TM 11-5841-291-12
b. Overall System Test (AI). Perform
hold gun between 20 and 30
the procedures listed below.
feet away from antenna and aim
directly at it. The illustration
(1) Consult aircraft technical
shows you how to position the
manual to find out where the AI
gun within the distance at any
antennas are located.
azimuth angle around the
antenna.
(2) Ask technician in cockpit to
make sure that system's circuit
breaker is turned on (closed)
and that POWER switch on con-
trol unit is set to ON.
NOTE
Check and adjust position of
cockpit dimmer control for visible
edge lighting and alert indicator.
Choose one AI antenna to start
(3)
with and set gun's function
switch to HI BND.
(4)
Make sure that nothing is be-
tween you and antenna. Then,
hold gun between 10 and 15
feet away from antenna and aim
directly at it. The illustration
shows you how to position the
gun within the distance at any
azimuth angle around the
antenna.
(5) Squeeze gun's trigger switch
(5)
Squeeze gun's trigger switch
and observe that meter indi-
and observe that meter indi-
cates between -2 and +2 dB.
cates between -2 and +2 dB.
At this time, ask the techni-
At this time, ask the technician
cian in cockpit to verify that
in cockpit to verify that AI
SAM indicator light is on and
indicator light is on and that
that warning tone can be heard
warning tone can be heard in
in headset.
headset.
(6) Release trigger switch and
Release trigger switch and
(6)
check with the other technician
check with the other technician
that indicator light goes out
that indicator light goes out
and that warning tone stops.
and that warning tone stops.
(7) Repeat steps (4), (5), and (6)
Repeat steps (4), (5), and (6)
(7)
above for the other SAM
above for the other AI antenna.
antenna. Make sure that gun's
Make sure that gun's function
function switch is set to LO
switch is set to HI BND when
BND when you go on to the
you go on to the other AI
other SAM antenna.
antenna.
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