--- a/src/lte/model/lte-spectrum-phy.cc	Wed Jan 11 13:44:25 2012 +0100
+++ b/src/lte/model/lte-spectrum-phy.cc	Wed Jan 11 18:31:34 2012 +0100
@@ -280,6 +280,7 @@
       Ptr<LteSpectrumSignalParameters> txParams = Create<LteSpectrumSignalParameters> ();
       txParams->duration = Seconds (tti);
       txParams->txPhy = GetObject<SpectrumPhy> ();
+      txParams->txAntenna = m_antenna;
       txParams->psd = m_txPsd;
       txParams->packetBurst = pb;
       m_channel->StartTx (txParams);