diff --git a/lib/decoder.f90 b/lib/decoder.f90
index 8baf0668e..6c32802b2 100644
--- a/lib/decoder.f90
+++ b/lib/decoder.f90
@@ -66,6 +66,7 @@ subroutine decoder(ss,c0)
 
   kstep=nsps/2
   tstep=kstep/12000.0
+  idf=ntol/df3 + 0.999
 
   do nqd=1,0,-1
      if(nqd.eq.1) then
@@ -81,7 +82,7 @@ subroutine decoder(ss,c0)
      call timer('sync9   ',1)
 
      ccfok=.false.
-     ccfok(max(ipk-1,1):min(ipk+1,NSMAX))=.true.
+     ccfok(max(ipk-idf,1):min(ipk+idf,NSMAX))=.true.
      if(nqd.eq.1) then
         ia1=ia
         ib1=ib
diff --git a/lib/jt9a.F90 b/lib/jt9a.F90
index 84727c216..017510769 100644
--- a/lib/jt9a.F90
+++ b/lib/jt9a.F90
@@ -85,7 +85,6 @@ subroutine jt9c(ss,savg,c0,id2,nparams0)
   npatience=1
 
   call flush(6)
-  nstandalone=0
   if(sum(nparams).ne.0) call decoder(ss,c0)
 
   return
diff --git a/mainwindow.cpp b/mainwindow.cpp
index e064975ec..5655722a4 100644
--- a/mainwindow.cpp
+++ b/mainwindow.cpp
@@ -1,4 +1,4 @@
-//------------------------------------------------------------- MainWindow
+//-------------------------------------------------------------- MainWindow
 #include "mainwindow.h"
 #include "ui_mainwindow.h"
 #include "devsetup.h"