set terminal qt 0 enhanced font "Georgia,14" size _w,_h
#set terminal pngcairo notransparent nocrop truecolor rounded enhanced font "Georgia,14" fontscale 1.0 size _w,_h
-#set output 'pulse_distance_modulation.png'
+#set output 'symbols_distances.png'
set multiplot layout 2, 1 title "Relative symbol distances (receiver)" font "Georgia,14"