RFSG Warning: Overflow Detected in the Arb’s Digital Gain Circuit

Updated Sep 22, 2020

Reported In

Driver

  • NI-RFSA
  • NI-RFSG

Issue Details

In my RFSG Soft Front Panel, I am seeing the following warning: 

Overflow detected in the Arb’s digital Gain circuit. Output waveform was clipped. Reduce the Arb pre filter gain to eliminate overflow.

What can I do to eliminate this warning?

Solution

This warning comes up because the Pre-filter Gain (dB) Property was too large and causes overflow in the AWG interpolation filters. Reduce this value to avoid this overflow and the warning from appearing. 

Note: This value will not affect the output power because other gains on the NI-RFSG device are automatically adjusted to compensate for the Pre-filter Gain.