diff --git a/tools/cooja/apps/avrora/src/se/sics/cooja/avrmote/interfaces/MicaZRadio.java b/tools/cooja/apps/avrora/src/se/sics/cooja/avrmote/interfaces/MicaZRadio.java
index 2b3bcf340..d8ae03a14 100644
--- a/tools/cooja/apps/avrora/src/se/sics/cooja/avrmote/interfaces/MicaZRadio.java
+++ b/tools/cooja/apps/avrora/src/se/sics/cooja/avrmote/interfaces/MicaZRadio.java
@@ -111,7 +111,7 @@ public class MicaZRadio extends Radio802154 {
       return (int) cc2420.getFrequency();
   }
 
-  public boolean isReceiverOn() {
+  public boolean isRadioOn() {
       FiniteStateMachine fsm = cc2420.getFiniteStateMachine();
       /* based on reading the source code it seems that the fsm state = 3 means on */
       //System.out.println("COOJA: cc2420 FSM: " + fsm.getCurrentState());
diff --git a/tools/cooja/apps/mrm/java/se/sics/mrm/MRM.java b/tools/cooja/apps/mrm/java/se/sics/mrm/MRM.java
index 415447472..362418ed8 100644
--- a/tools/cooja/apps/mrm/java/se/sics/mrm/MRM.java
+++ b/tools/cooja/apps/mrm/java/se/sics/mrm/MRM.java
@@ -192,7 +192,7 @@ public class MRM extends AbstractRadioMedium {
       double recvSignalStrength = probData[1];
       if (recvProb == 1.0 || random.nextDouble() < recvProb) {
         /* Yes, the receiver *may* receive this packet (it's strong enough) */
-        if (!recv.isReceiverOn()) {
+        if (!recv.isRadioOn()) {
           newConnection.addInterfered(recv);
           recv.interfereAnyReception();
         } else if (recv.isInterfered()) {
diff --git a/tools/cooja/apps/mspsim/src/se/sics/cooja/mspmote/interfaces/Msp802154Radio.java b/tools/cooja/apps/mspsim/src/se/sics/cooja/mspmote/interfaces/Msp802154Radio.java
index e2ded9988..59b444c3c 100644
--- a/tools/cooja/apps/mspsim/src/se/sics/cooja/mspmote/interfaces/Msp802154Radio.java
+++ b/tools/cooja/apps/mspsim/src/se/sics/cooja/mspmote/interfaces/Msp802154Radio.java
@@ -31,8 +31,10 @@
 package se.sics.cooja.mspmote.interfaces;
 
 import java.util.Collection;
+
 import org.apache.log4j.Logger;
 import org.jdom.Element;
+
 import se.sics.cooja.ClassDescription;
 import se.sics.cooja.Mote;
 import se.sics.cooja.RadioPacket;
@@ -42,6 +44,7 @@ import se.sics.cooja.interfaces.Position;
 import se.sics.cooja.interfaces.Radio;
 import se.sics.cooja.mspmote.MspMote;
 import se.sics.cooja.mspmote.MspMoteTimeEvent;
+import se.sics.mspsim.chip.CC2420;
 import se.sics.mspsim.chip.ChannelListener;
 import se.sics.mspsim.chip.RFListener;
 import se.sics.mspsim.chip.Radio802154;
@@ -207,8 +210,8 @@ public class Msp802154Radio extends Radio implements CustomDataRadio {
 
     lastIncomingPacket = packet;
     /* TODO Check isReceiverOn() instead? */
-    if (radio.isReadyToReceive()) {
-      logger.warn("Radio is turned off, dropping packet data");
+    if (!radio.isReadyToReceive()) {
+      logger.warn("Radio receiver not ready, dropping packet data");
       return;
     }
 
@@ -394,7 +397,16 @@ public class Msp802154Radio extends Radio implements CustomDataRadio {
   public void setConfigXML(Collection<Element> configXML, boolean visAvailable) {
   }
 
-  public boolean isReceiverOn() {
-      return radio.isReadyToReceive();
+  public boolean isRadioOn() {
+    if (radio.isReadyToReceive()) {
+      return true;
+    }
+    if (radio.getMode() == CC2420.MODE_POWER_OFF) {
+      return false;
+    }
+    if (radio.getMode() == CC2420.MODE_TXRX_OFF) {
+      return false;
+    }
+    return true;
   }
 }
diff --git a/tools/cooja/apps/mspsim/src/se/sics/cooja/mspmote/interfaces/TR1001Radio.java b/tools/cooja/apps/mspsim/src/se/sics/cooja/mspmote/interfaces/TR1001Radio.java
index d873e579b..cf08583f9 100644
--- a/tools/cooja/apps/mspsim/src/se/sics/cooja/mspmote/interfaces/TR1001Radio.java
+++ b/tools/cooja/apps/mspsim/src/se/sics/cooja/mspmote/interfaces/TR1001Radio.java
@@ -354,7 +354,7 @@ public class TR1001Radio extends Radio implements USARTListener, CustomDataRadio
     return mote;
   }
 
