Hello, everybody
I think this is a simple question for RF expert. What is the EVM, and how to measure the EVM ? and the relationship between spectrum mask???
Hello, everybody
I think this is a simple question for RF expert. What is the EVM, and how to measure the EVM ? and the relationship between spectrum mask???
dear
you can visit the @ilent website for more info about EVM test. I saw the EVM test for GSM/EDGE PA output signals. all done by @gilent E4406 VSA instrument.
There really isn't a relationship betweem EVM and spectral mask. For example, you could have a sign error in you baseband I/Q setup, so that your bits are inverted. You'd see the same spectral mask, but your evm would be bad.