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IQ Analyzer (IQA) – Option 351
About I/Q Analyzer (IQA) Measurements
About I/Q Analyzer (IQA) Measurements
The I/Q Analyzer Mode makes general purpose frequency domain and time
domain measurements. The mode enables two types of I/Q measurements:
— frequency domain and
— time domain measurements
Noise level in time-domain measurements are higher for IF-BW >100 MHz
due to raised noise levels at the edges of the 120 MHz bandwidth.
In order to ensure consistent results between frequency domain and time
domain, spectrum measurement and waveform measurement are based on the
same I/Q acquisition. The following acquisition parameters are automatically
calculated to satisfy these requirements:
1. RBW and IF BW specified in Spectrum measurement BW (BW 2) menu.
2. Start time and Stop time specified in Waveform measurement Sweep
3. I/Q signal capture related parameters specified in the Measurement Setup
Some measurement parameters are auto-coupled and are not user-settable.
Keysight N9938-90006 User's Guide
(Sweep 3) menu and IF BW specified in Waveform measurement BW
(BW 2) menu.
(Meas Setup 4) menu.
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