code: public Predictor system(double pwr, double xnoise, double amind, double xlufp, double rsn, double pmp, double dmpx)
      {
          input.add(new CommandLine<>(SYSTEM, 5, pwr, xnoise, amind, xlufp, rsn, pmp, dmpx));
          return this;
      }
docs: The SYSTEM command line includes parameters necessary to define the
  system configuration.
  
  @param pwr PWR indicates the transmitter power in kilowatts.
  @param xnoise XNOISE indicates the expected man-made noise level at the
  receiver in dBW (decibels below lW) in a 1 Hz bandwidth at 3 MHz.
  @param amind AMIND indicates the minimum takeoff angle in degrees.
  @param xlufp XLUFP indicates the required circuit reliability, which is
  an estimate of the percentage of days within the month that the signal
  quality will be acceptable, and should be specified for calculation of
  the LUF or time availability for service probability. (NOTE: XLUFP is
  expressed as a percentage.)
  @param rsn RSN indicates the required signal-to-noise and is the ratio of
  the hourly median signal power in the occupied bandwidth relative to the
  hourly median noise in a 1 Hz bandwidth, which is necessary to provide
  the type and quality of service required (expressed in decibels).
  @param pmp PMP indicates the maximum difference in delayed signal power
  in decibels between sky-wave modes to permit satisfactory system
  performance in the presence of multiple signals. If PMP is blank or zero,
  multi-path is not considered.
  @param dmpx DMPX indicates the maximum difference in delay time in
  milliseconds between sky-wave propagation modes to permit satisfactory
  system performance in the presence of multiple signals.
  @return