PS Magazine - TB 43-PS-613
PS, The Preventative Maintenance Monthly
ISSUE 613
DECEMBER 2003
PS 613
DEC 03
27
PS 613
DEC 03
26
Patriot Missile System…
Stop Sand from Stopping IFF
S
and in the desert gets inside the Patriot's radar shelter and then in the CP-1187( )/
TPX-46A(V)7 signal processor inside the shelter.
That causes the IFF interrogator to
fail and makes the whole Patriot NMC.
But a little extra filtering stops sand
from shutting down the IFF.
Take one of the filters normally used
with the Patriot's air conditioners and
cut out one piece 5 x 9 inches and
another 5 x 5.5 inches.
Use tape or vel-
cro to put the two pieces over the two
RF air filters.
The extra filtering will
keep sand out of the signal processor.
Check the filters weekly and clean
or replace them if necessary.
Put AC
filter
over
each
RF filter
…so we’re
out of
business!
we’ve
got to
figure out
some
way
to
stop that!
I’ve
got a
way!
what’s
going on
here!?
lookit
that
stack o’
2404s!
the IFF
went down
again…
cold morning
in the desert…
hmm…
time to get
the troops
to police
the area.
I gotta
get my
paper work
done!
5 x 5.5-in filter (top)
5 x 9-in
filter
(rear)
613. 26-27 (C)
10/30/03
5:02 PM
Page 1
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