IQ capture and streaming is available in the spectrum analyzer and real-time spectrum analyzer (RTSA) modes only, for Field Master Pro and Remote Spectrum Monitors. The feature attains the magnitude/phase or real/imaginary raw data components of a waveform and either saves the data to a file on internal or external USB storage media, or streams the data out of the Data, USB, or Ethernet ports. The following sections describe details of the IQ data format and structure. Refer to IQ Capture/Streaming Measurement to get started with an IQ capture or an IQ stream.