Cessna 1980 182Q Pilot's Operating Handbook And Flight Manual page 268

17
CESSNA 300 NAV/COM
(TYPE RT-385A)
PILOT'S OPERATING HANDBOOK
SUPPLEMENT
4
17. NAV/TO-FROM INDICATOR - Operates only with a VOR or localizer signal.
Red NA V position (Flag) indicates' unusable signal. With usable VOR signal,
indicates whether selected course is TO or FROM station. With usable localizer
signal, shows TO.
18. RECIPROCAL COURSE INDEX - Indicates reciprocal of selected VOR course.
19. OMNI BEARING SELECTOR (OBS) - Rotates course card to select desired
course.
20. AUTOMATIC RADIAL CENTERING (ARC-PUSH-TO/PULL-FR) SELECTOR -
In center detent, functions as conventional OBS. Pushed to inner (Momentary On)
position, turns OBS course card to center course deviation pOinter with a TO flag,
then returns to conventional OBS selection. Pulled to outer detent, continuously
drives OBS course card to indicate bearing from VOR station, keeping course
deviation pointer centered, with a FROM flag. ARC function will not operate on
localizer frequencies.
21. AUTOMATIC RADIAL CENTERING (ARC) LAMP - Amber light illuminates
when Automatic Radial Centering is in use. Light dimming is only available
when installed with an audio control panel incorporating the annunciator lights
DAY /NITE selector switch.
22. COURSE CARD - Indicates selected VOR course under course index.
Figure
1.
Cessna 300 Nav/Com (Type RT-385A), Operating Controls
and Indicators (Sheet 2 of 3)
1 October 1979