Facsimile circuit monitor system.

摘要

In a facsimile circuit monitor system, a control signal to be transmitted or received is initially converted into a code easy to be stored in a memory in order that the signal can be readily stored in the memory. When a certain signal has been received, a signal level is calculated on the basis of actual gain of an AGC (automatic gain control) and stored in the memory so that information stored in the memory may be outputted.