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How do I optimize my RSA to measure EVM (Error Vector Measurement)?

Frage:

How do I optimize my RSA to measure EVM (Error Vector Measurement)?

Antwort:

For Baseband:

  1. Connect the I&Q signals, then adjust span to completely contain the spectrum.
  2. Set Reference Level for largest signal that does not overload.
  3. Turn signal off, and do RSA Calibrate All. Wait until finished.
  4. Turn signal back on.  Any change of span or ref level will require that you calibrate again.

For RF:

  1. Set the RSA ref level to +30dBm.

Run Calibrate All. Usually you do not need to disconnect the signal


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