David C Brown gmail.com> writes: >=20 > Always puzzles me why they call this "keyless entry". Isn't the radio > device a key? >=20 There are numerous meanings of the word 'key' and the Oxford dictionary describes one as: "A small piece of shaped metal with incisions cut to fit the wards of a particular lock, which is inserted into a lock and turned to open or close = it" Thus the word "keyless" is a perfectly valid description of locking systems that do not use the aforementioned bits of metal to gain access. Mike --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .