Cessna 172P - Page 324

18
CESSNA
3OO TR,ANSPONDER
AND
ENCODING
ALTIMETER
PILOT'S
OPER,ATING
HANDBOOK
SUPPLEMENT
t2
3
45
67
l0
ll
l2
1, FT
NCTION SlttIlCH
-
Controls appllcation
of
power
and selects transponder
operating
mode as
followe:
OFF
-
lurns
sot off.
SBY
-
Turns set
on for equlpment
warm-up.
ON - Turns
eet on and
eneble8 transponder
to transmit
Modo
A
(airoraft
identificatlon) r6ply
pulses.
ALT
-
Turns
set on and enables traneponder
to transmit
either Mode A
(alrcraft
identification)
reply
pulses
o¡
Mode
C
(altitude
reporting)
pulses
sêleoted
eutometlca,lly by the interrogating
signal,
2, F,EPLY
LAMP
-
Lamp flashes
to
indicate
transmlssion
of
reply
pulses; glows
steadily to indlcate
tra,nsmisslon
of IDENT
pulee
or satlsfactory
self-test opera-
tion.
(F,eply
Lamp will
olso
glow
steadily
during
lnitia,l w&rm-up
period.)
Figure
1.
Cessna
300 Transponder
a,ud Encoding Altimeter
(Sheet
I of 2)
t3
2
1
I
0
o
O
0
r0v
-/
(.
a'
.J\
5
I
30 May 1980