RFM12 funktionert mit NANO aber nicht mir UNO

#include <JeeLib.h>  //from jeelabs.org

#define myNodeID 25          //node ID of tx (range 0-30)

#define network     210      //network group (can be in the range 1-250).

#define RF_freq RF12_868MHZ     //Freq of RF12B can be RF12_433MHZ, RF12_868MHZ or RF12_915MHZ. Match freq to module

typedef struct { int power1, power2, power3, battery; } PayloadTX;      // create structure - a neat way of packaging data for RF comms

PayloadTX emontx;  

                                            //emonTx V3

void setup() {

  rf12_initialize(myNodeID,RF_freq,network);   //Initialize RFM12 with settings defined above  

Serial.begin(9600);

Serial.println("RFM12B Transmitter - Simple demo");

 Serial.print("Node: "); 

 Serial.print(myNodeID); 

 Serial.print(" Freq: "); 

 if (RF_freq == RF12_433MHZ) Serial.print("433Mhz");

 if (RF_freq == RF12_868MHZ) Serial.print("868Mhz");

 if (RF_freq == RF12_915MHZ) Serial.print("915Mhz"); 

 Serial.print(" Network: "); 

 Serial.println(network);

}

void loop() {

  emontx.power1=emontx.power1+1;

  emontx.power2=emontx.power2+2;

  emontx.power3=emontx.power3+3;

  emontx.battery=emontx.battery+4;

    rf12_sendNow(0, &emontx, sizeof emontx);                    

    rf12_sendWait(2);

  Serial.print("power1: "); Serial.println(emontx.power1); 

  Serial.print("power2: "); Serial.println(emontx.power2); 

  Serial.print("power3: "); Serial.println(emontx.power3); 

  Serial.print("battery: "); Serial.println(emontx.battery); 

  Serial.println("  "); 

  delay(2000);

}