MIL-DTL-28791 Isolators And Circulators, Radio Frequency, General Specification ForThis specification covers the general requirements for isolators and circulators, coaxial, waveguide, and stripline radio frequency for use in armed service radar and radio application.

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MIL-DTL-28791C

4.7.6 Shock (specified pulse) (see 3.9). Isolators and circulators shall be subjected to method 213 of MIL-STD-

202. The following details shall apply:

a. Mounting: Isolators and circulators shall be clamped to the test fixture.

b. Test condition: I.

c. Measurements after test: Insertion loss and VSWR shall be measured as specified in 4.7.4 and 4.7.5.

NOTE: The input and output circuitry shall be such that the errors in the measurement quantities are small. The

values given in the specification sheet include worst case test circuitry errors.

FIGURE 1. Test set-up for isolation, insertion loss and VSWR (isolators).

NOTE: The input and output circuitry shall be such that the errors in the measurement quantities are small.

FIGURE 2. Test set-up for isolation, insertion loss, and VSWR (circulators).