Cessna 1980 182Q Pilot's Operating Handbook And Flight Manual page 336

28
CESSNA 400 NAV/COM
(RT-485A) WITH CESSNA
400 RNAV (RN-478A)
PILOT'S OPERATING HANDBOOK
SUPPLEMENT
applied to the converter circuits in the RN -478A Area Navigation Compu-
ter. The converter processes the received navigation signal to provide
omni bearing or localizer information for display by the course indicator
CAUTION
If
the RNA V 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) or Automatic Radial Centering (ARC) knob,
and OFF (or NAV)/To-From Indicator Flags. It also includes an RNAV
lamp (RN) which lights when area navigation operation 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 and an optional IN-1048AC Course Deviation Indicator is also
offered when Automatic Radial Centering (ARC) is desired. When the
optional IN -1048AC Course Deviation Indicator is installed, an Automatic
Radial Centering lamp (ARC) is incorporated in the CDI to alert the pilot
that the Automatic Radial Centering feature has been selected.
All operating controls and indicators for the Cessna 400 Nav / Com are
included on the front panel of the RT-485A 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
panels 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.
2
1 October 1979