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 APPENDIX A

Date: Time: Transmitter tuned frequency:

Peak power output: dBm Pulsewidth: sec Pulse repetition frequency: pps Modulation: Compression ratio: Spectrum analyzer resolution bandwidth: kHz

OPEN FIELD TESTS: Test antenna: Gain: dB Polarization:

Height above ground: feet Alinement (relative to radar antenna): Bearing: degrees

Elevation: degrees Polarization: Coupling (radar-to-test antenna terminals): dB

Frequency

(MHz)

(±MHz)1

Signal generator level (dBm)

Measured cable loss (dB)

Attenuation inserted (dB)

Coupling

(dB)2

Power spectral level (dBm/kHz)

1Referenced to transmitter tuned frequency.

2Closed system coupling, sampler attenuated output to radar antenna input. Open field coupling, radar antenna input to test antenna terminals.

FIGURE 12. Sample transmitter emission spectrum data form.