Sorry, I should have marked the previous message [EE]. Here's the text. For the last 15 years I've been using an Agilent 54622D scope that was purchased by my employer. I'm retiring in a few months and won't be able to take this with me, so I'm looking at replacements. The Agilent scope has been used almost exclusively for PIC development projects. It is an MSO, but I found that I almost never used more than 3 of it's logic channels at a time. This scope has 200MSamples/sec. for a single channel. I am contemplating a Rigol DS1104Z. I have been looking at Rigol scopes because they seem to offer more bang for the buck (this time I'm paying for it myself). I'm trying to decide whether spending almost twice as much for a 2GSample/sec scope as for a 1GSample/sec scope. Anyone have any thoughts on what practical advantages I would gain from going for the 2GSample/sec option? Thanks, John --=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 .