-  public boolean isReceiverOn() {
+  public boolean isRadioOn() {
     /* TODO Implement me */
     return true;
   }
diff --git a/tools/cooja/apps/powertracker/java/PowerTracker.java b/tools/cooja/apps/powertracker/java/PowerTracker.java
index 0601cb32e..f0758bcda 100644
--- a/tools/cooja/apps/powertracker/java/PowerTracker.java
+++ b/tools/cooja/apps/powertracker/java/PowerTracker.java
@@ -310,7 +310,7 @@ public class PowerTracker extends VisPlugin {
       this.mote = mote;
       this.radio = mote.getInterfaces().getRadio();
 
-      radioWasOn = radio.isReceiverOn();
+      radioWasOn = radio.isRadioOn();
       if (radio.isTransmitting()) {
         lastRadioState = RadioState.TRANSMITTING;
       } else if (radio.isReceiving()) {
@@ -350,7 +350,7 @@ public class PowerTracker extends VisPlugin {
       /* Await next radio event */
       if (radio.isTransmitting()) {
         lastRadioState = RadioState.TRANSMITTING;
-      } else if (!radio.isReceiverOn()) {
+      } else if (!radio.isRadioOn()) {
         lastRadioState = RadioState.IDLE;
       } else if (radio.isInterfered()) {
         lastRadioState = RadioState.INTERFERED;
@@ -359,7 +359,7 @@ public class PowerTracker extends VisPlugin {
       } else {
         lastRadioState = RadioState.IDLE;
       }
-      radioWasOn = radio.isReceiverOn();
+      radioWasOn = radio.isRadioOn();
       lastUpdateTime = now;
     }
 
diff --git a/tools/cooja/java/se/sics/cooja/contikimote/interfaces/ContikiRadio.java b/tools/cooja/java/se/sics/cooja/contikimote/interfaces/ContikiRadio.java
index b301c2114..0e941fa6f 100644
--- a/tools/cooja/java/se/sics/cooja/contikimote/interfaces/ContikiRadio.java
+++ b/tools/cooja/java/se/sics/cooja/contikimote/interfaces/ContikiRadio.java
@@ -164,7 +164,7 @@ public class ContikiRadio extends Radio implements ContikiMoteInterface, PolledA
   }
 
   /* General radio support */
-  public boolean isReceiverOn() {
+  public boolean isRadioOn() {
     return radioOn;
   }
 
diff --git a/tools/cooja/java/se/sics/cooja/emulatedmote/Radio802154.java b/tools/cooja/java/se/sics/cooja/emulatedmote/Radio802154.java
index 8fc187310..3dcb73ba7 100644
--- a/tools/cooja/java/se/sics/cooja/emulatedmote/Radio802154.java
+++ b/tools/cooja/java/se/sics/cooja/emulatedmote/Radio802154.java
@@ -181,7 +181,7 @@ public abstract class Radio802154 extends Radio implements CustomDataRadio {
 
     public abstract int getFrequency();
 
-    public abstract boolean isReceiverOn();
+    public abstract boolean isRadioOn();
 
     public abstract double getCurrentOutputPower();
     
diff --git a/tools/cooja/java/se/sics/cooja/interfaces/ApplicationRadio.java b/tools/cooja/java/se/sics/cooja/interfaces/ApplicationRadio.java
index d146bd6ff..87e23b08f 100644
--- a/tools/cooja/java/se/sics/cooja/interfaces/ApplicationRadio.java
+++ b/tools/cooja/java/se/sics/cooja/interfaces/ApplicationRadio.java
@@ -392,7 +392,7 @@ public class ApplicationRadio extends Radio implements NoiseSourceRadio, Directi
     this.setChanged();
     this.notifyObservers();
   }
-  public boolean isReceiverOn() {
+  public boolean isRadioOn() {
     return radioOn;
   }
 
diff --git a/tools/cooja/java/se/sics/cooja/interfaces/Radio.java b/tools/cooja/java/se/sics/cooja/interfaces/Radio.java
index 0800774b7..49dd82f4a 100644
--- a/tools/cooja/java/se/sics/cooja/interfaces/Radio.java
+++ b/tools/cooja/java/se/sics/cooja/interfaces/Radio.java
@@ -139,18 +139,18 @@ public abstract class Radio extends MoteInterface {
   public abstract boolean isInterfered();
 
   /**
-   * @return True if the simulated radio receiver is turned on
+   * @return True if the simulated radio transceiver is on
    */
-  public abstract boolean isReceiverOn();
+  public abstract boolean isRadioOn();
 
