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Hi Kwan, re: > I have done through downloading X11. OK. re: > I am not sure if I should download > LDM. So, you run LDM to decode your own point data, for example, for > McIDAS and GEMPAK, right? Yes and to get a feed of the realtime satellite imagery in the UNIWISC and NIMAGE feeds. BUT, if you are doing this for private use, you may have a hard time finding an site that is willing to feed you the data via the LDM. Given this, you can skip (for now, at least) installing the LDM. Cheers, Tom -- **************************************************************************** Unidata User Support UCAR Unidata Program (303) 497-8642 P.O. Box 3000 address@hidden Boulder, CO 80307 ---------------------------------------------------------------------------- Unidata HomePage http://www.unidata.ucar.edu **************************************************************************** Ticket Details =================== Ticket ID: JAV-781741 Department: Support McIDAS Priority: Normal Status: Closed