title: Signs of frequencies and phases in NMR: the role of radiofrequency mixing.
abstract: This article analyzes the influence of the radiofrequency mixing scheme on the sign of phase shifts experienced by the nuclear spins. It is an addendum to a previous article on the signs of phases and frequencies in NMR (M. H. Levitt, J. Magn. Reson. 126, 164 (1997)).
authors.affiliation: Physical Chemistry Division, Stockholm University, Stockholm, S-10691, Sweden.
authors.forename: M H
authors.initials: MH
authors.lastname: Levitt
authors.forename: O G
authors.initials: OG
authors.lastname: Johannessen
mesh_terms: D009682:Magnetic Resonance Spectroscopy; D011846:Radio Waves; D012815:Signal Processing, Computer-Assisted