Cessna 172P - DME (TYPE 451 WITH IND-450 C INDICATOR)

PILOT'S
OPERATING
HANDBOOK
SUPPLEMENT
104
DME
(TYPE
4õ1)
SUPPLEMENT
DME
(TYPE
451
WITH IND-4sOC
INDICATOR)
sEcTloN
I
GENERAL
The DME-4õ1 systom
consists of a
panel-mounted
IND-4õ0C
Indicator'
a
remotely-mounted TCR-451
Transceiver
and an externally-mounted
antenna.
Except for selection
of the
operatingchanuel,
which is selectedbythe
VHF
navigation receiver frequency
seleotor
switches, the DME-4õ1
sys-
tem is
capable
of independent
operation.
The DME-4õ1 transmits
interro-
gating pulse pairs
on
200
channols between
1041 MHz
and
1150
MHz;
it
receives associated
ground-to-air
replies between 978
MHz and
1213 MHz.
The
IND-450C digitally
displays
distances to or from the
selçcted station
up to 200 nautioal miles,
aircraft
ground
speed
from
30 to
399 knots,
or time-
to-station with a
maximum time
o1 120 minutes. A Nav mode
selector
switoh
providos
selection of ON/OFF,
Nav 1, Nav 2, Hold and
RNAV
operation. A DME
display
selector
switch
provides
selection
of distance
to
or from station
(NM),
aircraft
ground
speed
(KTS)
or time-to-station
(MIN).
An
ambient
light sensor automatically controls brightness
of
digital display
and
annunciators.
sEcTtoN 2
LIMITATIONS
There
is
no
ohange
to the
airplane limitations
when this
avionic
equipment
is installed.
sEcTroN 3
EMERGENCY
PROCEDURES
There
is no change
to
the
airplane
emergency
procedures
when this
avionic
equipment
is installed.
30 May
1980
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