reset

set term postscript enhanced eps color size 8.6cm,6cm font "Helvetica, 16pt" dashlength 2.0
set output 'spectrum2.eps'

# set key font "Helvetica, 24" at 300,-40 
set ylabel 'Power (dBm)' 
#font "Helvetica, 26" offset -2,0
set xlabel 'Frequency (MHz)' 
# font "Helvetica, 26" 
# set key at 200,-35
#set xlabel 'output' 
set xrange [0:200]
set yrange [-90:-40]
set xtics
set ytics
#set xtics offset 1,-1

set label 1 "electronic noise" at 40,-70
set label 2 "{/Times-Italic i}_1 only" at 55,-45
set arrow 1 from 52,-45 to 37,-45 lc rgb 'blue'
set label 3 "{/Times-Italic i}_1-{/Times-Italic i}_2" at 140,-56
set arrow 2 from 135,-56 to 120,-56 lc rgb 'red'
set label 4 "shot noise (theory)" at 125,-50

# figure1
# set origin 0,0
# set title '' font "Helvetica, 28"
plot 'electronic.spa' using 3:2 w l lt 1 lc rgb 'black' notitle,\
     'classical.spa' using 3:2 w l lw 2 lt 1 lc rgb 'blue' notitle, \
     'balanced.spa' using 3:2 w l lw 2 lt 1 lc rgb 'red' notitle, \
     -52.0 w l lt 1 dashtype 2 lc rgb "black" notitle