A detector 1 for detecting a buried current carrying conductor comprises a digital homodyne receiver. The clothes receiving unit is for inputting a verification information. The demultiplexer is for receiving a normal stream and a channel change stream. , by way of a conveyor, along a transport pathway extending over a reagent-supply location, such as a reservoir supported at a fixed position in a base. The multiple stimulating elements are distributed around a central axis of the coil. There are different types of transaction diagnostic blocks to accept diagnostic information depending on the type of abort and other considerations.