Hiyall, Just acquired an HD-3030 RTTY converter, with manual but without the schematic or optional preselector and shift modules. I'd especially like to get my hands on a copy of the schematic, if anyone can help me out. I'm also looking for a schematic of the panadaptor option for the HD-5404, or the option board itself. Tnx es 73 de KF4FJH - RF Buchanan