MIL-DTL-5815H
4.7.11.2 Barometric pressure (reduced) (see 3.17). MIL-STD-202, Method 105, test condition C. The antenna
shall be mounted on a metal plate by its normal mounting means. Prior to reduction of pressure, the VSWR with the
antenna mounted in the chamber shall be measured and recorded. After a minimum of 10 minutes at reduced
pressure, the VSWR shall again be measured and recorded. The antenna shall be considered as passing the test if
the VSWR does not change more than ± 20 percent from the initial reading. The VSWR requirement specified in 3.7
herein does not apply when the antenna is in the chamber.
4.7.11.4 Vibration (see 3.19). MIL-STD-202, Method 204, test condition B. The antenna shall be mounted on the
vibration table by its normal mounting means. Prior to vibration, the VSWR with the antenna mounted on the table
shall be measured and recorded. During vibration, the VSWR shall be monitored to evaluate the effects of the test.
The antenna shall be considered as passing the test if VSWR does not change more than ± 20 percent from the initial
reading. The VSWR requirement specified in 3.7 herein does not apply when the antenna is on the vibration table.
4.7.11.6 Moisture resistance (see 3.21). MIL-STD-202 , Method 106. The antenna shall be mounted on a metal
plate by its normal mounting means. Prior to testing, the VSWR with the antenna mounted in the chamber shall be
measured and recorded. After the test, and while still at high humidity, the VSWR shall again be measured and
recorded. The antenna shall be considered as passing this portion of the test if the VSWR does not change more
than ± 20 percent from the initial reading. The VSWR requirement specified in 3.7 herein does not apply when the
antenna is in the chamber. Following the measurement at high humidity, the impedance measurements specified in
4.7.11 above shall be performed in accordance with 3.6.2 and 3.6.3 of method 106.
5. PACKAGING
5.1 Packaging. For acquisition purposes, the packaging requirements shall be as specified in the contract or order
(see 6.2). When actual packaging of materiel is to be performed by DoD or in-house contractor personnel, these
personnel need to contact the responsible packaging activity to ascertain packaging requirements. Packaging
requirements are maintained by the Inventory Control Point's packaging activities within the Military Service or
Defense Agency, or within the military service's system commands. Packaging data retrieval is available from the
managing Military Department's or Defense Agency's automated packaging files, CD-ROM products, or by contacting
the responsible packaging activity.
6. NOTES
(This section contains information of a general or explanatory nature that may be helpful, but is not mandatory.)
6.1 Intended use. The antenna is a radiation element having an essentially omnidirectional vertically polarized
radiation pattern intended for use with airborne communication.
6.2 Acquisition requirements. Acquisition documents must specify the following:
a. Title, number and date of this specification and of the applicable specification sheet and the complete
b. Packaging requirements (see 5.1).
c. Special marking, if required.
d. First article sampling, test, and evaluation requirements.
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