On Fri, Mar 24, 2006 at 12:08:25PM -0500, DJ Delorie wrote: > > > Send a picture of your system. > > The existing system is here: http://www.delorie.com/house/furnace/ > There's a cover for the box, when attached the only opening is along > the bottom where the wires go.
You board is missing a groundplane. The case is not a shielding case. I suggest to add a groundplane to the board and make the case shielding. > > No pictures of the new system yet. > > > Take a 300MHz bandwidth DSO which can do the bandwidth without > > interlacing. > > Don't have one, can't afford one. With this design you don't have to anymore I think the problem is obvious. CL<