Fig. 6: Transfer function of the transmission model.

The baseline transfer function, assuming the parameters specified in Table 1, is represented by a black dashed line. The limiting parameter of each block (excluding block 6), i.e. R_S, C_H, C_Sh, C_Imp and C_Int, is varied individually by a 5-fold and 10-fold increase and decrease (×10, ×5, ÷5, ÷10) and the resulting shift in the transfer function is colored in dark blue, light blue, light yellow and dark yellow, respectively. A spike waveform is fed into the active line and, for each parameter variation (×10, ×5, ÷5, ÷10), the resulting shift in the coupled signal is colored using the same color code, alongside the baseline coupled signal (black dashed line). In the bottom-left corner, the spike waveform registered by the active line is depicted.