT BALANCE EQUIPMENT LIST 1 July 1978 6 7 ...
Page 88: ...CESSNA SECTION 6 MODEL 152 WEIGHT BALANCE EQUIPMENT LIST 1 July 1978 6 8 ...
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Page 137: ...CESSNA SECTION 8 MODEL 152 HANDLING SERVICE MAINTENANCE 1 July 1978 8 2 ...