At 14:55 14/09/98 -0700, you wrote: >Anyway, I thot you would like to know that is is not hard to design PIC >projects that will pass EMI tests, even if you use no shielding at all. Thanks- that was interesting info- I suspect the FCC limits are similar to EMC ones. As mentioned, I did some of the design work on one board a couple of hundred metres from a large AM transmitter- that was a very informative period! It was a great opportunity to have a go at various layouts, and see the real effect of wire lengths, slightly poor connections on prototype board etc. Nigel