Cessna 1980 182Q Pilot's Operating Handbook And Flight Manual page 344

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CESSNA 400 NAV/COM
(RT-485A) WITH CESSNA
400 RNAV (RN-478A)
PILOT'S OPERATING HANDBOOK
SUPPLEMENT
4. ID/VOX/T Switch -- PRESS to T and HOLD at T; course deviation
pointer centers, NAV/TO-FROM indicator shows FROM and
AP/CPLD and XMIT annunciators light.
5. OBS Knob -- TURN to displace course approximately 10° to eithe ...
side of 0° (while holding ID / VOX/ T to T). Course deviation pOinter
deflects full scale 1n direction corresponding to course displace-
ment. NAV/TO-FROM indicator shows FROM.
6. ID/VOX/T Switch -- RELEASE for normal operation.
NOTE
This test does not fulfill the requirements of FAR 91.25.
MEMORY TEST OPERATION:
1. C Pushbutton -- PUSH for about 2 seconds. Each COM and NAV
MEMORY pushbutton (1,
2 & 3)
will illuminate white, in turn, with
the corresponding preset frequency displayed.
NOTE
If the "keep-alive" circuit has not been interrupted, the
MEMORY test will always start with the last COM
MEMORY selected and cycle through the remaining COM
and NA V preset frequencies. The MEMORY test will
always stop on the last selected COM and NAV preset
frequencies.
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 several related external antennas, will result in a minor
reduction in cruise performance.
10 1 October 1979