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Spirent KB Article
Doc ID: FAQ18048
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Vertex: Why is Crest Factor critical for Higher Order Modulation Tests?
Answer
When a higher order modulation scheme is used for LTE testing such as 64QAM or 256QAM, it is very important to set a higher Crest Factor (CF) on Vertex, which can handle a high PAPR, such as 20/25dB.
Set a higher CF under
Configure
>
Advanced Port Settings
as shown below:
Version
3.0
Publish Date
2017-12-12
Categories
Product : Vertex
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