A good lab is a big asset. We use EMI Testlabs here in Longmont CO. Dennis uses a G-TEM cell which makes it very fast and easy to do the basic scans Chambers and open field sites have their place, but generally a lot more time and money. --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .