Serial to old reciever. Problem with the serial comunication

I tried

#include <SoftwareSerial.h>
SoftwareSerial mySerial(10, 11); //pin10 Rx, pin11 Tx 

void setup() {
  // put your setup code here, to run once:
Serial.begin(9600);
mySerial.begin(9600); 
}

void loop()
{
   if (mySerial.available()>0)
   {
      if(mySerial.read() == 0x11)   //Pioneer is ready to accept data
      {
         mySerial.println("44VL");    //data going to Pioneer
         delay(5000);
      }
   }
}

With the MAX232 connected to pin 10 and 11 (Arduino Uno)
However the Pioneer did not respond.
Is ther something wrong in the code?
For debugging can I get the input from the software serial to be outputed on the usb serial?