Cessna 172P - Page 318

17
CESSNA
3OO TRANSPONDER
PILOT'S
OPERATING
HANDBOOK
AND AI{TITUDE
ENCODEN,
(BLIND)
SUPPLEMENT
12
3
45
0 I
I
1. FUNCTION
SWITCH
-
CoDtrols applicetlon of
pow6r
oDd
s€lecte transponder
operating mode âs follows:
OFF
SBY
ON
Turns ¡et off.
Tums set on for eguipmeût werm-up
or standby
power.
Turtrs
set on and onsbles transponder to transmlt
Mode A
(alrcraft
identification) reply
pulsee.
Turne
set on a,Dd enables
tr¡nsponder
to trêDÊmit êlth€r
Mode A
(aircralt
identification)
reply
pulsea
or Mode C
(altitude
reporti¡g)
pulãos
eelected automotically by the intsrogstlng
stgual.
ALT
-
2. REPLY LAMP
-
Lamp flashes to indio¡te tr¡nemlaeio¡
of
reply
pul¡e¡;
glowe
steedlly
to hdlcote trangmlseion
of
IDENT
pulse
or
gatlsfÈctory
self-tost
opers-
tion,
(Reply
lamp wlll also
glow
ateedlly duri¡g lnltial w¡rur-up
period.)
Figure 1.
Cossna 300
Transponder
end
Altitude
Encoder
(Blind)
(Sheet
1 of
2)
2
30
May 1980