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|  MIL-S-70685(AR)
4.5.7 Voltage standing wave ratio. The voltage wave ratio
of the RF circuits shall be measured at 30 to 76 megahertz. The
maximum voltage standing wave ratio shall be 1.4:1.
4.5.8 Crosstalk. Crosstalk drop between channels of the RF
circuits shall be measured at 30 to 76 megahertz. The
attenuation shall be 50db minimum.
4.5.9 Waterproofness. The slip ring assembly shall be
pressurized internally to a pressure of 3 PSI and submerged in
water to a depth of 12 inches from the top of the unit for a
period of 15 minutes. During this period, the slip ring
assembly shall show no signs of leakage. The unit shall then be
pressurized internally to 3 PSI below atmosphere. During this
period, the slip ring assembly shall show no signs of leakage.
5.
PACKAGING
5.1 Packaqinq. Packaging shall be in accordance with
Packaging Data Sheet P8437092 unless otherwise specified in the
contract.
6.
NOTES
6.1 Intended use. The slip ring assemblies manufactured
under this specification are intended for use in Vulcan Air
Defense System (VADS).
6.2 Ordering
data.
Procurement
documents
should
specify
the following:
Title, number and date of this specification.
a.
b.
Title, number and date of part drawing.
Provisions for first article inspection, (see 4.3).
c.
Any deviation from this specification.
d.
Level of packaging (see 5.1).
e.
6.3 Submission of inspection equipment designs for approval.
Submit equipment designs as required to Commander: US Army
Armament, Munitions and Chemical Command, ATTN: AMSMC-QAF-I(D),
Dover, NJ 07801-5001. Request letter of submittal shall state
contractor contract number, specification number, item
nomenclature and classification of defects or test.
6.4 Subject term (keywords) listinq.
Slip Ring Assembly
Vulcan Air Defense System
Preparing activity:
Custodian:
Army-AR
Army-AR
(Project 1OO5-A664)
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