MIL-DTL-85670D
4.4.4 Retention of qualification. To retain qualification, the contractor shall forward a report at 24-month intervals
to the qualifying activity. The qualifying activity shall establish the initial reporting data, based upon conformance
inspection requirements in 4.6 and in table III. Requirements for qualification retention shall be specified by the
qualifying activity (DLA Land and Maritime, Code VQE, Defense Supply Center Columbus, P. O. Box 3990,
Columbus OH 43218-3990 or online at vqe.chief@dla.mil) (see 6.3), consistent with conformance inspection
a.
A Summary of the results of conformance inspection individual tests, sampling tests and special test (if
applicable), indicating as a minimum the number of antennas that have passed and the number that have
failed. The results of the tests of all reworked antenna shall be identified and accounted for.
b.
Failure to submit the report within 60 days after the end of each 24 month period may result in loss of
qualification for the product. In addition to the periodic submission of inspection data, the contractor shall
immediately notify the qualifying activity at any time during the 24 month period that the inspection data
indicates failure of the qualified product to meet the requirements of this specification.
c.
Design of the antenna has not been modified.
In the event that no production has occurred during the reporting period, the manufacturer shall submit a report
certifying to the qualifying activity that the manufacturer still has the capabilities and facilities necessary to produce
the antennas and wants to remain on the QPL.
4.5 Method of Qualification Examination and testing:
4.5.1 Qualification testing. Qualification testing shall be conducted on three antennas (one of each finish in
accordance with 3.4.7 and table III). All samples shall be representative of normal production antennas to be
supplied under the contract. Before authorization to conduct qualification testing may be granted, the contractor's test
procedures must be reviewed and accepted by the qualifying activity (see 6.3).
4.5.2 Scope of qualification tests. Qualification tests shall include electrical tests in accordance with 4.5.3 and
environmental tests to determine that the antennas meet all the requirements of this specification, and the contract
(see table III).
4.5.3 Electrical testing. The electrical tests shall include radiation pattern, polarization, gain, VSWR, and power
handling.
4.5.3.1 Pattern, polarization, and gain tests. The pattern, polarization, and gain test shall be conducted on a 32-
foot octagonal ground plane. The ground plane shall be capable of shielding the operator and all equipment from the
antenna assembly. The complete ground plane shall be so placed that maximum clearance shall be maintained
between the radiating elements of the antenna and all foreign objects. The minimum acceptable clearance shall be
that of a hemisphere having a radius of 16 feet. The test installation shall be so located that the antenna under test
will not be affected by intermittent traffic of personnel.
4.5.3.2 VSWR test. The VSWR, measured at the RF connector and referenced to an impedance of 50 ohms, shall
be swept across the frequency bandwidth of 30 to 88 MHz, 108-174 MHz, and 225-400 MHz. The data can be taken
by any of the current measurement techniques and presented in the form of an X-Y plot (graph) or oscilloscope
picture calibrated in return loss (dB) or VSWR.
4.5.3.3 Power handling test. The antenna shall be tested for power handling capability in accordance with 3.6.7.
4.5.4 Environmental tests. Unless otherwise specified herein, antenna performance test during environmental test,
may be limited to a VSWR test in accordance with 4.5.3.2, except that power handling and duty cycle shall also be
required during temperature-altitude testing.
12
For Parts Inquires call Parts Hangar, Inc (727) 493-0744
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business