The proprietary %XMAGPIO command writes the MAGPIO configuration to device RAM. v2.0.x
The MAGPIO pins can be used, for example, to control an external antenna tuner, or any other General-Purpose Input/Output (GPIO)-controlled device, whose state depends on modem's RF frequency. The %XMAGPIO command must be sent before any modem activity occurs. Based on the given configuration, the modem applies the MAGPIO state corresponding to the RF frequency range automatically during runtime.