The theoretical output level at which the second-order two-tone distortion products are equal in power to the desired signals. The calculation is based on the following equation
where
IM2 = 2nd order Intermodulation level (dBm)
P0 = Single tone output power (dBm)
OIP2 = Output second-order intercept point (dBm)
See Mathematical Definitions and Derivations for more information.