You have to find a crystal that is compatible with the receiver, and it must match the channel in the radio. It is illegal for you to change the radio channel, though it can be done by an authorized service center. The receiver will work with any channel that is approved for air use. Again, make sure the crystal is compatible with the receiver; it doesn't matter if it is not the same brand as the radio, and it needs to be on the same channel as the radio.