NO. IT is illegl to change crystals to different frequency'75 mhz to 72mhz yourself. You will need to send the radio back to the manufacture to be re-tunned. The only radios that I know you can do it yourself is on the Jr computer radios with a removable module and you can send in the reciever if you need more than 3 channels or you don't. You can use any 3 channel S pcm or Z pcm only.