I've been reading a lot about this topic and I found especially interesting this thread: WXTides Stations (Lots) in OpenCPN
I would like to thank Ptizef the great work he did about this topic in Spain(which is my country) and Europe
in general. The only problem is that I would like to access the data with Xtide. In order to do that I need the HARMONICS to be a .tdc file. I tried with build_tide_db on Linux
put it says: Error creating data base file.
I have congen in my computer and I guess Pierre genereted this file using congen. Do you know how I could transform this HARMONICS file to a tcd file so i could read it with Xtide?