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Hi Marc

I have a signal and I am able to construct the seismogram.But when I am doing active f-k analysis.It says 'No source found for signal'.How to rectify this.I have velocity data in a txt file.Its MASW data.I am attaching the picture for reference.
Please help.How to set source.

Hi,

The source is searched in the Event table. There must be an event which matches with the time range of your signal. Are you recording with a pre-trigger, a usual good practice? I checked in the source code.: if the source time is not included in the recording range, the source is not identified. There is an option to specified a minimum velocity and extend the search before the recording range. It is currently not used and I can't remember why. This should be investigated. Can you submit a file example?

Best regards,

Marc