Just in case anyone's interested, Dave W9GR sent me a copy of the code and object files for his DSP project that appears in the Sept 1992 QST and I have made it available for anonymous ftp (with his permission) on site ftp.usask.ca in directory pub/amiga/w9gr (the "amiga" is misleading but correct :-) 73 de Pete hardie at herald.usask.ca VE5VA