Index: trunk/BNC/bncmodel.cpp
===================================================================
--- trunk/BNC/bncmodel.cpp	(revision 3286)
+++ trunk/BNC/bncmodel.cpp	(revision 3287)
@@ -425,5 +425,9 @@
   double antennaOffset = 0.0;
   if (_dN != 0.0 || _dE != 0.0 || _dU != 0.0) {
-
+    double cosa = cos(satData->azSat);
+    double sina = sin(satData->azSat);
+    double cose = cos(satData->eleSat);
+    double sine = sin(satData->eleSat);
+    antennaOffset = -_dN * cosa*cose - _dE * sina*cose - _dU * sine;
   }