public SpectrumAreaControl(SpctrumMonitorViewModel mainViewMode)
        {
            InitializeComponent();

            mainViewMode.SpectrumAreaControl = this;

            mViewModel  = mainViewMode.SpectrumAreaViewModel;
            DataContext = mViewModel;

            TopLevelLabel.ViewModel     = mViewModel;
            BottomLevelLabel.ViewModel  = mViewModel;
            AverageStateLabel.ViewModel = mViewModel;
            StartFreqLabel.ViewModel    = mViewModel;
            StopFreqLabel.ViewModel     = mViewModel;
            RBWLabel.ViewModel          = mViewModel;
        }