Chris, I would say that your EVM is mainly affected by your SNR and your digital receiver implementation (AGC / filters / clock recovery / equalizer / ...). So without more details it’s going to be hard to say if what you are seeing is within limits.
Cheers, Julian Arnold, M.Sc > Am 26.03.2021 um 18:29 schrieb [email protected]: > > > I'm capturing a 3 GHz QPSK signal with 5 MHz symbol rate by sampling the > signal at 6 times the symbol rate. The B210 is externally referenced to a > very clean 10 MHz reference. My measurements of the EVM sampling the signal > for ~0.5 seconds are pretty poor ~30-40%. I can provide more setup details > but I'm wondering if others can comment on what EVM I can expect. I'm hoping > this isn't a fundamental limitation of this hardware system. > > > > Thanks, > > Chris > > _______________________________________________ > USRP-users mailing list -- [email protected] > To unsubscribe send an email to [email protected]
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