diff --git a/simulations/airshower_beacon_simulation/Makefile b/simulations/airshower_beacon_simulation/Makefile
index 6ab7b77..cd88258 100644
--- a/simulations/airshower_beacon_simulation/Makefile
+++ b/simulations/airshower_beacon_simulation/Makefile
@@ -29,13 +29,19 @@ all: beacon clocks phases findks vary-fixes reconstruct
 
 beacon:
 	./aa_generate_beacon.py -N ${TRACE_N} -P ${TRACE_PRE} -n ${NOISE_SIGMA} -a ${BEAC_AMP} -f ${BEAC_F} -l ${PB_LOW} -u ${PB_HIGH} -d ${BEAC_DECAY} --data-dir ${DATA_DIR} --input-fname ${INPUT_DIR} | tee ${FIG_DIR}/aa.log
-	./ab_modify_clocks.py 0 --data-dir ${DATA_DIR} | tee ${FIG_DIR}/ab.log
+	./ab_modify_clocks.py 0 --no-save-clocks --data-dir ${DATA_DIR} | tee ${FIG_DIR}/ab.log
 	./ac_show_signal_to_noise.py --no-show-plots --fig-dir=${FIG_DIR} --data-dir ${DATA_DIR}
 	./view_beaconed_antenna.py 72 -p x -p y -p z -p n -p b --ft --no-show-plots --fig-dir=${FIG_DIR} --data-dir ${DATA_DIR}
 
-clocks:
+new-clocks:
 	./ab_modify_clocks.py ${CLK_DEV} --seed ${SEED} --gaussian --data-dir ${DATA_DIR}
 
+clocks:
+	./ab_modify_clocks.py ${CLK_DEV} --read-clocks-file --seed ${SEED} --gaussian --data-dir ${DATA_DIR}
+
+reset-clocks:
+	./ab_modify_clocks.py 0 --data-dir ${DATA_DIR}
+
 phases:
 	./ba_measure_beacon_phase.py --N-mask ${N_MASK} --no-show-plots --fig-dir=${FIG_DIR} --data-dir ${DATA_DIR}
 	./bb_measure_clock_phase.py --no-show-plots --fig-dir=${FIG_DIR} --data-dir ${DATA_DIR}
diff --git a/simulations/airshower_beacon_simulation/ab_modify_clocks.py b/simulations/airshower_beacon_simulation/ab_modify_clocks.py
index eedf05f..b0e5978 100755
--- a/simulations/airshower_beacon_simulation/ab_modify_clocks.py
+++ b/simulations/airshower_beacon_simulation/ab_modify_clocks.py
@@ -27,6 +27,7 @@ if __name__ == "__main__":
     parser.add_argument('--uniform', action='store_const', const='uniform', dest='dist_type')
     parser.add_argument('--gaussian',   action='store_const', const='gauss', dest='dist_type')
     parser.add_argument('-r','--read-clocks-file', action='store_true', dest='read_clocks_file')
+    parser.add_argument('--no-save-clocks', action='store_false', dest='save_clocks')
     parser.set_defaults(dist_type='gauss')
 
     parser.add_argument('--data-dir', type=str, default="./data", help='Path to Data Directory. (Default: %(default)s)')
@@ -115,6 +116,7 @@ if __name__ == "__main__":
             h5ant['E_AxB'][0, :] += clk_offset
 
     # save to simple csv
-    np.savetxt(clocks_fname, clock_offsets)
+    if args.save_clocks:
+        np.savetxt(clocks_fname, clock_offsets)
 
     print("Antenna clocks modified in " + str(antennas_fname))