Algorithm 1. Algorithm to determine the depth range for data reception in a saltwater environment.

Data: $f_0$ sample frequencies $\sigma$ medium conductivity $\mu$ medium permeability $\epsilon$ permittivity of the medium $at{e}_{\sigma }$ penetration depth considering $\sigma$ $ate$ penetration depth considering $\sigma$, $\mu$ and $\epsilon$ begin For the penetration depth considering $\sigma$   for k = 0:1: $f_0\left(final\right)$ ($f_0\left(final\right)$ maximum value of $f_0$) do    $at{e}_{\sigma }=0.0173\sqrt{f_0·\sigma }$   end for For the penetration depth considering $\sigma ,{\mu }_0$ and ${\epsilon }_0$   for k = 0:1: $f_0\left(final\right)$ do    $\omega =2·\pi ·f_0$    $ate=\omega \sqrt{\mu ·\epsilon }{\left[\frac{1}{2}\sqrt{1+{\left(\frac{\sigma }{\omega ·\epsilon }\right)}^2-1}\right]}^{1/2}$   end for end