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 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
	Current Sensor	Cables	The current sensor to use with transfer factor attached to the driver
	Injection device	Cables	The injection clamp to use
	Jig	Cables	The jig 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

Equipment Under Test