Glossary (Emi) - Keysight A Series User Manual

Electromagnetic Interference (EMI) Measurements – Option 361

Glossary (EMI)

6. Setting the EMI resolution bandwidth state for the displayed trace:
7. Setting the Dwell Time:
Glossary (EMI)
This section provides a description of some of the terms used in the FieldFox's
EMI mode.
Table 12-1 EMI Abbreviations and Descriptions
Abbreviation Description
APD Statistics Amplitude Probability Distribution Statistics – Evaluates pulses statistically. Measurement done in zero
span, at the specified center frequency, with a specific APD dB resolution bandwidth.
– CCDF Complementary Cumulative Density Function – The probability of the signal power being above a certain
level generated from the APD statistics' histogram results.
– Histogram Results of the APD statistics measurement and the power levels detected over the APD specified dwell
time used to generate a CCDF results.
CISPR International Special Committee on Radio Interference
348
For this example, press
displayed, but other fixed resolution bandwidths can be set (i.e., 200 Hz, 9
kHz, and 1 MHz).
Learn more, see "Resolution Bandwidth (Res BW)" on page
For this example, press Sweep 3 >
EMI Res BW Manual
>
Dwell Time
Keysight N9927-90020 User's Guide
(default = Auto). 120 kHz is
338.
>100 ms (default)