General Power Meter Functions 2
Keysight N1911A/1912A User’s Guide 71
5 Press to highlight the Offset value field and press to display the
Display Offset pop-up. Use the numeric keypad to enter the required value in
the Offset pop-up window.
6 Confirm your choice by pressing . Press key to complete the
offset entry.
Setting frequency dependent offsets
Frequency dependent offset tables provide a quick and convenient method of
compensating for frequency related changes in the response of your test system.
Note that when selected, frequency dependent offset corrections are applied
IN ADDITION to any correction for sensor frequency response.
The power meter is capable of storing 10 frequency dependent offset tables with a
maximum of 80 frequency points each.
To use frequency dependent offset tables:
1 Select the table to be applied to a channel. Refer to “Setting frequency
dependent offsets” on page 71 for further information. If you require to edit the
table refer to “Editing frequency dependent offset tables” on page 74 for
further information.
2 If using an 8480 Series, N8480 Series or an E-Series sensor, 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 “Procedure” on page 72 for further information.
4 Make the measurement.
The Ofs indicator is displayed if Display Offset is selected.
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