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The lines of code you are referencing actually just handle the conversion of range and azimuth to x and y coordinates. I suspect that your problem is just an error in calculating the range, not due to CF-Radial (tools treating the CF-Radial as grids would produce much different errors). How are you obtaining the size of the gates? The product itself contains no information about the maximum range, but the ICD document you found (and I sent) specifies that the maximum range of the digital VIL product you are plotting is 460km. If you divide that range evenly across the gates you have, that should do it. For something like VIL, which combines data from multiple elevations, you should not have to correct for elevation angle. Ticket Details =================== Ticket ID: LOE-612985 Department: Support netCDF Java Priority: Normal Status: Open