I’m trying to research relevant steps to get into a module test mode for EM7455 for LTE module integration (propably similar to other modules of that series), because of a CE certification procedure. In discussion with our measurement laboratory service partner they require that the module needs to enter a continuous transmission testing mode to reach EMC requirements.
The AT commands documentation describes a test mode section with options like:
- enter a factory test mode (AT!DAFTMACT)
- select a frequency band (AT!DASBAND)
- select a channel (AT!DASCHAN)
All these commands works fine after entering the undocumented password “A710”.
My question is: What is the best practice or correct guideline to configure the module to operate in a continuous transmission mode for CE testing? Is there any verification for me to proof the module acts in transmission mode while not connected to a carrier?