Cessna TR182 1979 Pilot Operating Handbook page 216

DME
(TYPE 190)
PILOT'S OPERATING HANDBOOK
SUPPLEMENT
1. READOUT WINDOW - Displays function readout in nautical miles (distance-to-
station), minutes (time-to-station) or knots (ground speed).
2. R-NAV INDICATOR LAMP - The green R-NAV indicator lamp is provided to
indicate the DME is coupled to an R-NAV system. Since this DME is not factory
installed with an R-NA V system on Cessna airplanes, the R-NA V indicator lamp
should never be illuminated. However, if anR-NAV system is coupled to the DME,
and when in R-NAV mode, the R-NAV lamp will light which indicates that the
distance readout is the "way point" instead of the DME station. The DME can only
give distance (MILES) in R-Nav mode.
3. REMOTE CHANNELING SELECTOR - Two position selector. In the first posi-
tion, the DME will utilize the frequency set by the DME channeling knobs. In the
second position, the MHz digits will utilize the frequency set by the NAV 1 unit's
channeling knobs.
4. WHOLE MEGAHERTZ SELECTOR KNOB - Selects operating frequency in 1-
MHz steps between 108 and 117 MHz.
5. FREQUENCY INDICATOR - Shows operating frequency selected on the DME or
displays remote (REM) flag to indicate DME is operating on a frequency selected
by the remote NAV 1 receiver.
6. FRACTIONAL MEGAHERTZ SELECTOR KNOB - Selects operating frequency
in 50 kHz steps. This knob has two positions, one for the 0 and one for the 5.
7. FRACTIONAL MEGAHERTZ SELECTOR KNOB - Selects operating frequency
in tenths of a Megahertz (0-9).
Figure 1. DME 190 Operating Controls (Sheet 1 of 2)
2
1 October 1978