diff --git a/script/jitter_scan.py b/script/jitter_scan.py
index 1d64bdf..e1f8baf 100644
--- a/script/jitter_scan.py
+++ b/script/jitter_scan.py
@@ -1,7 +1,7 @@
 
 
 
-import  ch.psi.pshell.epics.Channel as Channel
+import  ch.psi.pshell.epics.ChannelDouble as PV
 
 latency = 0.3
 
@@ -21,9 +21,8 @@ print "Stop = ", stop
 print "Step = ", step
 
 # controlled variabales
-cv_rf_phase = Channel(SECTION + "-RLLE-DSP:PHASE-REFERENCE",'d')
-print cv_rf_phase.is_connected
-cv_rf_phase.close()
+cv_rf_phase = PV(SECTION + "-RLLE-DSP:PHASE-REFERENCE",'d')
+print cv_rf_phase.readAsync()
 #cv_rf_amplt = ChannelDouble(SECTION + "-RLLE-DSP:AMPLT-REFERENCE")