> Fortunately we have intrepid Admins to parse the discourse... I'll assume a smiley there :-). The parsing engine's getting a wee bit scrambled lately with all the quality input re admin performance. So, a parsing of all the technical responses on this thread so far was inconclusive re what that refers to. It may have been the irrelevant but memorable stuff re Jodrell Bank near field (it is quite near fields too, or was when I visited in 2003), or maybe the thought that RFID bits and pieces may provide a readily accessible relatively low cost source of relevant bits and pieces, or maybe it was the reference to specific figures in a data sheet, which was not obviously relevant if looked at only by title or front page, or maybe the handful of links to potentially semi-relevant patents. But maybe none of that. So, I'll parse. R -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist