diff --git a/ofdm/timing_frame.m b/ofdm/timing_frame.m
index 89c2380..9ba58ae 100644
--- a/ofdm/timing_frame.m
+++ b/ofdm/timing_frame.m
@@ -11,7 +11,7 @@ if 1
     kc = 0;
     if ~isempty(Zi.Zk)
         Xk = Z .* conj(Zi.Zk);
-        if 1
+        if 0
             plot(0:length(Xk)-1, abs(Xk), '-*'); grid;
             pause (0.01); 
         end