Make Communication between Zigbee RS232 RFM75 and arduino - reg.

I am new to arduino and i dnt knw is this correct to post this here.
I am using arduino and Zigbee RS232 RFM75 board for transfering data wirelessly.
I need to transfer data from one arduino to another wirelessly using Zigbee RS232 RFM75 (RFM75 is the one which works similarly to the principle of CC2500).
I used the code below but it’s not working.
Please help me to transfer data from one arduino to another using Zigbee RS232 RFM75 wirelessly.
I have attached Zigbee RS232 RFM75 board’s picture.
Thanks in advance.

 The circuit:
 * RX is digital pin 10 (connect to TX of other device)
 * TX is digital pin 11 (connect to RX of other device)
#include <SoftwareSerial.h>  

SoftwareSerial mySerial(10, 11); // RX, TX

void setup() 
  // Open serial communications and wait for port to open:
  while (!Serial) 
    ; // wait for serial port to connect. Needed for native USB port only

  Serial.println("Goodnight moon!");

  // set the data rate for the SoftwareSerial port
  mySerial.println("Hello, world?");

void loop()
{ // run over and over
  if(mySerial.available()                // if Data available in RFM 
    Serial.write(;    // then transmits to PC
  if (Serial.available()) {                 // if Data available in PC
    mySerial.write(;   //then transmits to RFM

For starters, that code does not even compile. You are missing a closing ‘)’ on your first if() inside loop()

void loop()
{ // run over and over
  if(mySerial.available()   <----- need a closing ')'

Oops sorry, i'd forget to add it here. I added the paranthesis in the code. The code was compiled successfully but the data was not transmitting between two arduinos.
Kindly help me.

My connections are
Zigbee RS232 RFM75 Arduino
Rx 10
TX 11
5V 5V
My code is compiling but i am unable to transfer data.

If you look at the comments of your code, you will see that the arduino pin 10 is the Rx pin from the Arduino side and needs to be connected to the Tx pin of the other device. It appears you have wired it Rx -> Rx and Tx->Tx which is not correct.

Thanks a lot. It's working. I connect Tx-Rx combination as you mentioned above and its working.
Is there any predefined function to find RSSI, LQI or CCA any of these stuffs?