diff --git a/script/Electric_field_loop.py b/script/Electric_field_loop.py
index 326f982..81048a4 100644
--- a/script/Electric_field_loop.py
+++ b/script/Electric_field_loop.py
@@ -2,7 +2,7 @@ import os
 import traceback
 import thread
 import time
-import numpy as np
+
 import datetime
 
 #ID settings
@@ -31,8 +31,8 @@ dB = Max/No_of_steps;
 Noavg = 5;
 
 
-forward=np.linspace(-14,14,7)
-reverse=np.linspace(14,-14,7)
+forward=frange(-14,14,7)
+reverse=frange(14,-14,7)