Radio triangulation results of LF-type II plotted in detail to show the effect of non-radial propagation of the emitting source. The units are solar radii (R_⊙), and the Sun is at the center of the coordinate system. A ray is drawn from the centre of the Sun (0, 0, 0) or R_⊙ = 0 to centres of different sources. Panel a: result when the ray is drawn employing the highest frequency (Purple, 925/916 kHz) pair. The projection is shown in detail in the line profile adjacent to it. Panel b: result when the ray is drawn towards the lowest frequency (Red, 625/624 kHz) pair. The result of the orthogonal projection is shown in the profile adjacent to it.