"621.384/2/0285416" . . "The Radio Hacker's Codebook is a book for computer enthusiasts written by George Sassoon. The book explains how to receive international radioteletype signals, convert them with a circuit and then decode them on a microcomputer. In the case of this book the computer is the superseded Research Machines 380Z. Programs to do these functions are given, written in machine code and BASIC. However legal and moral issues relating to intercepting messages are not included."@en . "ISBN 0715620681" . "The Radio Hacker's Codebook"@en . "239"^^ . .