Response to Intermittent Disturbances (Ave, RMS) Performance Test

The intent of this test is to measure the response of impulsive signals to the CW amplitude.  What makes this test unique to the CISPR amplitude relationship test is the PRF is set very low (0.625 Hz). The modulated signal is defined by CISPR 16-1-1 as an RF Pulse (as compared to the DC pulse for the Quasi-Peak measurements). CISPR 16-1-1:2019 defines the Impulse Area of an RF pulse in Section 7.3.3 (Average Detector) and Section 8.3.4 (RMS-Average Detector).   For this test CISPR defines the Pulse width as 160 ms for Bands A, B, and 100 ms for Bands C, D, and E. For this test, CISPR defines the pulse period as 1.6 seconds, or 0.625 Hz. The source amplitude is not critical as this is a relative measurement between the CW amplitude and the pulsed amplitude.

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Required Test Equipment

Test Equipment

Model Number1

Signal Source

PSG Models
(see equipment list)

Power Meter

N1914A

Power Sensor

E9304A Option H18

Power Splitter

11667A

Cable, BNC

8120-1840 

Cable, 3.5 mm coaxial

11500E

Adapter, 3.5 mm (f) to 3.5 mm (f)

  • For 3.5 mm source

83059B

Adapter, 2.4 mm (f) to 3.5 mm (f)

  • For 2.4 mm source

11901B

Adapter, Type-N (m) to 3.5 mm (f)

  • 2 required for Option C35

1250-1744

Adapter, Type-N (m) to Type-N (m)

1250-1475

Adapter, Type-N (m) to 2.4 mm (f)

  • For Option 544

11903D

  1. Refer to the main Required Equipment table for a list of alternative models.

Connection Setups

Power Meter Calibration

 

Response to Intermittent Disturbances (Ave, RMS) Test Setup