MIL-STD-469 Radar Engineering Interface Requirements, Electromagnetic Compatibility See Notice 1 For Replacement InformationThis standard establishes the engineering interface requirements to control the electromagnetic emission and susceptibility characteristics of all new military radar equipment and systems operating between 100 megahertz MHz, and 100 gigahertz GHz, to ensure EMC in all intended operational environments, and to conserve the frequency spectrum available to military radar systems.

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MIL-STD-469B

4.1.1 Joint acquisitions. Equipment or subsystems acquired by one DoD activity for multi-agency use shall comply with the requirements of the user agencies.

4.1.2 North Atlantic Treaty Organization (NATO) acquisitions. Equipment or subsystems acquired by a DoD activity in support of N ATO shall comply with the applicable requirements of this standard and any applicable NATO standardization agreement (STAN AG). The NATO STANAGs shall not be waived, deviated from, or tailored unless specific authority has been granted by the contracting activity.

4.1.3 Self-compatibility. The operational performance of a piece of equipment or subsystem shall not be degraded nor shall it malfunction when al l of the units or devices in the equipment or subsystem are operating together at their designed levels of efficiency or normal design capability.

4.1.4 Radar spectrum management (RSM). The primary goal of this standard is to promote th e effective conservation of the limited electromagnetic spectrum through the implementation of EM C interface requirements for mi litary radar systems. For this goal to be realized, careful attention to EMC is required in all phases of the design, development, and final production of a radar system.

4.1.5 Radar spectrum management (RSM) test plan. Unless otherwise specified by the contracting activity , (except for primary radars in Group A (see Table I in 5.1)), an RSM test plan shall be prepared (see 6.3).

The following data shall be reported in the RSM test plan: Transmitter emission bandwidth

Transmitter emission levels

Transmitter frequency tolerance

Transmitter tunability

Antenna pattern and gain characteristics

Receiver acceptance bandwidth Receiver susceptibility characteristics Receiver tunability

Receiver frequency tolerance

Receiver oscillator radiation

4.1.6 Test procedures. Measurements shall be performed using the test procedures specified i n Appendix A of this standard or by fully descr ibed and justified alternate procedures presented in the RSM test plan. The test procedures presented in Appendix A should be used as guidance to determine compliance with the applicable emission and susceptibility requirements of section 5 (see 6.3). Data gathered as a result of performing tests in one electromagnetic discipline may satisfy requirements in another. To avoid unnecessary duplication, a single test program should be established with similar tests conducte d concurrently whenever possible. Equipment intende d to be operated as a subsystem shall be tested as such to the applicable emission and susceptibility requirements and limits whenever practical.

4.2 Tailoring of this standard. The Contracting Authority shall be advised when engineering analyses on equipment or subsystems being acquired for use in specified systems or installations reveal that th e requirements in this standard are not suitable or stringent enoug h for the acquisition. A detailed description of the inadequate EMC equipment or subsyste m specification(s) and recommended changes or corrections