Index: trunk/BNC/src/bncrinex.cpp
===================================================================
--- trunk/BNC/src/bncrinex.cpp	(revision 4503)
+++ trunk/BNC/src/bncrinex.cpp	(revision 4504)
@@ -365,4 +365,5 @@
   if (_header._obsTypesV2.size() == 0) {
     if (_header._version < 3.0) {
+      addComments << "default set of observation types used";
     }
     _header._obsTypesV2 << "C1" << "P1" << "L1" << "S1" 
@@ -374,4 +375,5 @@
   if (_header._obsTypesV3.size() == 0) {
     if (_header._version >= 3.0) {
+      addComments << "default set of observation types used";
     }
     _header._obsTypesV3['G'] << "C1C" << "L1C" << "D1C" << "S1C"