Thank you everyone for the information. I now have an idea what comprise a radio clock receiver. I may at first attempt to design the whole circuit without using a commercial receiver IC. Basically I need to design a radio receiver circuit that is tuned to 60KHz signals. I also need a ferrite antenna. Can you point me to some online resources about designing a radio receiver circuit? Also where to look for a ferrite antenna? Thanks, Tony -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu