Cessna 172P - Page 262

10
DME
(TYPE
1e0)
PILOT'S
OPER,ATING
HANDBOOK
SUPPLEMENT
sEcTtoN
3
EMERGENCY
PROCEDURES
.
There
is no change
to
the airplane
emergency
procedures
when
this
avionic
equipment
is instatled.
sEcTtoN
4
NORMAL
PROCEDURES
TO
OPERATE:
L.
Mode
Selector
Switch
--
SELECT
desired
DME function.
2.
Frequency
Selector
Knobs --
SEILEOT
desired frequency
and allow
eguipment
to warm-up
at least
Z minutes.
NOTE
If
remote
channeling
selector
is
set in REM position,
select
the
desired
frequency
on the
#1 Nav radio.
3.
PUSH
TEST
Control
--
PUSH
and
observe
reading
of 188.8 in
function
window,
4. DIM
Control
--
ADJUST.
5.
DME
SPEAKER/pHoNE
selector
Switch
(on
a,udio
control
panel)
--
SELECT
as desired.
6.
IDENT
CONTROL
--
ADJUST
audio output in
speaker
orheadset.
7.
Mode
Selector Funstions:
MILES Position
--
Distance-to-Station
is slant range
in nauti-
cal
miles.
MIN Position --
Time-to-Station
when
flying
direcfly to
sta-
tion.
KNOTS
Position
--Ground
Speed in knots
when flyingdirecily
to or
from station,
CAUTION
After the DME
190 has been
turned
OFF, do not
turn it on
again for
5
seconds
to
allow the
protective
circuits to reset.
SECTION
5
PERFORMANCE
There is no
change to
the air.pla,ne
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.
4
30 May 1980