Menu Options - About Menu Last updated Save as PDF Share Share Tweet Share This page contains information about the available settings in the About Menu on LabSat 4 (P) units. This option provides information about the LabSat 4 unit and the firmware on it. Use the arrow buttons to navigate through the following data. Serial number Product Code Recording Capability Firmware Version FPGA GNSS Engine IP Address MAC Address Battery Level TCXO Calibration Level OCXO Callibration Level PCB information Press the OK button to return to the Main menu.