Dear @jorgecasas118 as you mentioned in the webinar, the X axis (scan widths) are not constant mainly due to the scans being manual i.e. start and end positions may not be constant or percise- but can we assume that the scan widths are calibrated with the physical distance traveresed by the GPR? i.e. that that the device wheels are calibrated to the scans and/or that there was a single device doing all the scans and that it didn't change its calibration in the whole dataset?