In this work, we explore cross-polarization to satellite-transitions of half-integer quadrupolar nuclei. Specifically, the two-step 1 H → X → 1 H or double CP (DCP), for 1 H detected HETCOR experiment under fast MAS. In 2017, Carnevale et al. reported a highly efficient proton-detected 1 H/ 14 N experiment using DCP under MAS above 60 kHz . It was a surprise observation considering that the amide 14 N has spinning sideband (ssb) manifolds that spread over several MHz. No one-step CP had previously been reported even for smaller quadrupolar couplings. This observation motivated subsequent studies on long rf pulses under large anisotropic interactions modulated by MAS. Using average Hamiltonian theory (AHT) in the quadrupolar jolting frame (QJF), the effective rf field can be derived and the result shows a scaling by the complex intensity of the spinning sideband near the rf frequency .