What Should I Do if the Device Amplitude Reading Does Not Match the Source?
- Updated2023-03-14
- 1 minute(s) read
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Verify that the discrepancy between the PXIe-5663E and the source is within the error limits of the devices.
- Verify the absolute amplitude accuracy of the PXIe-5663E using the appropriate value.
- Verify the level accuracy of the input signal into the receiver.
- Check for cable loss, which can be substantial. For example, an RG58 coaxial cable loses about 2.1 dB of signal amplitude per foot at 2 GHz. Unless you are using high-quality cables, expect losses when working with high-frequency signals.
- Perform a self-calibration for the PXIe-5663E.
If errors continue, contact NI technical support or visit ni.com/support.