diff --git a/tools/plot_antenna_params.py b/tools/plot_antenna_params.py
index c5a1c44f..80bdb87b 100644
--- a/tools/plot_antenna_params.py
+++ b/tools/plot_antenna_params.py
@@ -243,7 +243,7 @@ ax.plot(freqs[pltrange], s11[pltrange], 'g', lw=2)
 ax.set_title('s11')
 ax.set_xlabel('Frequency [Hz]')
 ax.set_ylabel('Power [dB]')
-#ax.set_xlim([0.88, 1.02])
+#ax.set_xlim([0.88e9, 1.02e9])
 #ax.set_ylim([-50, -8])
 ax.grid()
 
@@ -257,8 +257,9 @@ ax.plot(freqs[pltrange], zin[pltrange].real, 'g', lw=2)
 ax.set_title('Input impedance (resistive)')
 ax.set_xlabel('Frequency [Hz]')
 ax.set_ylabel('Resistance [Ohms]')
-#ax.set_xlim([0.88, 1.02])
+#ax.set_xlim([0.88e9, 1.02e9])
 ax.set_ylim(bottom=0)
+#ax.set_ylim([55, 95])
 ax.grid()
 
 # Plot input reactance (imaginery part of impedance)
@@ -271,8 +272,8 @@ ax.plot(freqs[pltrange], zin[pltrange].imag, 'g', lw=2)
 ax.set_title('Input impedance (reactive)')
 ax.set_xlabel('Frequency [Hz]')
 ax.set_ylabel('Reactance [Ohms]')
-#ax.set_xlim([0.88, 1.02])
-#ax.set_ylim([-1000, 1000])
+#ax.set_xlim([0.88e9, 1.02e9])
+#ax.set_ylim([-60, 60])
 ax.grid()
 
 # Plot input admittance (magnitude)
@@ -285,7 +286,7 @@ ax.plot(freqs[pltrange], np.abs(yin[pltrange]), 'g', lw=2)
 ax.set_title('Input admittance (magnitude)')
 ax.set_xlabel('Frequency [Hz]')
 ax.set_ylabel('Admittance [Siemens]')
-#ax.set_xlim([0.88, 1.02])
+#ax.set_xlim([0.88e9, 1.02e9])
 #ax.set_ylim([0.009, 0.015])
 ax.grid()
 
@@ -299,7 +300,7 @@ ax.plot(freqs[pltrange], np.angle(yin[pltrange], deg=True), 'g', lw=2)
 ax.set_title('Input admittance (phase)')
 ax.set_xlabel('Frequency [Hz]')
 ax.set_ylabel('Phase [degrees]')
-#ax.set_xlim([0.88, 1.02])
+#ax.set_xlim([0.88e9, 1.02e9])
 #ax.set_ylim([-45, 45])
 ax.grid()