diff --git a/simulations/airshower_beacon_simulation/aa_generate_beacon.py b/simulations/airshower_beacon_simulation/aa_generate_beacon.py
index eaaba93..bb05fec 100755
--- a/simulations/airshower_beacon_simulation/aa_generate_beacon.py
+++ b/simulations/airshower_beacon_simulation/aa_generate_beacon.py
@@ -303,9 +303,14 @@ if __name__ == "__main__":
 
     # make beacon per antenna
     for i, antenna in enumerate(ev.antennas):
-        t0 = lib.distance(tx, antenna)/3e8 * 1e9 # ns
+        if False:
+            t0 = lib.distance(tx, antenna)/3e8 * 1e9 # ns
+            c_light = np.inf
+        else:
+            t0 = 0
+            c_light = 3e8*1e-9 # m/ns
 
-        beacon = lib.beacon_from(tx, antenna, f_beacon, antenna.t, t0=t0, c_light=np.inf, radiate_rsq=beacon_radiate_rsq)
+        beacon = lib.beacon_from(tx, antenna, f_beacon, antenna.t, t0=t0, c_light=c_light, radiate_rsq=beacon_radiate_rsq)
 
         traces = np.array([antenna.Ex, antenna.Ey, antenna.Ez, beacon])
 
diff --git a/simulations/airshower_beacon_simulation/ab_modify_clocks.py b/simulations/airshower_beacon_simulation/ab_modify_clocks.py
index 5de3b44..61f7acd 100755
--- a/simulations/airshower_beacon_simulation/ab_modify_clocks.py
+++ b/simulations/airshower_beacon_simulation/ab_modify_clocks.py
@@ -53,7 +53,10 @@ if __name__ == "__main__":
 
         N_antennas = len(group.keys())
 
-        clock_offsets = max_clock_offset * (2*rng.uniform(size=N_antennas) - 1)
+        if True: # uniform
+            clock_offsets = max_clock_offset * (2*rng.uniform(size=N_antennas) - 1)
+        else: # normal
+            clock_offsets = max_clock_offset * rng.normal(0, 1, size=N_antennas)
 
         # modify time values of each antenna
         for i, name in enumerate(group.keys()):
diff --git a/simulations/airshower_beacon_simulation/ba_beacon_phases.py b/simulations/airshower_beacon_simulation/ba_beacon_phases.py
index 85f42b1..b4fffac 100755
--- a/simulations/airshower_beacon_simulation/ba_beacon_phases.py
+++ b/simulations/airshower_beacon_simulation/ba_beacon_phases.py
@@ -29,6 +29,8 @@ if __name__ == "__main__":
 
     fname = "ZH_airshower/mysim.sry"
 
+    print("use_AxB_trace:", use_AxB_trace, "use_beacon_trace:",use_beacon_trace)
+
     ####
     fname_dir = path.dirname(fname)
     antennas_fname = path.join(fname_dir, beacon.antennas_fname)
@@ -140,14 +142,16 @@ if __name__ == "__main__":
 
             if show_plots and (i == 60 or i == 72):
                 fig, ax = plt.subplots()
+                ax.set_title(f"Beacon at antenna {h5ant.attrs['name']}\nF:{frequency:.2e}, P:{phase:.4f}, A:{amplitude:.1e}")
                 ax.set_xlabel("t [ns]")
                 ax.set_ylabel("Amplitude")
 
-                myt = np.linspace(min(t_trace), max(t_trace), 10*len(t_trace))
                 for i, trace in enumerate(test_traces):
                     ax.plot(t_trace, test_traces[i], marker='.', label='trace '+orients[i])
+
+                myt = np.linspace(min(t_trace), max(t_trace), 10*len(t_trace))
                 ax.plot(myt, lib.sine_beacon(frequency, myt, amplitude=amplitude, phase=phase), ls='dashed', label='simulated beacon')
-                ax.set_title(f"Beacon at antenna {h5ant.attrs['name']}\nF:{frequency:.2e}, P:{phase:.4f}, A:{amplitude:.1e}")
+
                 ax.legend()
 
             # save to file
diff --git a/simulations/airshower_beacon_simulation/bb_beacon_true_phases.py b/simulations/airshower_beacon_simulation/bb_beacon_true_phases.py
index 71a4676..1eadd84 100755
--- a/simulations/airshower_beacon_simulation/bb_beacon_true_phases.py
+++ b/simulations/airshower_beacon_simulation/bb_beacon_true_phases.py
@@ -38,7 +38,7 @@ if __name__ == "__main__":
     import sys
 
     fname = "ZH_airshower/mysim.sry"
-    c_light = 3e8*1e-9
+    c_light = 3e8*1e-9 # m/ns
     show_plots = True
 
     remove_absolute_phase_offset_first_antenna = True # takes precedence
@@ -66,7 +66,6 @@ if __name__ == "__main__":
     for freq_name in antennas[0].beacon_info.keys():
         true_phases = antenna_true_phases(tx, antennas, freq_name, c_light=c_light)
 
-
         # Remove the phase from one antenna
         # this is a free parameter
         # (only required for absolute timing)