The Promax OP-00X-FM Advanced FM Measurements Internal Option is designed for use with the PROWATCH Neo 2 Remote Monitoring System. All parameters, such as FM deviation sampling and refresh rates, are set according to ITU-R SM.1268-2 and ITU-R SM.1268-4. Both normal and cumulative histograms are available. Spectrum analysis of the MPX can have a variety of applications, namely the detection of interfering signals that cannot be seen otherwise.