Todd-AO has updated Absentia DX to v2.1, an upgrade now with HumRemover EMI (Electro Magnetic field Interference). The new tool removes hums and harmonics produced by Electro Magnetic field Interference such as Radio Frequency or Transmitters.
Price: $70.
See Hum Remover EMI in action: YouTube.com/watch?v=h87ChEVAJG8