<s>
The	O
AN/APQ	B-Device
-13	I-Device
radar	O
was	O
an	O
American	O
ground	O
scanning	O
radar	O
developed	O
by	O
Bell	O
Laboratories	O
,	O
Western	O
Electric	O
,	O
and	O
MIT	O
as	O
an	O
improved	O
model	O
of	O
the	O
airborne	O
H2X	O
radar	O
,	O
itself	O
developed	O
from	O
the	O
first	O
ground	O
scanning	O
radar	O
,	O
the	O
British	O
H2S	O
radar	O
.	O
</s>
<s>
The	O
AN/APQ	B-Device
-13	I-Device
radar	O
was	O
the	O
first	O
military	O
radar	O
converted	O
to	O
civilian	O
use	O
as	O
a	O
weather	O
warning	O
radar	O
.	O
</s>
<s>
The	O
last	O
operational	O
APQ-13	B-Device
was	O
removed	O
from	O
the	O
Fort	O
Sill	O
,	O
Oklahoma	O
post	O
weather	O
station	O
in	O
October	O
1977	O
for	O
display	O
at	O
what	O
is	O
now	O
the	O
National	O
Museum	O
of	O
the	O
United	O
States	O
Air	O
Force	O
.	O
</s>
<s>
The	O
AN/APQ	B-Device
-13	I-Device
weather	O
radars	O
were	O
generally	O
replaced	O
by	O
the	O
AN/CPS	O
-9	O
,	O
which	O
was	O
specifically	O
designed	O
as	O
a	O
weather	O
radar	O
.	O
</s>
