I remember doing the same on a ZX-81 clone. There was a noise filter embedded in the decoding software. The result was amazing! Excelent decoding, even with noise. Good times those! Mark Jordan - PY3SS On 16 Mar 2007 at 17:03, Tamas Rudnai wrote: > Long long time ago when my Apple II a less powerful CPU than a PIC nowaday > :-) so I wrote a Morse decoder that was independent of the speed. I used to > store the ABC in the same fashion, so the trick was to store the length of > the ti-ta's (bits) and then followed the 0/1s. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist