That was my impression also but recent correspondance on this list appears to indicate that you can, provided that two frequencies are transmitted and you know what they are. Richard P At 01:02 PM 3/12/01 +1300, Richard Prosser wrote: >Yes - but I was asking about a single RX with direction & range >determination. You can't get to range with a single receiver. Maybe in free space, using signal strength, but here on earth, it's not a happening thing. -- Dave's Engineering Page: http://www.dvanhorn.org Where's dave? http://www.findu.com/cgi-bin/find.cgi?kc6ete-9 -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body