This read-write object selects whether the receive spectrum is treated as normal(0) or inverted(1). Functionally identical to cdd564RxSpectrumInversion, this must match the actual spectral orientation of the incoming signal after any LNB or downconverter translation, and an incorrect setting here is a classic cause of a demodulator that shows RF lock indicators yet fails to correctly recover data. When receiving from a satellite path known to invert the spectrum through a particular LNB model, an admin would set this to inverted(1) to correctly demodulate that specific feed.