JezK
Edit File: 84.gnuplot
set table "gnuplot/bodegraph/84.table"; set format "%.5f" set samples 151; set parametric; plot [t=-3:2] 10**((20*log10(abs(4/sqrt(1+(0.5*10**t)**2)))+20*log10(abs(1/sqrt(1+(2*10**t)**2))))/20)*cos(3.1415957/180*(-180/3.1415957*atan(0.5*10**t)+-180/3.1415957*atan(2*10**t))),10**((20*log10(abs(4/sqrt(1+(0.5*10**t)**2)))+20*log10(abs(1/sqrt(1+(2*10**t)**2))))/20)*sin(3.1415957/180*(-180/3.1415957*atan(0.5*10**t)+-180/3.1415957*atan(2*10**t)))