Cessna 1980 182Q Pilot's Operating Handbook And Flight Manual page 263

PILOT'S OPERATING HANDBOOK
SUPPLEMENT
16
CESSNA 300 ADF
(TYPE R-546E)
5. VOL Control -- ADJUST to desired listening level.
NOTE
A 1000-Hz tone is heard in the audio output when a CW
signal (Morse Code) is tuned in properly.
SECTION 5
PERFORMANCE
There is no change
to
the airplane performance when this avionic
equipment is installed. However, the installation of an externally mounted
antenna or related external antennas, will result in a minor reduction in
cruise performance.
1 October 1979
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