   /**
    * Interferes with any current reception. If this method is called, the packet
    * will be dropped. This method can be used to simulate radio interference
    * such as high background noise or radio packet collisions.
-   * 
-   * When the radio is no longer interfered, the {@link #signalReceptionEnd()} 
+   *
+   * When the radio is no longer interfered, the {@link #signalReceptionEnd()}
    * method must be called.
-   *  
+   *
    * @see #signalReceptionEnd()
    */
   public abstract void interfereAnyReception();
diff --git a/tools/cooja/java/se/sics/cooja/plugins/TimeLine.java b/tools/cooja/java/se/sics/cooja/plugins/TimeLine.java
index 255f99d9c..2f10d021e 100644
--- a/tools/cooja/java/se/sics/cooja/plugins/TimeLine.java
+++ b/tools/cooja/java/se/sics/cooja/plugins/TimeLine.java
@@ -1004,7 +1004,7 @@ public class TimeLine extends VisPlugin implements HasQuickHelp {
     final Radio moteRadio = mote.getInterfaces().getRadio();
     if (moteRadio != null) {
       RadioHWEvent startupHW = new RadioHWEvent(
-          simulation.getSimulationTime(), moteRadio.isReceiverOn());
+          simulation.getSimulationTime(), moteRadio.isRadioOn());
       if (radioChannels) {
       	startupHW.channel = moteRadio.getChannel();
       }
@@ -1024,7 +1024,7 @@ public class TimeLine extends VisPlugin implements HasQuickHelp {
       			lastChannel = nowChannel;
 
             RadioHWEvent ev = new RadioHWEvent(
-                simulation.getSimulationTime(), moteRadio.isReceiverOn());
+                simulation.getSimulationTime(), moteRadio.isRadioOn());
             if (radioChannels) {
             	ev.channel = moteRadio.getChannel();
             }
@@ -1044,7 +1044,7 @@ public class TimeLine extends VisPlugin implements HasQuickHelp {
         	if (moteRadio.getLastEvent() == RadioEvent.HW_ON ||
               moteRadio.getLastEvent() == RadioEvent.HW_OFF) {
             RadioHWEvent ev = new RadioHWEvent(
-                simulation.getSimulationTime(), moteRadio.isReceiverOn());
+                simulation.getSimulationTime(), moteRadio.isRadioOn());
             if (radioChannels) {
             	ev.channel = moteRadio.getChannel();
             }
@@ -1074,7 +1074,7 @@ public class TimeLine extends VisPlugin implements HasQuickHelp {
             if (moteRadio.isTransmitting()) {
               ev = new RadioRXTXEvent(
                   simulation.getSimulationTime(), RXTXRadioEvent.TRANSMITTING);
-            } else if (!moteRadio.isReceiverOn()) {
+            } else if (!moteRadio.isRadioOn()) {
               ev = new RadioRXTXEvent(
                   simulation.getSimulationTime(), RXTXRadioEvent.IDLE);
             } else if (moteRadio.isInterfered()) {
diff --git a/tools/cooja/java/se/sics/cooja/plugins/skins/TrafficVisualizerSkin.java b/tools/cooja/java/se/sics/cooja/plugins/skins/TrafficVisualizerSkin.java
index f51d81239..cde0aa039 100644
--- a/tools/cooja/java/se/sics/cooja/plugins/skins/TrafficVisualizerSkin.java
+++ b/tools/cooja/java/se/sics/cooja/plugins/skins/TrafficVisualizerSkin.java
@@ -192,7 +192,7 @@ public class TrafficVisualizerSkin implements VisualizerSkin {
       return null;
     }
 
-    if (!moteRadio.isReceiverOn()) {
+    if (!moteRadio.isRadioOn()) {
       return new Color[] { Color.GRAY };
     }
 
diff --git a/tools/cooja/java/se/sics/cooja/radiomediums/DirectedGraphMedium.java b/tools/cooja/java/se/sics/cooja/radiomediums/DirectedGraphMedium.java
index f6ba39c3a..78d48e50a 100644
--- a/tools/cooja/java/se/sics/cooja/radiomediums/DirectedGraphMedium.java
+++ b/tools/cooja/java/se/sics/cooja/radiomediums/DirectedGraphMedium.java
@@ -273,7 +273,7 @@ public class DirectedGraphMedium extends AbstractRadioMedium {
         continue;
       }
 
-      if (!dest.radio.isReceiverOn()) {
+      if (!dest.radio.isRadioOn()) {
         /* Fail: radio is off */
         /*logger.info(source + ": Fail, off");*/
         newConn.addInterfered(dest.radio);
diff --git a/tools/cooja/java/se/sics/cooja/radiomediums/UDGM.java b/tools/cooja/java/se/sics/cooja/radiomediums/UDGM.java
index c87fce3ca..82865c6a4 100644
--- a/tools/cooja/java/se/sics/cooja/radiomediums/UDGM.java
+++ b/tools/cooja/java/se/sics/cooja/radiomediums/UDGM.java
@@ -215,7 +215,7 @@ public class UDGM extends AbstractRadioMedium {
       if (distance <= moteTransmissionRange) {
         /* Within transmission range */
 
-        if (!recv.isReceiverOn()) {
+        if (!recv.isRadioOn()) {
           newConnection.addInterfered(recv);
           recv.interfereAnyReception();
         } else if (recv.isInterfered()) {