Efficiency at high spinning frequencies of heteronuclear decoupling methods designed to quench rotary resonance

► PISSARRO and high-phase TPPM have been probed at high spinning frequencies. ► High-phase TPPM may be useful at the n=1 rotary resonance condition. ► PISSARRO permits efficient decoupling over a broad range of rf amplitudes. ► PISSARRO is especially suitable for very high magnetic fields.