       //propagate to parent 
       byte header = B00000000;
       //fill header using radioUtils      
+      ru.resetAck(&header);
+      ru.setID(&header, PARENTID);      
       rf12_sendNow(header, (const void*)rf12_data, rf12_len);
     }
   }

    msgCounter++;
    //send still alive msg
    byte header;
    //fill header using radioUtils
    //void* data; 
    rf12_sendNow(header, (const void*) &msgCounter, sizeof(counter));
    counter = 0;
  }


int counter = 0; //
int msgCounter = 0; 

radioUtils ru = radioUtils();

void setup () {
  Serial.begin(57600);
