Agilent Technologies 35670A Spezifikationen PDF herunterladen (Seite 59)

AGILENT 35670A

Supplemental Operator’s Guide

• Toggle the [AUTOSCALE ON OFF] softkey (F1) until ON is highlighted.

• Press the [Active Trace] hardkey.

• Press the [A] softkey (F2).

• Press the [Trace Coord] hardkey.

• Press the [MORE CHOICES] softkey (F6).

• Press the [REAL PART] softkey (F2).

• Press the [Active Trace] hardkey.

• Press the [B] softkey (F2).

• Press the [IMAGINARY PART] softkey (F3).

Assessing Measurement Quality

Measurement quality is described by coherence, which varies from 0 to 1. To set up

a coherence display, follow these steps:

• Press the [Meas Data] hardkey.

• Press the [COHERENCE 2 / 1] softkey (F7).

A coherence value of 1 means the response measured by Channel 2 was due to the

excitation of Channel 1. A coherence of 0 means that none of the response of

Channel 2 was due to the input measured by Channel 1.

Burst random excitation usually exhibits excellent coherence unless non-linearities

are excited.

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Agilent Technologies 35670A Spezifikationen Seite 59