Cessna TR182 1979 Pilot Operating Handbook page 266

CESSNA 300 NAV/COM
(RT-385A) WITH CESSNA
400 RNAV (RN-478A)
PILOT'S OPERATING HANDBOOK
SUPPLEMENT
1. COMMUNICATION OPERATING FREQUENCY READOUT (Third-decimal-
place is shown by the position of the "5-0" switch).
2. 5-0 SWITCH - Part of COM Receiver-Transmitter Fractional MHz Frequency
Selector. In "5" position, enables COM frequency readout to display and COM
Fractional MHz Selector to select frequency in .05MHz steps between .025and .975
MHz. In "0" position, enables COM frequency readout to display and COM
Fractional MHz Selector to select frequency in .05MHz steps between .000and .950
MHz.
NOTE
The "5" or "0" may be read as the third decimal digit, which is not
displayed in the Com fractional frequency display.
Figure 1. Cessna 300 Nav/Com Set, Operating Controls and Indicators
(Sheet 1 of 3)
2
1 October 1978