The present invention provides a process and system for matching buyers and sellers of either goods or services, or goods and services for a project. According to the method, the outgoing bit stream is coded into symbols, the channel distortion is compensated for by means of symbol preceding, the precoded symbols are sent over a communications channel, whereby means are provided for recovering symbols that have passed over the communications channel and via the signal processing means of the receiver into a bit stream. The analyzer is instructed to automatically create therefrom, by itself, the desired new trigger specification. Each of the arcs is defined using three points defined using geodetic coordinates. An initial address for the stream of addresses is the random access address stored in the address buffer register.