Index: trunk/BNC/src/upload/bncrtnetuploadcaster.cpp
===================================================================
--- trunk/BNC/src/upload/bncrtnetuploadcaster.cpp	(revision 9509)
+++ trunk/BNC/src/upload/bncrtnetuploadcaster.cpp	(revision 9510)
@@ -945,4 +945,6 @@
     struct SsrCorr::ClockOrbit::SatData* sd, QString& outLine) {
 
+  QMutexLocker locker(&_mutex);
+
   // Broadcast Position and Velocity
   // -------------------------------