Making Measurements Using Frequency Dependent Offset Tables; Selecting A Frequency Dependent Offset Table - Agilent Technologies E4418B User Manual

Making Measurements using Frequency Dependent Offset Tables

Making Measurements using Frequency Dependent
Offset Tables
This section describes how to use frequency dependent offset tables.
Frequency dependent offset tables provide you with a quick and convenient method
of compensating for your external test setup over a range of frequencies. Note that
when selected, frequency dependent offset correction is IN ADDITION to any
correction applied for sensor frequency response.
The power meter is capable of storing 10 frequency dependent offset tables of 80
frequency points each.
To use frequency dependent offset tables you:
1. Select the table to work on a channel. Refer to "Selecting a Frequency
Dependent Offset Table", on page 2-27 for further information. If you
require to edit the table refer to "Editing Frequency Dependent Offset
Tables", on page 2-29 for further information.
2. Zero and calibrate the power meter. The reference calibration factor used
during the calibration is automatically set by the power meter from the
sensor calibration table (if selected).
3. Specify the frequency of the signal you want to measure. The calibration
factor/offset is automatically set by the power meter from the sensor
calibration table (if selected) and the frequency dependent offset table. Refer
to "Making the Measurement", on page 2-28 for further information.
4. Make the measurement.

Selecting a Frequency Dependent Offset Table

You can select a frequency dependent offset table for use by pressing
,
Tables Freq Dep Offset
indicates if any frequency dependent offset tables are currently selected. The "Offset
Tbls" screen is displayed as shown in Figure 2-6.
Agilent E4418B User's Guide
, . The "State" field
Table Off On
Power Meter Operation
System
,
Inputs
2-27