On Monday, May 24, 2004, at 01:19 US/Pacific, Howard Winter wrote: >>> >>> Where can I find a transponder receiver circuit that can detect a >>> transponder in a distance up to 1m >>> Ah, so is that "1 mile" or "1 meter" ? It would seem to make a big difference in figuring out what sort of "transponder" you're talking about. (even 1mile seems awfully short-range for the aircraft transponders that everyone is talking about...) BillW -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body