China Electronics Technology Instruments AV3672 Series, User Manual

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Appendix
Appendix 6 Mixer Measurement
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saved in the “*.csv” file. The file can be read with the Microsoft Excel program, and the data of last sweep will be
saved in the “*.csv” file.
Menu path: [Save] > [Save Data As]. Click “File type=IMD sweep data (*.csv)”.
Attention
Precautions for data saving

Save the power values of current parameters, including the power of the input end and output end. For the
average, maximum and minimum type, all high-order and low-order data will be saved:
UTAvg|OUTLo|OUTHi|INAvg|INLo|INHi.

All the displayed intermodulation products will be saved.

Only the power values of intermodulation products are saved, and the calculated values will not be saved.

If the calibration function is enabled before saving, all the data will be calibrated. At the same time, original
data will be saved.
7.4 Intermodulation Spectrum Measurement of Amplifier Frequency Sweep
This section mainly introduces the intermodulation spectrum measurement, which can be done with frequency
sweep intermodulation spectrum measurement at the same time. As the two measurements are greatly different
from each other, intermodulation spectrum measurement is usually done separately. This section introduces the
intermodulation spectrum measurement in the following parts.
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Concept of intermodulation spectrum ············································································ 463
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Creating of intermodulation spectrum channel ·································································· 464
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Parameters of intermodulation spectrum trace ··································································· 464
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[Intermodulation spectrum setting] dialog box ·································································· 465
7.4.1 Concept of Intermodulation Spectrum
The intermodulation spectrum channel of the vector network analyzer is configured with one traditional spectrum
analyzer interface to measure the intermodulation distortion of the DUT. The intermodulation spectrum channel
interface is different from the frequency sweep intermodulation distortion channel. As f1 and f2 of the main signal
are fixed in intermodulation spectrum measurement, the receiver can receive the output signal of the DUT in the
frequency sweep mode, and the display interface is shown in Fig. 7.10.