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MIL-F-48673 (AR)
4. 8.1.4.3 Test setup.
.
a.  FCC-FTS and test station.  The test setup of the FCC-FTS
shall be such as to simulate equipment transported as secured
The test set cover shall be closed and secure.  The  FCC-FTS
cargo
q
undergoing  test  anti  the  vibration  fixture  shall  be  securely  attached
to  the  vibration  exciter  (head  or  slip  table  as  required)  using  the
normal mounting attachment points.  The test equipment shall be
positioned as far away from the vibration exciter as possible to
limit the effect of stray magnetic fields.  The limiting factors,
however, are the length of the interconnecting cables.  The FCC-FTS
will not be operated during vibration.
1
Interconnecting cables.  All interconnecting cables from the
be
FCC-FTS to the test station shall be suspended by elastic cord
(bungee), positioned at a point approximately six inches from the
FCC-FTS termination.  All cables, including accelerometer, shall be
oriented so that they emanate in a straight line away from the
center of the vibration exciter.
c.  Accelerometers (e quipment).  The FCC-FTS under test shall be
equipped with accelerometers located on the unit's surface in each
of the three perpendicular axes for determining resonance
frequencies and acceleration "g".
Vibration test equipment
XII.
TAB LE
Calibration
Period
Ty pe/Model
Range/Accuracy
Description
As Req'd
Unholtz-Dickie
5 to 3 KHz, 25 lbs
Random Sine Vibration
TA-16400-150
to 150g, 70 in/secf
and Data Acquisition
1 in. da.
System
As Req'd
Minerva
0-60 secs/mins/+0.1%
Stop Watch
Tektronics 453
As Req'd
0-5 MHz 53%
Oscilloscope
As Req'd
Ca
DC -24MHz 23%
Vertical Amp Plug in
Facility
N/A
115 vat, 60 Hz
Electrical Power
10, 30A
N/A
Facility
115 VAC, 400 HZ
Electrical Power
10,  30A  .
48
I

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