Art, If you can send one ofyour Vis and multiband IR, I'll take a look. GEMPAK doesn't have an ADDE capability, so I'll need either an attachment, or you to post for www or ftp download. If you want to pursue McIDAS solution, I'll ask Tom to give you some suggestions. Steve Chiswell Unidata User Support Ticket Details =================== Ticket ID: UAL-239105 Department: Support GEMPAK Priority: Normal Status: Closed