code: def retranslateUi(self, QSpectrumAnalyzerSettings):
      _translate = QtCore.QCoreApplication.translate
      QSpectrumAnalyzerSettings.setWindowTitle(
          _translate(
              "QSpectrumAnalyzerSettings",
              "Settings - QSpectrumAnalyzer",
          )
      )
      self.label_3.setText(
          _translate("QSpectrumAnalyzerSettings", "&Backend:")
      )
      self.backendComboBox.setItemText(
          0, _translate("QSpectrumAnalyzerSettings", "soapy_power")
      )
      self.backendComboBox.setItemText(
          1, _translate("QSpectrumAnalyzerSettings", "rx_power")
      )
      self.backendComboBox.setItemText(
          2, _translate("QSpectrumAnalyzerSettings", "rtl_power_fftw")
      )
      self.backendComboBox.setItemText(
          3, _translate("QSpectrumAnalyzerSettings", "rtl_power")
      )
      self.backendComboBox.setItemText(
          4, _translate("QSpectrumAnalyzerSettings", "hackrf_sweep")
      )
      self.label.setText(
          _translate("QSpectrumAnalyzerSettings", "E&xecutable:")
      )
      self.executableEdit.setText(
          _translate("QSpectrumAnalyzerSettings", "soapy_power")
      )
      self.executableButton.setText(
          _translate("QSpectrumAnalyzerSettings", "...")
      )
      self.label_5.setText(
          _translate("QSpectrumAnalyzerSettings", "&Device:")
      )
      self.label_4.setText(
          _translate("QSpectrumAnalyzerSettings", "Sa&mple rate:")
      )
      self.label_2.setText(
          _translate(
              "QSpectrumAnalyzerSettings", "&Waterfall history size:"
          )
      )
      self.label_7.setText(
          _translate("QSpectrumAnalyzerSettings", "Bandwidt&h:")
      )
      self.label_8.setToolTip(
          _translate(
              "QSpectrumAnalyzerSettings",
              "Negative frequency for upconverters, positive frequency for downconverters.",
          )
      )
      self.label_8.setText(
          _translate("QSpectrumAnalyzerSettings", "&LNB LO:")
      )
      self.label_6.setText(
          _translate(
              "QSpectrumAnalyzerSettings", "Add&itional parameters:"
          )
      )
      self.paramsHelpButton.setText(
          _translate("QSpectrumAnalyzerSettings", " ? ")
      )
      self.deviceHelpButton.setText(
          _translate("QSpectrumAnalyzerSettings", " ? ")
      )
      self.sampleRateSpinBox.setSuffix(
          _translate("QSpectrumAnalyzerSettings", " MHz")
      )
      self.bandwidthSpinBox.setSuffix(
          _translate("QSpectrumAnalyzerSettings", " MHz")
      )
      self.lnbSpinBox.setToolTip(
          _translate(
              "QSpectrumAnalyzerSettings",
              "Negative frequency for upconverters, positive frequency for downconverters.",
          )
      )
      self.lnbSpinBox.setSuffix(
          _translate("QSpectrumAnalyzerSettings", " MHz")
      )
  
imports: from Qt import QtCore, QtGui, QtWidgets
label_desc: Use image node_id 2 for calling the Ui_QSpectrumAnalyzerSettings obj's underlying member method code with example usage: obj.retranslateUi(QSpectrumAnalyzerSettings) without return types