HSQC with gradients that select the echo and antiecho pathways.
Checked against A. L. Davis, J. Keeler, E. D. Laue, D. Moskau, J. Magn. Reson. 98, 207–216 (1992), doi:10.1016/0022-2364(92)90126-R; Bruker pulse program hsqcetgp.
Process NMR spectra in NMRium and draw pulse sequences, from a library of standard experiments or column by column, and save both as figures that open again. The site needs JavaScript, because every spectrum and figure is handled in your browser.