Index: trunk/BNC/src/rinex/rnxobsfile.cpp
===================================================================
--- trunk/BNC/src/rinex/rnxobsfile.cpp	(revision 6259)
+++ trunk/BNC/src/rinex/rnxobsfile.cpp	(revision 6260)
@@ -1180,4 +1180,11 @@
           break;
         }
+
+        // Handle old-fashioned SNR values
+        // -------------------------------
+        if (rnxObs.snr != 0 && !frqObs->_snrValid) {
+          frqObs->_snrValid = true;
+          frqObs->_snr      = rnxObs.snr;
+        }
       }
     }