Index: trunk/BNC/src/rinex/rnxobsfile.cpp
===================================================================
--- trunk/BNC/src/rinex/rnxobsfile.cpp	(revision 7807)
+++ trunk/BNC/src/rinex/rnxobsfile.cpp	(revision 7808)
@@ -395,4 +395,5 @@
   _usedSystems     = header._usedSystems;
   _comments        = header._comments;
+  _comments.removeDuplicates();
 
   for (unsigned iPrn = 1; iPrn <= t_prn::MAXPRN_GPS; iPrn++) {