Cessna 172P - Page 344

21
CESSNA
4OO MAN,KER,
BEACON
(TYPE
R-402A)
PILOT'S
OPER,ATING HANDBOOK
SUPPLEMENT
12
AUDIO
CONTROL
PANET FOR
USE WITH THREE TRANSMITTERS
1.
OFF/VOLUME
CONTR,OL:
OFF/
VOL
-
Turns
the set
on or off
a,nd adjuste the
audio
listening
level,
Clockwise
rotation
of the smaller
knob turns the
set onand increaees the
audio level.
2,
MAR,KER BEACON
ANNUNCIATOR,
LIGHTS:
OUTER, - Light
illuminates
blue to indioate
passa,ge
of outer m&rk€r
beacon.
MIDDLE
-
Light
illuminatos
amber to
indicate
paseage
of mfddle
marker beacon.
INNER
and FAN -
IJight
illuminates
u'hlte to indicate
pa,ssege
of inner or fan
ma,rker
beacon.
3.
SPEAKER/PHONE
SELECTOR
SWITCH:
SPEAKER POSITION -
Selects speaker for aural reception,
PHONE
POSITION
-
Seleots headphone for
aurel
reception.
4, HI/LO/TEST
SELECTOR,
SWITCH:
HI POSITION -
Receiver
sensitivlty is
poeltioned
for
airway flying.
LO POSITION -
Receiver seneitivity is
positioned
for ILS approaches.
TEST POSITION
-
Illuminates
all a.Ânunciator
lights
in
the full brlght
poeitioD
to
verify
operation
of a,nnuncia,tor ligbts.
5. LIGHT
DIMMING
CONTROL:
BRT -
Provid€s
light
dimmlng for
the a,nnunoietor
lightÊ.
Clookwise
rotation
of
the larger
knob
increases light
intensity.
Figure 2.
Cessna
400 Marker
Beacon
Operating
Controls
and ludicator
Lights Supplied With
Three Transmitters.
4
30
May 1980