   
   while (digitalRead(SWITCH_PIN));
   
-  // let the AU ot of reset
+  // now we let the AU ot of reset
   digitalWrite(RESET_PIN, HIGH);
   delay(5); // wait for device to come up
   

  radio.setSQOn();
  //radio.setSQOff();

  Serial.println("changing frequency");
  freq = 420000;
  radio.frequency(freq);
  Serial.print("new frequency: ");
  Serial.println(radio.getFrequency());
  
  // set RX volume to minimum to reduce false positives on DTMF rx
  radio.setVolume1(6);

/* Hamshield
 * Example: DTMF
 * This is a simple example to demonstrate how to use DTMF.
 *
 * Connect the HamShield to your Arduino. Screw the antenna 
 * into the HamShield RF jack. 
 * Connect the Arduino to wall power and then to your computer
 * via USB. After uploading this program to your Arduino, open
 * the Serial Monitor. Press the switch on the HamShield to 
 * begin setup. After setup is complete, type in a DTMF value
 * (0-9, A, B, C, D, *, #) and hit enter. The corresponding
 * DTMF tones will be transmitted. The sketch will also print
