<s>
The	O
AN/FPQ	B-Algorithm
-6	I-Algorithm
is	O
a	O
fixed	O
,	O
land-based	O
C-band	O
radar	O
system	O
used	O
for	O
long-range	O
,	O
small-target	O
tracking	O
.	O
</s>
<s>
The	O
AN/FPQ	B-Algorithm
-6	I-Algorithm
Instrumentation	O
Radar	O
located	O
at	O
the	O
NASA	O
Kennedy	O
Space	O
Center	O
was	O
the	O
principal	O
C-Band	O
tracking	O
radar	O
system	O
for	O
Apollo	O
program	O
.	O
</s>
<s>
RCA	O
's	O
Missile	O
and	O
Surface	O
Radar	O
Division	O
developed	O
the	O
FPQ-6	B-Algorithm
skin	O
tracking	O
C-Band	O
radar	O
as	O
a	O
successor	O
to	O
the	O
AN/FPS	O
-16	O
radar	O
set	O
.	O
</s>
<s>
The	O
AN/FPQ	B-Algorithm
-6	I-Algorithm
can	O
provide	O
continuous	O
spherical	O
coordinate	O
information	O
at	O
ranges	O
of	O
32,000	O
nautical	O
miles	O
(	O
59,000	O
km	O
)	O
with	O
an	O
accuracy	O
of	O
plus	O
and	O
minus	O
6ft	O
(	O
1.8	O
m	O
)	O
.	O
</s>
<s>
The	O
AN/FPQ	B-Algorithm
-6	I-Algorithm
radar	O
employed	O
a	O
2.8	O
megawatt	O
peak	O
power	O
(	O
4.8	O
kilowatt	O
average	O
)	O
,	O
broad	O
banded	O
(	O
5400	O
–	O
5900MHz	O
)	O
transmitter	O
with	O
a	O
frequency	O
stability	O
of	O
1×108	O
.	O
</s>
<s>
The	O
AN/FPQ	B-Algorithm
-6	I-Algorithm
had	O
a	O
self-contained	O
digital	O
computer	O
,	O
an	O
RCA	O
FC-4101	O
,	O
whose	O
primary	O
purpose	O
was	O
to	O
correct	O
dynamic	O
lag	O
in	O
the	O
angular	O
output	O
data	O
.	O
</s>
<s>
As	O
designed	O
,	O
both	O
the	O
AN/FPQ	B-Algorithm
-6	I-Algorithm
and	O
AN/TPQ	O
-18	O
radars	O
were	O
provided	O
with	O
a	O
built-in	O
data	O
processor	O
referred	O
to	O
as	O
the	O
RCA	O
4101	O
Computer	O
.	O
</s>
<s>
The	O
AN/FPQ	B-Algorithm
-6	I-Algorithm
Missile	O
Range	O
Instrumentation	O
Set	O
is	O
a	O
fixed	O
station	O
long-range	O
precision	O
tracking	O
set	O
to	O
be	O
used	O
for	O
tracking	O
intercontinental	O
ballistic	O
missiles	O
for	O
range	O
safety	O
and	O
range	O
user	O
's	O
trajectory	O
measurement	O
data	O
.	O
</s>
<s>
The	O
specifications	O
for	O
the	O
FPQ-6	B-Algorithm
radar	O
installation	O
at	O
Patrick	O
Air	O
Force	O
Base	O
,	O
Florida	O
,	O
are	O
shown	O
in	O
the	O
following	O
table	O
.	O
</s>
<s>
At	O
least	O
two	O
of	O
the	O
AN/FPQ	B-Algorithm
-6	I-Algorithm
systems	O
were	O
given	O
the	O
"	O
CSP	O
"	O
(	O
Coherent	O
Signal	O
Processor	O
)	O
modification	O
.	O
</s>
<s>
This	O
radar	O
had	O
an	O
unambiguous	O
maximum	O
range	O
of	O
215	O
or	O
,	O
and	O
employed	O
uncooled	O
parametric	O
amplifiers	O
with	O
a	O
system	O
noise	O
temperature	O
of	O
440	O
K	B-Operating_System
,	O
[	O
a	O
noise	O
figure	O
of	O
4dB ]	O
.	O
</s>
