Index: trunk/www/dch/ratescans.php
===================================================================
--- trunk/www/dch/ratescans.php	(revision 18206)
+++ trunk/www/dch/ratescans.php	(revision 18881)
@@ -43,4 +43,5 @@
 echo "Black: Patch rates vs threshold<br>\n";
 echo "Gray: Ratescan with good conditions (1.1.2014, id=1388617563)<br>\n";
+echo "&Delta;U: offset to nominal setup voltage (reference changed on 15.9.2014) <br>\n";
 echo "</body>\n";
 echo "</html>\n";