I recently read an article that said devices with clock frequencies below 9= KHz=20 do not need FCC or European EMC emissions approvals. I have a number of=20 non-critical applications that could run at a clock frequency of say 8KHz. = Are=20 PICs with RC oscillators viable at this low a frequency? Are there any spec= ial=20 issues I should be aware of? Cheers Ian --=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 .