A separating apparatus includes a sucking plate for sticking to a support plate by suction. The analog FM receiver includes a down-converter, a calibration circuit that estimates IQ mismatch values, and a compensation circuit that uses the estimated mismatch values to reduce the effects of IQ mismatch. The server-control element generates event reports in response to status data received from the server system, each event report containing status data indicative of an operational characteristic of the server system. The secure emergency access includes generating an encrypted emergency unit-specific password for a specific network device using a unique serial number for the specific network device and a global password used for a type of network device that includes the specific network device.