The beacon RX receives a satellite beacon signal which is down-converted to L-Band by a PLL stabilized Low Noise Converter (LNC) at its L-band interface input. The beacon RX does not demodulate any satellite because the satellite signals are sometimes CW signals but also very often modulated in FM or BPSK form. Due to this fact the best implementation is a non-coherent receiver which measures the input level in a user selectable defined bandwidth and provides this as a dB-linear and calibrated analogue output voltage and digital information.
The level output is provided by three different and parallel available interface types: a HTTP Web Interface via an internal Web Server, a RS232 interface or the analog voltage output. The sat-nms beacon receiver is controlled remotely by a monitoring and control application through the TCP/IP interface. All communication with the power sensor is made with HTTP get requests. The beacon receiver implements the Hypertext Transfer Protocol (HTTP, RFC-1945) both, for the user interface and for the M&C interface.