If Fast or Very Fast measurement speeds are selected when the channel configuration is such that a gated signal could reasonably be expected from the mobile station the Normal measurement speed algorithm will be applied even though a different measurement speed is selected. (Agilent)

The gating window starts at a random state and is available after the first period of the gated signal. (National Center for Biotechnology Inform)

As seen above, the pulse gating creates a pulse train in the baseband signal which describes the same envelope as an ungated signal. After filtering, the frequency content of the gated signal is identical to the ungated signal, but an amplitude loss occurs due to the gating duty cycle. (Sensor Concepts, Inc.)