MIL-DTL-28791C
4.7.7 Thermal Shock (see 3.10). Isolators and circulators shall be tested in accordance with method 107, MIL-
STD-202. The following details and exceptions shall apply:
a. Test condition: A, except that the low temperature shall be -65°C and the high temperature shall be
+105°C.
b. Measurements after test: Insertion loss and VSWR shall be measured as specified in 4.7.4 and 4.7.5.
4.7.8 Moisture resistance (see 3.11). Isolators and circulators shall be tested in accordance with method 106 of
MIL-STD-202. The following details shall apply:
a. Loading voltage: Not applicable.
b. Measurements after test: Insertion loss and VSWR shall be measured as specified in 4.7.4 and 4.7.5.
4.7.9 Vibration, high frequency (see 3.12). Isolators and circulators shall be tested in accordance with method 204
of MIL-STD-202. The following details shall apply:
a. Mounting: Isolators or circulators shall be attached to the vibration table by clamps. A clamp shall be
placed around the center of each isolator or circulator and no part of the isolator or circulator shall touch
any object other than the clamp.
b. Test condition: B.
c. Measurements after test: Insertion loss and VSWR shall be measured as specified in 4.7.4 and 4.7.5.
5. PACKAGING
5.1 Packaging. For acquisition purposes, the packaging requirements shall be as specified in the contract or order
(see 6.2). When 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 command. 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. Isolators and circulators are intended for use in military equipment in the frequency range
specified.
6.2 Ordering data. Acquisition documents should specify the following:
a. Title, number, and date of the specification and the specification sheet.
b. If required, the specific issue of individual documents referenced (see 2.1).
c. Packaging requirements (see 5.1).
d. Special marking, if required (see 3.13).
e. Complete PIN.
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