\documentclass{scrartcl}
\usepackage{color}
\usepackage{multicol}
\usepackage[final]{graphicx}
\usepackage{pst-plot,pstricks}
	\input{pstplot-logarithmic-axes}
\begin{document}
	\psset{xunit=1cm,yunit=1cm}
	\begin{pspicture}(-7.5,-0.5)(7.5,3.5)
		\psgrid[xunit=1,yunit=1,subgriddiv=0,griddots=5,gridlabels=0](-7,0)(7,3)
		\psaxes[Dx=10,Dy=5]{->}(0,0)(-7.5,-0.5)(7.5,3)
		\psplot[plotstyle=curve]{-6}{6}{x 19.1 mul cos 1.4 mul 1.49 add sqrt}
		\rput(-6,-0.3){$-\omega_3$}
		\rput(-4,-0.3){$-\omega_2$}
		\rput(-2,-0.3){$-\omega_1$}
		\rput(-0.5,2){$1,7$}
		\rput(2,-0.3){$-\omega_1$}
		\rput(4,-0.3){$-\omega_2$}
		\rput(6,-0.3){$-\omega_3$}
		\rput(7.5,0.3){$\omega$}
		\rput(0,3.5){$\left|\underline{H}\left(j\omega\right)\right|$}
	\end{pspicture}
\end{document}
