diff --git a/rfm02.cpp b/rfm02.cpp
index eaa46e2..989f0f6 100644
--- a/rfm02.cpp
+++ b/rfm02.cpp
@@ -112,3 +112,44 @@ uint8_t i=8;
       }
 }
 
+
+void RFM02::sendMessage(uint8_t *txData, uint8_t size)
+{
+
+   //digitalWrite(_pinChipSelect, LOW); // CS LOW
+   writeRegister(0xC0,0x39); // enable TX
+   //digitalWrite(_pinChipSelect, HIGH); // CS HIGH
+   //delay(1000);
+   RFM02_TX_DataByte_FSK(0xAA); // preamble
+   RFM02_TX_DataByte_FSK(0xAA); // preamble
+   RFM02_TX_DataByte_FSK(0xAA); // preamble
+   
+   RFM02_TX_DataByte_FSK(0x2D); // sync word high
+   RFM02_TX_DataByte_FSK(0xD4); // sync word low
+   
+   for(int myLoop=0;myLoop<MESSAGELENGTH;myLoop++)
+ {
+   RFM02_TX_DataByte_FSK(txData[myLoop]); // sync word lowtxData[myLoop] = myLoop;
+ }
+   
+   /*
+   RFM02_TX_DataByte_FSK('H'); // data
+   RFM02_TX_DataByte_FSK('E'); // data
+   RFM02_TX_DataByte_FSK('L'); // data
+   RFM02_TX_DataByte_FSK('L'); // data
+   RFM02_TX_DataByte_FSK('O'); // data
+   
+   RFM02_TX_DataByte_FSK(1); // data
+   RFM02_TX_DataByte_FSK(2); // data
+   RFM02_TX_DataByte_FSK(3); // data
+   RFM02_TX_DataByte_FSK(4); // data
+   
+   RFM02_TX_DataByte_FSK(0xA5); // ende zeichen
+   */
+   delay(1); // delay until carrier turn off 
+   
+   //digitalWrite(_pinChipSelect, LOW); // CS LOW
+   writeRegister(0xC0,0x01); // disable TX
+   //digitalWrite(_pinChipSelect, HIGH); // CS HIGH
+
+}
diff --git a/rfm02.h b/rfm02.h
index 5699e8e..1147c9e 100644
--- a/rfm02.h
+++ b/rfm02.h
@@ -1,4 +1,7 @@
 
+#ifndef MESSAGELENGTH
+#define MESSAGELENGTH	10// expect 10 bytes to receive
+#endif
 
 #ifndef RFM02_h
 #define RFM02_h
@@ -15,38 +18,15 @@ class RFM02 {
 public:
 	RFM02();
 	RFM02(uint8_t pinChipSelect, uint8_t pinFSK, uint8_t pinNIRQ);
-	//CC2500(uint8_t deviceAddress);
-	//CC2500(uint8_t deviceAddress, uint8_t channel);
 	void begin();
-	//void setDeviceAddress(uint8_t deviceAddress);
-	//void setChannel(uint8_t channel);
-	//uint8_t getChipVersion(); 
-	//uint8_t getStatusByte(); 
+	void sendMessage(uint8_t *txData, uint8_t size);
 	
-
-
-
-//private:
+private:
 	void writeRegister(uint8_t HighByte, uint8_t LowByte);
 	void configureDeviceSettings();
 	void RFM02_TX_DataByte_FSK(uint8_t DataByte);
 	
-	/*
-	uint8_t _channel;
-	uint8_t _deviceAddress;
-	uint8_t _gdo0;
-
-	void writeRegister(uint8_t addr, uint8_t data);
-	void writeRegisterBurst(uint8_t saddr, uint8_t *data, uint8_t size);
-	uint8_t readRegister(uint8_t addr);
-	void readRegisterBurst(uint8_t saddr, uint8_t *data, uint8_t size);
-	uint8_t readStatusRegister(uint8_t addr);
-	void sendTxBuffer(uint8_t *txBuffer, uint8_t size);
-	int8_t receiveRxBuffer(uint8_t *rxBuffer, uint8_t size);
-	void execStrobeCommand(uint8_t command);
-	void resetDevice();
 	
-*/
 };
 
 #endif