diff --git a/model/leo-propagation-loss-model.cc b/model/leo-propagation-loss-model.cc
index 2aded5c..59810f5 100644
--- a/model/leo-propagation-loss-model.cc
+++ b/model/leo-propagation-loss-model.cc
@@ -37,6 +37,7 @@ LeoPropagationLossModel::DoCalcRxPower (double txPowerDbm,
   //Vector bPos = b->GetPosition ();
 
   // TODO perform line-earth intersection (ray tracing)
+  // TODO check angle between satellite and ground-station
 
   double rxc = 0;//-m_variable->GetValue ();
   //NS_LOG_DEBUG ("attenuation coefficient="<<rxc<<"Db");
diff --git a/model/mock-net-device.cc b/model/mock-net-device.cc
index 7d8f517..d182b03 100644
--- a/model/mock-net-device.cc
+++ b/model/mock-net-device.cc
@@ -286,6 +286,10 @@ MockNetDevice::TransmitStart (Ptr<Packet> p, const Address &dest)
     {
       m_phyTxDropTrace (p);
     }
+  else
+    {
+      NS_LOG_INFO ("[node " << m_node->GetId () << "] send packet on " << m_ifIndex << " to " << dest);
+    }
   return result;
 }
 
@@ -416,6 +420,7 @@ MockNetDevice::Receive (Ptr<Packet> packet, Ptr<MockNetDevice> senderDevice)
         }
 
       if (packetType != PACKET_OTHERHOST) {
+      	  NS_LOG_INFO ("[node " << m_node->GetId () << "] received packet on " << m_ifIndex << " from " << remote << " for " << header.GetDestination ());
       	  m_macRxTrace (originalPacket);
       	  m_rxCallback (this, packet, protocol, remote);
       }
diff --git a/test/leo-test-suite.cc b/test/leo-test-suite.cc
index ae11df7..4e42311 100644
--- a/test/leo-test-suite.cc
+++ b/test/leo-test-suite.cc
@@ -79,7 +79,7 @@ LeoTestCase1::DoRun (void)
   islCh.SetChannelAttribute ("PropagationDelay", StringValue ("ns3::ConstantSpeedPropagationDelayModel"));
   islCh.SetDeviceAttribute ("InterframeGap", TimeValue (Seconds (0.001)));
   //// TODO propagation loss from mobility model
-  islCh.SetChannelAttribute ("PropagationLoss", StringValue ("ns3::RangePropagationLossModel"));
+  islCh.SetChannelAttribute ("PropagationLoss", StringValue ("ns3::IslPropagationLossModel"));
   islNet = islCh.Install (satellites);
 
   LeoChannelHelper utCh;
@@ -91,7 +91,7 @@ LeoTestCase1::DoRun (void)
   utCh.SetSatDeviceAttribute ("InterframeGap", TimeValue (Seconds (0.001)));
   utCh.SetGndDeviceAttribute ("InterframeGap", TimeValue (Seconds (0.001)));
   // TODO propagation loss from mobility model
-  utCh.SetChannelAttribute ("PropagationLoss", StringValue ("ns3::RangePropagationLossModel"));
+  utCh.SetChannelAttribute ("PropagationLoss", StringValue ("ns3::LeoPropagationLossModel"));
   utCh.SetChannelAttribute ("PropagationDelay", StringValue ("ns3::ConstantSpeedPropagationDelayModel"));
   utNet = utCh.Install (satellites, terminals);
 
@@ -116,7 +116,7 @@ LeoTestCase1::DoRun (void)
 
   // we want to ping terminals
   UdpEchoServerHelper echoServer (9);
-  ApplicationContainer serverApps = echoServer.Install (terminals);
+  ApplicationContainer serverApps = echoServer.Install (terminals.Get (1));
 
   // install a client on one of the terminals
   ApplicationContainer clientApps;