<s>
Each	O
TK-1	O
battery	O
has	O
one	O
Change	O
Bai	O
1	O
(	O
Long	O
White	O
1	O
)	O
S-Band	O
phased-array	O
radar	O
for	O
search	O
and	O
target	O
tracking	O
and	O
two	O
CS/MPG	B-Algorithm
-25	I-Algorithm
target	O
illuminator	O
radars	O
that	O
operates	O
in	O
the	O
X-Band	O
(	O
18	O
–	O
32GHz	O
)	O
range	O
for	O
the	O
terminal	O
phase	O
,	O
servicing	O
three	O
or	O
four	O
4-round	O
missile	O
launchers	O
.	O
</s>
<s>
The	O
CS/MPG	B-Algorithm
-25	I-Algorithm
X-band	O
target	O
illuminator	O
radar	O
entered	O
service	O
in	O
the	O
late	O
1980s	O
.	O
</s>
<s>
The	O
CS/MPG	B-Algorithm
-25	I-Algorithm
is	O
a	O
continuous	O
wave	O
disk	O
antenna	O
illuminator	O
radar	O
that	O
was	O
indigenously	O
developed	O
by	O
CSIST	O
,	O
and	O
was	O
derived	O
from	O
the	O
I-HAWK	O
AN/MPQ	O
-46	O
High-Power	O
Illuminator	O
(	O
HPI	O
)	O
radar	O
but	O
is	O
estimated	O
to	O
be	O
60	O
percent	O
more	O
powerful	O
in	O
output	O
with	O
improved	O
EW	O
,	O
ECM	O
,	O
and	O
IFF	B-Device
capabilities	O
.	O
</s>
<s>
It	O
is	O
tied	O
into	O
the	O
main	O
phased-array	O
radar	O
on	O
a	O
time-share	O
basis	O
similar	O
to	O
that	O
employ	O
by	O
the	O
US	O
Navy	O
's	O
AEGIS	B-Application
air	O
defence	O
system	O
,	O
allowing	O
the	O
TK-1	O
surface-to-air	O
missile	O
system	O
multiple	O
target	O
engagement	O
capability	O
.	O
</s>
