Theoretical sounding depth of SESAME-PP as a function of the MUPUS-PEN position (in degrees with respect to the +X leg direction) when the transmitting electrodes are +X and MUPUS-PEN. The distance of 1 m indicated for the MUPUS-PEN electrode is the maximum theoretical deployment distance. At Abydos the final deployment distance was ≈60 cm (Spohn et al. 2015).