Cessna 172P - Page 306

15
CESSNA
3OO
ADF
(TYPE
n-õ468)
PIIJOT'S
OPERATING I{ANDBOOK
ST'PPLEMENT
sEcTroN 3
EMERGENCY
PROCEDURES
There
is no
chauge to the airplane
emergenoy
procedures
wheu
this
avionic
equipment
ls installed.
sEcTroN 4
NORMAL PROCEDURES
TO
OPER,ATE
AS A
COMMUNICATIONS RECEIVEN,
ONLY:
1.
OFF/VOL
Control
--
ON.
2,
Function
Selector Knob
--
REC.
3. Frequency
Selector
Knobs --
SELECT operating frequency.
4. ADF
SPEAKER/PHONE Selector Switch
(on
audio
control
panel)
--
SELECT
speaker or
phone position
as
desired.
õ.
VOL Control
--
ADJUST
to
dssired
llstening
level.
TO
OPER,ATE
AS AN AUTOMATIC DIR,ECTION FINDER,:
1.
OFF/VOL
Control
--
ON.
2, Frequency
Selector Knobs
--
SELECT operating
frequency.
3, ADF
SPEAKER,/PHONE Selector Switch
(on
audio
control
panel)
--
SELECT AS
DESIRED.
4.
Function
Selector Knob
--
ADF
poeition
and note relative bearing
on indicator.
1O
TEST
RELIABILITY OF AUTOMATIC
DIRECTION FINDER,:
1. Function
Selector
Knob
--
ADF'position andnote relative bearing
on
indicator.
2. Function
Selector Knob
--
TEST
position
and observe
that
pointer
moves
away from relative bearing at least 10 to 20 degrees.
3. Funotion
Selector Knob
--
ADF
position
and
observe that
pointer
returns
to same relative bearing as in
step
(1).
TO
OPER,ATE
BFO
1.
OFF/VOL
Control
--
ON.
2, Function
Selector Knob
--
BFO.
3. Frequency
Selector Knobs
--
SELECT operating
frequency.
4.
ADF SPEAKER/PHONE
Selector Switch
(on
audio
control
panel)
--
SELECT speaker or
phone
position
as desired.
4
80 May
1980