MRC:
Characteristics or qualities of an item,not covered in any other requirement,which are considered essential information for one or more functions excluding nsn assignment.SUPP
Supplementary Features:
Contains specially designed test set panels which when interfaced with associated instruments will provide power and signal inputs and monitor outputs; measures continuity, waveforms, voltage and currents and provides electrical loads; speaker to monitor received audio signal is located in front panel; input/output components are located in top panel; power supplies; cooling air fan; line filter