Richard Prosser wrote: > Thanks, I hadn't realised that the data slicer averaged over such a > short time interval. I'd assumed it was at least 8 to 10 bits and > likely to be more. Looks like I'd definately get an improvement if I > went to manchester type encoding. There are many ways to do a data slicer. In one of the receivers of the system I mentioned earlier, I fed the analog output of the two receivers directly into a dsPIC and did everything from there on in firmware. That included the data slicing. The dsPIC sampled sampled the analog signals at 100KHz and the manchester data rate was 10KHz. The firmware data slicer was faster and performed better than the all analog data slicer in the previous model. ******************************************************************** Embed Inc, Littleton Massachusetts, http://www.embedinc.com/products (978) 742-9014. Gold level PIC consultants since 2000. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist