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A preceding paper was concerned with the principles of a wave propagation experiment. These appeared suitable for a simultaneous determination of electron concentration N e  and of electron collision frequency v in a magnetoplasma. They considered measurements of the refractive index n and of wave polarization ϱ, both of which being determined by field strength ratios. In this paper supplementary numerical calculations are carried out using a plasma model that corresponds to conditions observable in the earth’s lower day time ionosphere and that is characterized by exclusively positive gradients of N e  . Furthermore, a modification of the original principle is discussed renouncing measurements of n and using only those of ϱ. Numerical calculations on error propagation demonstrate a significant superiority of the modified version. WKB solutions of coupled wave equations are used. As the plasma model includes local variations of the plasma parameters, the theory can be applied only to limited height and frequency intervals. These are deduced from the coupling parameter Ψ.

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Gleichzeitige Bestimmung von Elektronenkonzentration und Elektronenstoßzahl in einem örtlich langsam veränderlichen Magnetoplasma (Teil II) / Simultaneous Determination of Electron Concentration and Electron Collision Frequency in a Locally Slowly Varying Magnetoplasma (II)