Am I ordering the right model? This model comes in 2 frequency versions UHF and VHF. If you have existing radios the frequency must match. You can tell what version you have by removing the battery from your radio and look inside on the radio unit itself. On the metallic surface inside the back of your BPR40 you will find a label with a "Model:" number. If the model number on the back of your radio is AAH84KDS8AA1AN then you have picked the right radio. If the model number says AAH84RCS8AA1AN then you need the UHF version of this radio which is also sold on Amazon.