Paul Hutchinson wrote: > Actually, the Blue Hill Observatory uses the modern NWS automated > equipment as its primary data source. However, they maintain a large > range of redundant instruments (classic and modern) and use human > observers to catch and correct errors in the automated system and, > prevent missed data due to equipment failure. Ah, this makes more sense :) Thanks, Gerhard -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist