An abbreviation for decibel millivolt. The level at any point in a System expressed in dB's above or
below a 1 millivolts (dBmV). Zero dBmV is equal to 1 millivolt across 75 ohms. The level at any point in
a system expressed in dBs above or below a 1 millivolt/75 Ohm standard is said to be the level in
decibel millivolts or dBmV.