Cessna TR182 1979 Pilot Operating Handbook page 269

PILOT'S OPERATING HANDBOOK
SUPPLEMENT
CESSNA 300 NAV/COM
(RT-385A) WITH CESSNA
400 RNAV (RN-478A)
ter. The converter processes the received navigation signal to provide
omni bearing or localizer information for display by the course indicator.
CAUTION
If the RNAV set is removed from the airplane or becomes
inoperative, the associated VHF navigation indicator will
be inoperative.
The course indicator includes a Course Deviation Indicator (CDI), an
Omni Bearing Selector (OBS) and OFF ITO-FROM Indicator Flags. It also
includes an RNAV lamp (RN) which lights when area navigation opera-
tion is selected, and a back-course lamp (BC) which lights when back-
course operation is selected. The IN-442AR is offered as the standard
Course Deviation Indicator.
All operating controls and indicators for the Cessna 300 Na.v/ Com are
included on the front panel of the RT-385A Receiver-Transmitter and the
associated Course Deviation Indicator. These controls and indicators are
shown and described in Figure 1. Operating controls for the RN -478A Area
Navigation Computer, which are used for area navigation, and operating
controls for the associated Type R-476A DME are shown in the appropriate
supplements in this manual. Operating controls for the audio control
panel used in conjunction with this radio are shown and described in
Section 7 of this handbook.
SECTION 2
LIMITATIONS
There is no change to the airplane limitations when this avionic
equipment is installed.
SECTION 3
EMERGENCY PROCEDURES
There is no change to the airplane emergency procedures when this
avionic equipment is installed. However, if the frequency readouts fail, the
radio will remain operational on the last frequency selected. The fre-
quency controls should not be moved due to the difficulty of obtaining a
known frequency under this condition.
1 October 1978
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