--- a/src/spectrum/model/wifi-spectrum-value-helper.cc	Sat Mar 15 21:44:06 2014 +0100
+++ b/src/spectrum/model/wifi-spectrum-value-helper.cc	Mon Mar 17 13:55:12 2014 +0100
@@ -105,10 +105,10 @@
   NS_ASSERT (channel >= 1);
   NS_ASSERT (channel <= 13);
 
-  (*rf)[channel - 1] = 1;
-  (*rf)[channel    ] = 1;
-  (*rf)[channel + 1] = 1;
-  (*rf)[channel + 2] = 1;
+  (*rf)[channel + 3] = 1;
+  (*rf)[channel + 4] = 1;
+  (*rf)[channel + 5] = 1;
+  (*rf)[channel + 6] = 1;
 
   return rf;
 }