RadiMation Application Note 162

How to perform a MIL-STD-461 RE103, radiated emissions, antenna spurious and harmonic outputs test.

This application note explains how the MIL-STD-461 RE103, radiated emissions, antenna spurious and harmonic outputs test can be performed with RadiMation^®.

The "RE103, radiated emissions, antenna spurious and harmonic outputs" test applies as an alternative to CE106 for testing transmitters with their intended antennas, ensuring emissions do not exceed RE102 limits in transmit mode. It is preferred for systems with active antennas or non-standard impedance curves. It applies from 10 kHz to 40 GHz, excluding the signal bandwidth and ±5% of the fundamental frequency, with larger exclusions for high-power Navy shipboard systems.

The exact requirements and test methods for the RE103 are specified in the MIL-STD-461.

Necessary equipment

The following devices should be configured:

• Measurement receiver
• Band rejection network
• Attenuators / filters
• Antenna

EUT Testing

EUT Testing equipment

The configuration of the eut testing test site should contain the following devices:

#	Device name	Tab in test site configuration window	note
	Antenna	Devices 1	The receiving antenna to use
	Spectrum analyser	Devices 2	The measurement receiver or spectrum analyser to use
Cables
①	Cable preamp-> analyser	Cables	Cable with a correction file specified for the band rejection filter or high pass filter
②	Cable preamp-> analyser	Cables	Cable with the specified loss of the used attenuator
③	Cable preamp-> analyser	Cables	Cable with a correction file specified for cable loss

Configure the EUT test

To perform the eut test, create a radiated emissions multiband test. The radiated emission multiband test, can be started by selecting from the menu:

    Tests

       Radiated Emission

          Multiband

Equipment Under Test