diff --git a/simulations/11_pulsed_timing.py b/simulations/11_pulsed_timing.py
index 6b8a69f..6bd5d47 100755
--- a/simulations/11_pulsed_timing.py
+++ b/simulations/11_pulsed_timing.py
@@ -6,6 +6,11 @@ from scipy import signal, interpolate
 import matplotlib.pyplot as plt
 import numpy as np
 
+try:
+    from tqdm import tqdm
+except:
+    tqdm = lambda x: x
+
 rng = np.random.default_rng()
 
 class Waveform:
@@ -105,15 +110,16 @@ def template_downsampler(template_signal, trace, template_t, trace_t, offset):
 if __name__ == "__main__":
     import os
     import matplotlib
+    import sys
     if os.name == 'posix' and "DISPLAY" not in os.environ:
         matplotlib.use('Agg')
 
-    template_dt = 5e-2 # ns
     bp_freq = (30e-3, 80e-3) # GHz
+    template_dt = 5e-2 # ns
     template_length = 100 # ns
-    noise_sigma_factor = 1e1 # keep between 10 and 0.1
+    noise_sigma_factor = 1e0 # keep between 10 and 0.1
 
-    N_residuals = 50*3
+    N_residuals = 50*3 if len(sys.argv) < 2 else int(sys.argv[1])
 
     antenna_dt = 2 # ns
     antenna_timelength = 2048 # ns
@@ -144,7 +150,7 @@ if __name__ == "__main__":
     # Find difference between true and templated times
     #
     time_residuals = np.zeros(N_residuals)
-    for j in range(N_residuals):
+    for j in tqdm(range(N_residuals)):
         do_plots = j==0
 
         # receive at antenna