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|  Transponder
Receiver:
3.0 microseconds 0.3
delay . . . . . .
Frequency
1,010 to 1,030 mc (one
maximum when re-
range . . .
preset frequency.
ceived pulses have an
amplitude varying
Type of sig-
from 6.0 to 50 db
nal re-
P u l s a t e d radiofre-
above triggering level.
ceived . .
quency.
b. Contro1, Transponder Set C-2714/
Intermediate
APX-44.
60 mc
1.0 (midfre-
Input voltage and
frequency. . .
quency between points
current re-
3.0 db down from
quirements. . 27.5 volts dc, at 0.2
m a x i m u m response).
ampere.
6.0 mc minimum at 3.0-
c. A n t e n n a A T - 8 8 4 / A P X - 4 4 .
db points.
P o l a r i z a t i o n . . Vertical.
Pattern . . . . . O m n i d i r e c t i o n a l .
Frequency
1.0 mc maximum over
Frequency:
stability. . . .
Reception. . 1,010 to 1,030 mc.
a 24-hour period after
a 3-minute warmup.
Transmis-
sion . . . . 1,090 to 1,110 mc.
Transmitter:
Frequency
1,090 to 1,110 mc (one
range . . .
p r e s e t frequency).
Set AN/APX-44
Type of sig-
nal trans -
a . C o m p o n e n t s . T h e components of
P u l s a t e d radiofre-
mitted . .
Transponder Set AN/APX-44 are listed in
quency.
the basic issue items list (appx III). The
Frequency
major components are illustrated in fig-
3.0 mc maximum drift.
stability
ure 1.
Power
b. Running Spare. A 1 0 - a m p e r e f u s e i s
Minimum 24 db or
output . . .
the only running spare. It is stored in the
maximum 30 db above
f u s e h o l d e r labeled SPARE 10A 27-1/2V,
1 watt, averaged over
l o c a t e d on the front panel of Receiver-
1-radiofrequency
T r a n s m i t t e r , Radar RT-494/APX-44.
pulse.
c. C o m p o n e n t D i m e n s i o n s .
Receiver-Transmitter, Radar RT-494/APX-44
7-3/4
22-1/2
5
22.8
Control, Transponder Set C-2714/APX-44
4-7/8
5-3/4
2.2
4-1/2
Antenna AT-884/APX-44
7-1/4
3-3/16
3-15/16
.5
Mounting MT-2100/APX-44
23-1/2
5-1/8
1.8
4
is given below. A common name is indi-
cated after each item.
A list of the nomenclature assignments
Transponder set,
Transponder
Set
AN/APX-44-----------------
Receiver-Transmitter,
Radar
RT-494/APX-44------
Receiver-transmitter.
Control, Transponder Set C-2714/APX-44-----------
Control unit.
Antenna
AT-884/APX-44---------------------
Mounting MT-2100/APX-44---------------------
Mounting.
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