diff --git a/lib/jt9.f90 b/lib/jt9.f90
index 663f196b4..2be912a6f 100644
--- a/lib/jt9.f90
+++ b/lib/jt9.f90
@@ -90,6 +90,18 @@ program jt9
 
 10   continue
 
+! Fix up the data in c0()
+     twopi=8.0*atan(1.0)
+     phi=0.
+     dphi=twopi*500.0/1500.0
+     do i=1,npts8
+        phi=phi+dphi
+        if(phi.gt.twopi) phi=phi-twopi
+        if(phi.lt.-twopi) phi=phi+twopi
+        c0(i)=cmplx(aimag(c0(i)),real(c0(i)))*cmplx(cos(phi),sin(phi))
+     enddo
+
+! Now do the decoding
      nutc=nutc0
      nstandalone=1
      call sync9(ss,tstep,f0a,df3,fpk)                 !Find sig, get rough freq
diff --git a/mainwindow.cpp b/mainwindow.cpp
index 4724e2ff0..5dc3f045e 100644
--- a/mainwindow.cpp
+++ b/mainwindow.cpp
@@ -1,4 +1,4 @@
-//-------------------------------------------------------------- MainWindow
+//--------------------------------------------------------------- MainWindow
 #include "mainwindow.h"
 #include "ui_mainwindow.h"
 #include "devsetup.h"