Cessna 400 Dme (Type R-476A) - Cessna 182Q 1979 Pilot Operating Handbook

PILOT'S OPERATING HANDBOOK
SUPPLEMENT
SUPPLEMENT
CESSNA 400 DME
(TYPE R-476A)
CESSNA 400 DME
(TYPE R-476A)
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SECTION 1
GENERAL
The Cessna 400 DME (Type R-476A) is the airborne "interrogator"
portion of a navigation system which supplies continuous. accurate, slant
range distance information from a fixed ground station to an aircraft in
flight.
Except for selection of the operating channel, which is selected by the
VHF navigation receiver frequency selector switches, the Cessna 400 DME
is capable of independent operation. The equipment consists of a panel-
mounted C-476A Control Unit which contains all of the operating controls
and displays, and a remotely mounted RTA-476A Receiver-Transmitter.
The RTA-476A transmits interrogating pulse pairs on 200 channels
between 1041 MHz and 1150 MHz; it receives associated ground-to-air
replies between 978 MHz and 1213 MHz. The C-476A Control Unit digitally
displays distances up to 200 nautical miles and either ground speed or
time-to-station information, as selected. All operating controls and dis-
plays for the DME are shown in Figure 1, and the functions of each are
described.
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.
1 October 1978
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