diff --git a/schainpy/model/io/__init__.py b/schainpy/model/io/__init__.py
index 93f0ed6..4b8b73c 100644
--- a/schainpy/model/io/__init__.py
+++ b/schainpy/model/io/__init__.py
@@ -9,10 +9,10 @@ from jroIO_spectra import *
 from jroIO_heispectra import *
 from jroIO_usrp import *
 
-try:
-    from jroIO_usrp_api import *
-except:
-    print "jroIO_usrp_api could not be imported"
+# try:
+#     from jroIO_usrp_api import *
+# except:
+#     print "jroIO_usrp_api could not be imported"
     
 try:
     from jroIO_amisr import *
diff --git a/schainpy/model/io/jroIO_usrp_api.py b/schainpy/model/io/jroIO_usrp_api.py
index 893b2fe..7029df5 100644
--- a/schainpy/model/io/jroIO_usrp_api.py
+++ b/schainpy/model/io/jroIO_usrp_api.py
@@ -7,10 +7,10 @@ import time
 import threading
 import cPickle
 
-try:
-    from gevent import sleep
-except:
-    from time import sleep
+# try:
+#     from gevent import sleep
+# except:
+from time import sleep
 
 SERIALIZER = cPickle