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|  MIL-S-70442 (AR)
3.4.5.3 Induced environment.
3.4.5 .3.1 Vibration. The HUDS shall not sustain damage or
subsequently fail to provide specified performance when subjected to
the vibration environment defined by Method 514.2, Procedure I, Part
I, Table 514.2-111 of MIL-STD-81O; except that the frequency shall
be limited to 500 Hz (reference Figure 18).
3.4.5.3.2 Shock. The HUDS shall meet the shock requirements of
MIL-STD-81O, Method 516.2, Procedure I, Figure 516.2-2 and Method
516.2, Procedure III.
3.4.5.3.2.1 Bench handling. The HUDS shall withstand shock
environments encountered in maintenance and servicing.
3.4.5.3.3 Acceleration. The HUDS shall operate without
degradation when exposed to acceleration levels up to 2g.
3.4.6 Transportability. The HUDS shall withstand vibration
environments encountered during transporting as specified in
MIL-STD-81c, Method 514.2, Procedure X.
All soldering shall be done in accordance
3.4.7 Solderinq.
with MIL-S-45743 or MIL-S-46844.
3.4.8 Electromagnetic radiation (first article testinq only).
3.4.8.1 Electromagnetic compatibility. Each HUDS component as
installed in the helicopter, shall not cause undesirable response,
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malfunction, or degraded performance to any other equipment/
subsystem installed in or associated with the helicopter; nor shall
any component malfunction, exhibit degraded performance or
undesirable response beyond the tolerances specified in MIL-E-6051
when other equipment on board the helicopter are singly or
collectively operated and performing their intended functions.
3.4.8.2 Electromagnetic interference. The HUDS shall meet the
requirements of MIL-STD-461 equipment when tested to the following
requirements: CEO1, CE03, CE05, CS01, CS02, CS06, RE02, RSO1, RS03,
RS03.1, and RS02.
3.4.8.3 Circuit isolation. Signal and power potentials shall
be electrically isolated from each other and the equipment chassis.
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