Telemetry radio configuration

Hello, good night, how are you?
I apologize if I’m on the wrong topic, but I really need help.
I have a radio model RFD 900X-US, and I am having some problems in configuring it, either via Ardupilot, CMD, or the manufacturer’s own software, what happens is that the radio stores only half of the information that I record.
The radio does not store the following options:

  • Frequency (minimum and maximum)
  • “#” of Channels
  • ECC (Selection box)
    and Max Window.

Does anyone know what may be happening? These quoted values ​​only reach a limit, and even if I try to save the configuration on top of them, the radio does not save, a failure message appears.