Index: trunk/BNS/bnshelp.html
===================================================================
--- trunk/BNS/bnshelp.html	(revision 1106)
+++ trunk/BNS/bnshelp.html	(revision 1107)
@@ -429,5 +429,5 @@
 </li>
 <li>
-Currently BNS can only generate the tentative RTCM Version 3.x message Type 4056 and 4057 for combined GPS and GLONASS orbit and clock corrections.
+Currently BNS can only generate the tentative RTCM Version 3.x message Type 4056 and 4057 for combined GPS and GLONASS orbit and clock corrections. Note that the length of data fields in these messages is not yet standardized. What's implemented in BNS is just a temporary solutions.
 </li>
 <li>