diff --git a/src/ATC/trafficcontrol.cxx b/src/ATC/trafficcontrol.cxx
index aefc39b42..3e27f9190 100644
--- a/src/ATC/trafficcontrol.cxx
+++ b/src/ATC/trafficcontrol.cxx
@@ -743,7 +743,27 @@ void FGATCController::transmit(FGTrafficRecord * rec, FGAirportDynamics *parent,
                 || (onBoardRadioFreqI1 == stationFreq)) {
             if (rec->allowTransmissions()) {
             	
-                fgSetString("/sim/messages/atc", text.c_str());
+            	if( fgGetBool( "/instrumentation/use-itm-attenuation", false ) ) {
+            		FGRadio* radio = new FGRadio();
+            		SGGeod sender_pos;
+            		double sender_alt_ft, sender_alt;
+            		if(ground_to_air) {
+			              sender_alt_ft = parent->getElevation();
+			              sender_alt = sender_alt_ft * SG_FEET_TO_METER;
+			              sender_pos= SGGeod::fromDegM( parent->getLongitude(),
+		                      parent->getLatitude(), sender_alt );
+			        }
+			        else {
+			              sender_alt_ft = rec->getAltitude();
+			              sender_alt = sender_alt_ft * SG_FEET_TO_METER;
+			              sender_pos= SGGeod::fromDegM( rec->getLongitude(),
+			                     rec->getLatitude(), sender_alt );
+			      	}
+            		radio->receiveText(sender_pos, stationFreq, text, ground_to_air);
+            	}
+            	else {
+            		fgSetString("/sim/messages/atc", text.c_str());
+            	}
             }
         }
     } else {
diff --git a/src/ATC/trafficcontrol.hxx b/src/ATC/trafficcontrol.hxx
index 90c83edb4..7c17665f9 100644
--- a/src/ATC/trafficcontrol.hxx
+++ b/src/ATC/trafficcontrol.hxx
@@ -453,7 +453,7 @@ public:
     void   setDt(double dt) {
         dt_count = dt;
     };
-    void transmit(FGTrafficRecord *rec, AtcMsgId msgId, AtcMsgDir msgDir, bool audible);
+    void transmit(FGTrafficRecord *rec, FGAirportDynamics *parent, AtcMsgId msgId, AtcMsgDir msgDir, bool audible);
     string getGateName(FGAIAircraft *aircraft);
     virtual void render(bool) = 0;
     virtual string getName()  = 0;
diff --git a/src/Radio/radio.cxx b/src/Radio/radio.cxx
index fdd8dd416..5ce656f6c 100644
--- a/src/Radio/radio.cxx
+++ b/src/Radio/radio.cxx
@@ -54,7 +54,7 @@ FGRadio::~FGRadio()
 }
 
 
-double FGCommRadio::getFrequency(int radio) {
+double FGRadio::getFrequency(int radio) {
 	double freq = 118.0;
 	switch (radio) {
 		case 1: