Index: /trunk/BNC/src/combination/bnccomb.cpp
===================================================================
--- /trunk/BNC/src/combination/bnccomb.cpp	(revision 9258)
+++ /trunk/BNC/src/combination/bnccomb.cpp	(revision 9259)
@@ -833,5 +833,5 @@
   int maxSat = _cmbSysPrn[sys];
 
-  const int nCon = (_method == filter) ? 1 + maxSat : 0; //(maybe not for GLONASS)
+  const int nCon = (_method == filter) ? 1 + maxSat : 0;
 
   AA.ReSize(nObs+nCon, nPar);  AA = 0.0;
@@ -871,10 +871,13 @@
       }
     }
-    int iCond = 1;
     unsigned flag = 0;
     if (sys == 'E') {
       flag = 1;
     }
-    // GNSS (maybe not for GLONASS)
+    if (sys == 'R') {
+      return success;
+    }
+    int iCond = 1;
+    // GNSS
     for (unsigned iGnss = 1; iGnss <= _cmbSysPrn[sys]; iGnss++) {
       QString prn = QString("%1%2_%3").arg(sys).arg(iGnss, 2, 10, QChar('0')).arg(flag);