Hello @AKS.
1. The real time FFT is performed onboard the WebDAQ device. The user has the option to save the saved time-domain to a remote system and use a third party analysis application. https://www.mccdaq.com/PDFs/Manuals/WebDAQ/help/en/datalogger.htm?WEBDAQ504
2. The WebDAQ 504 uses a combination of analog and digital filtering. Each analog input channel has a 24-bit Delta-Sigma A/D converter, which have inherent filtering capabilities. Please reference pages 13-14 in the WebDAQ 504 User's Guide. https://www.mccdaq.com/pdfs/manuals/WebDAQ-504.pdf
3. QuickDAQ does not support WebDAQ devices.
4. A user can save the time-domain data and import it into DASYLab for analysis.
5. The WedDAQ binary data file format (.wdd) stores time-domain data from the WebDAQ device. Please reference this knowledgebase article for a description of the file format. https://kb.mccdaq.com/KnowledgebaseArticle50726.aspx
6. A user can view the time-domain data in the WebDAQ onboard application, but not make any modifications to the data before the FFT calculations.
7. Application note: https://www.mccdaq.com/appnotes/an127.aspx
8. There are various third-party applications on the market that users can use to import their time-domain data. Besides DASYLab, a user can use LabVIEW.
