A computer software program product, executable by a computer device, for identifying a source from an electromagnetic emission thereof, the electromagnetic emission being convertible into corresponding sensed emission data, said computer software program product comprising:
- a first executable portion for directing the collection of the sensed emission data;
- and
- a second executable portion for processing digital emission data, the digital emission data corresponding to the sensed emission data, so as to determine at least one of an identification indicator, an operational characteristic indicator, and an accessory characteristic indicator corresponding to the source.