Index: trunk/BNC/rinex/reqcedit.cpp
===================================================================
--- trunk/BNC/rinex/reqcedit.cpp	(revision 3989)
+++ trunk/BNC/rinex/reqcedit.cpp	(revision 3990)
@@ -98,5 +98,8 @@
     const t_rnxObsFile::t_rnxEpo* epo = 0;
     while ( (epo = obsFile->nextEpoch()) != 0) {
-      outObsFile.writeEpoch(epo);
+      if ( (!_begTime.valid() || epo->tt >= _begTime) && 
+           (!_endTime.valid() || epo->tt <= _endTime) ) {
+        outObsFile.writeEpoch(epo);
+      }
     }
   }