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Basic Measurements
Making Measurements
Setting Up Waveform File Vector Modulation
In this section, we will load a GSM and a LTE waveform into the VXG to
demonstrate the accuracy of the VXG's vector modulation using error vector
magnitude (EVM) measurement applications available on the X-Series Signal
Analyzer.
The VXG supports all ARB waveforms that are provided on the X-Series
sources. This section will use a few of the ARB files that come with the X-Series
sources
Ensure the equipment and triggers are properly configured. Refer to
"Equipment Setup" on page 9
Signal Analyzer" on page 11
Using the graphical user interface
On the VXG:
1. Select Preset > Preset to set the instrument to a known state.
2. Set Frequency to 20 GHz and Amplitude to 0 dBm.
3. Select the Group 1: Signals block to open.
4. Select the arrow for Signal 1 to open the Signal Setup window.
This screen is only accessible if Option M9484C-8SG (8 virtual signal
generators) is installed. For all other option configurations, continue to the
next step.
M9484C Measurement Guide
.
"Setting Up Triggers on the X-Series
and
.
39
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