Hi Art: For a single IC solution the ICS525 may be what you're looking for. It's used in some fox hunt transmitters. See my web page: http://www.pacificsites.com/~brooke/BTSG.shtml Have Fun & 73, Brooke Clarke, N6GCE -- w/Java http://www.PRC68.com w/o Java http://www.pacificsites.com/~brooke/PRC68COM.shtml http://www.precisionclock.com -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist