diff --git a/plugins/channelrx/demoddsc/dscdemodgui.cpp b/plugins/channelrx/demoddsc/dscdemodgui.cpp
index 52ea530509..2fd2c25a5b 100644
--- a/plugins/channelrx/demoddsc/dscdemodgui.cpp
+++ b/plugins/channelrx/demoddsc/dscdemodgui.cpp
@@ -568,7 +568,7 @@ DSCDemodGUI::DSCDemodGUI(PluginAPI* pluginAPI, DeviceUISet *deviceUISet, Baseban
     ui->deltaFrequency->setValueRange(false, 7, -9999999, 9999999);
     ui->channelPowerMeter->setColorTheme(LevelMeterSignalDB::ColorGreenAndBlue);
 
-    ui->messages->setItemDelegateForColumn(MESSAGE_COL_RSSI, new DecimalDelegate(1));
+    ui->messages->setItemDelegateForColumn(MESSAGE_COL_RSSI, new DecimalDelegate(1, ui->messages));
 
     m_scopeVis = m_dscDemod->getScopeSink();
     m_scopeVis->setGLScope(ui->glScope);
diff --git a/plugins/channelrx/demodnavtex/navtexdemodgui.cpp b/plugins/channelrx/demodnavtex/navtexdemodgui.cpp
index 2c71eb4679..dbf3d71272 100644
--- a/plugins/channelrx/demodnavtex/navtexdemodgui.cpp
+++ b/plugins/channelrx/demodnavtex/navtexdemodgui.cpp
@@ -525,8 +525,8 @@ NavtexDemodGUI::NavtexDemodGUI(PluginAPI* pluginAPI, DeviceUISet *deviceUISet, B
     ui->deltaFrequency->setValueRange(false, 7, -9999999, 9999999);
     ui->channelPowerMeter->setColorTheme(LevelMeterSignalDB::ColorGreenAndBlue);
 
-    ui->messages->setItemDelegateForColumn(MESSAGE_COL_ERROR_PERCENT, new DecimalDelegate(1));
-    ui->messages->setItemDelegateForColumn(MESSAGE_COL_RSSI, new DecimalDelegate(1));
+    ui->messages->setItemDelegateForColumn(MESSAGE_COL_ERROR_PERCENT, new DecimalDelegate(1, ui->messages));
+    ui->messages->setItemDelegateForColumn(MESSAGE_COL_RSSI, new DecimalDelegate(1, ui->messages));
 
     m_scopeVis = m_navtexDemod->getScopeSink();
     m_scopeVis->setGLScope(ui->glScope);
diff --git a/plugins/channelrx/demodradiosonde/radiosondedemodgui.cpp b/plugins/channelrx/demodradiosonde/radiosondedemodgui.cpp
index 84d6f48398..178f50213c 100644
--- a/plugins/channelrx/demodradiosonde/radiosondedemodgui.cpp
+++ b/plugins/channelrx/demodradiosonde/radiosondedemodgui.cpp
@@ -647,16 +647,16 @@ RadiosondeDemodGUI::RadiosondeDemodGUI(PluginAPI* pluginAPI, DeviceUISet *device
     TableTapAndHold *tableTapAndHold = new TableTapAndHold(ui->frames);
     connect(tableTapAndHold, &TableTapAndHold::tapAndHold, this, &RadiosondeDemodGUI::customContextMenuRequested);
 
-    ui->frames->setItemDelegateForColumn(FRAME_COL_DATE, new DateTimeDelegate("yyyy/MM/dd"));
-    ui->frames->setItemDelegateForColumn(FRAME_COL_TIME, new TimeDelegate());
-    ui->frames->setItemDelegateForColumn(FRAME_COL_LATITUDE, new DecimalDelegate(5));
-    ui->frames->setItemDelegateForColumn(FRAME_COL_LONGITUDE, new DecimalDelegate(5));
-    ui->frames->setItemDelegateForColumn(FRAME_COL_ALTITUDE, new DecimalDelegate(1));
-    ui->frames->setItemDelegateForColumn(FRAME_COL_SPEED, new DecimalDelegate(1));
-    ui->frames->setItemDelegateForColumn(FRAME_COL_VERTICAL_RATE, new DecimalDelegate(1));
-    ui->frames->setItemDelegateForColumn(FRAME_COL_HEADING, new DecimalDelegate(1));
-    ui->frames->setItemDelegateForColumn(FRAME_COL_GPS_TIME, new DateTimeDelegate("yyyy/MM/dd hh:mm:ss"));
-    ui->frames->setItemDelegateForColumn(FRAME_COL_FREQUENCY, new DecimalDelegate(3));
+    ui->frames->setItemDelegateForColumn(FRAME_COL_DATE, new DateTimeDelegate("yyyy/MM/dd", ui->frames));
+    ui->frames->setItemDelegateForColumn(FRAME_COL_TIME, new TimeDelegate("hh:mm:ss", ui->frames));
+    ui->frames->setItemDelegateForColumn(FRAME_COL_LATITUDE, new DecimalDelegate(5, ui->frames));
+    ui->frames->setItemDelegateForColumn(FRAME_COL_LONGITUDE, new DecimalDelegate(5, ui->frames));
+    ui->frames->setItemDelegateForColumn(FRAME_COL_ALTITUDE, new DecimalDelegate(1, ui->frames));
+    ui->frames->setItemDelegateForColumn(FRAME_COL_SPEED, new DecimalDelegate(1, ui->frames));
+    ui->frames->setItemDelegateForColumn(FRAME_COL_VERTICAL_RATE, new DecimalDelegate(1, ui->frames));
+    ui->frames->setItemDelegateForColumn(FRAME_COL_HEADING, new DecimalDelegate(1, ui->frames));
+    ui->frames->setItemDelegateForColumn(FRAME_COL_GPS_TIME, new DateTimeDelegate("yyyy/MM/dd hh:mm:ss", ui->frames));
+    ui->frames->setItemDelegateForColumn(FRAME_COL_FREQUENCY, new DecimalDelegate(3, ui->frames));
 
     ui->scopeContainer->setVisible(false);
 
diff --git a/plugins/channelrx/freqscanner/freqscannergui.cpp b/plugins/channelrx/freqscanner/freqscannergui.cpp
index 2e725c598e..9660542c2d 100644
--- a/plugins/channelrx/freqscanner/freqscannergui.cpp
+++ b/plugins/channelrx/freqscanner/freqscannergui.cpp
@@ -496,11 +496,11 @@ FreqScannerGUI::FreqScannerGUI(PluginAPI* pluginAPI, DeviceUISet *deviceUISet, B
     applyAllSettings();
     m_resizer.enableChildMouseTracking();
 
-    ui->table->setItemDelegateForColumn(COL_FREQUENCY, new FrequencyDelegate("Auto", 3));
-    ui->table->setItemDelegateForColumn(COL_POWER, new DecimalDelegate(1));
-    ui->table->setItemDelegateForColumn(COL_CHANNEL_BW, new Int64Delegate(0, 10000000));
-    ui->table->setItemDelegateForColumn(COL_TH, new DecimalDelegate(1, -120.0, 0.0));
-    ui->table->setItemDelegateForColumn(COL_SQ, new DecimalDelegate(1, -120.0, 0.0));
+    ui->table->setItemDelegateForColumn(COL_FREQUENCY, new FrequencyDelegate("Auto", 3, true, ui->table));
+    ui->table->setItemDelegateForColumn(COL_POWER, new DecimalDelegate(1, ui->table));
+    ui->table->setItemDelegateForColumn(COL_CHANNEL_BW, new Int64Delegate(0, 10000000, ui->table));
+    ui->table->setItemDelegateForColumn(COL_TH, new DecimalDelegate(1, -120.0, 0.0, ui->table));
+    ui->table->setItemDelegateForColumn(COL_SQ, new DecimalDelegate(1, -120.0, 0.0, ui->table));
 
     connect(m_deviceUISet->m_spectrum->getSpectrumView(), &GLSpectrumView::updateAnnotations, this, &FreqScannerGUI::updateAnnotations);
 }
diff --git a/plugins/channelrx/noisefigure/noisefiguregui.cpp b/plugins/channelrx/noisefigure/noisefiguregui.cpp
index 9c0ba3f1dc..b371b3061e 100644
--- a/plugins/channelrx/noisefigure/noisefiguregui.cpp
+++ b/plugins/channelrx/noisefigure/noisefiguregui.cpp
@@ -657,11 +657,11 @@ NoiseFigureGUI::NoiseFigureGUI(PluginAPI* pluginAPI, DeviceUISet *deviceUISet, B
     ui->results->setContextMenuPolicy(Qt::CustomContextMenu);
     connect(ui->results, SIGNAL(customContextMenuRequested(QPoint)), SLOT(customContextMenuRequested(QPoint)));
 
-    ui->results->setItemDelegateForColumn(RESULTS_COL_NF, new DecimalDelegate(2));
-    ui->results->setItemDelegateForColumn(RESULTS_COL_TEMP, new DecimalDelegate(0));
-    ui->results->setItemDelegateForColumn(RESULTS_COL_Y, new DecimalDelegate(2));
-    ui->results->setItemDelegateForColumn(RESULTS_COL_ENR, new DecimalDelegate(2));
-    ui->results->setItemDelegateForColumn(RESULTS_COL_FLOOR, new DecimalDelegate(1));
+    ui->results->setItemDelegateForColumn(RESULTS_COL_NF, new DecimalDelegate(2, ui->results));
+    ui->results->setItemDelegateForColumn(RESULTS_COL_TEMP, new DecimalDelegate(0, ui->results));
+    ui->results->setItemDelegateForColumn(RESULTS_COL_Y, new DecimalDelegate(2, ui->results));
+    ui->results->setItemDelegateForColumn(RESULTS_COL_ENR, new DecimalDelegate(2, ui->results));
+    ui->results->setItemDelegateForColumn(RESULTS_COL_FLOOR, new DecimalDelegate(1, ui->results));
 
     ui->startStop->setStyleSheet(QString("QToolButton{ background-color: blue; } QToolButton:checked{ background-color: green; }"));
 
diff --git a/plugins/channelrx/radioastronomy/radioastronomygui.cpp b/plugins/channelrx/radioastronomy/radioastronomygui.cpp
index 370da38cc8..d26eddbd46 100644
--- a/plugins/channelrx/radioastronomy/radioastronomygui.cpp
+++ b/plugins/channelrx/radioastronomy/radioastronomygui.cpp
@@ -66,6 +66,9 @@
 class TimeDeltaDelegate : public QStyledItemDelegate {
 
 public:
+    TimeDeltaDelegate(QObject *parent = nullptr) :
+        QStyledItemDelegate(parent) {}
+
     virtual QString displayText(const QVariant &value, const QLocale &locale) const override
     {
         (void) locale;
@@ -97,6 +100,9 @@ class TimeDeltaDelegate : public QStyledItemDelegate {
 class HMSDelegate : public QStyledItemDelegate {
 
 public:
+    HMSDelegate(QObject *parent = nullptr) :
+        QStyledItemDelegate(parent) {}
+
     virtual QString displayText(const QVariant &value, const QLocale &locale) const override
     {
         (void) locale;
@@ -109,6 +115,9 @@ class HMSDelegate : public QStyledItemDelegate {
 class DMSDelegate : public QStyledItemDelegate {
 
 public:
+    DMSDelegate(QObject *parent = nullptr) :
+        QStyledItemDelegate(parent) {}
+
     virtual QString displayText(const QVariant &value, const QLocale &locale) const override
     {
         (void) locale;
@@ -2123,42 +2132,42 @@ RadioAstronomyGUI::RadioAstronomyGUI(PluginAPI* pluginAPI, DeviceUISet *deviceUI
     ui->powerTable->setContextMenuPolicy(Qt::CustomContextMenu);
     connect(ui->powerTable, SIGNAL(customContextMenuRequested(QPoint)), SLOT(customContextMenuRequested(QPoint)));
 
-    ui->powerTable->setItemDelegateForColumn(POWER_COL_TIME, new TimeDelegate());
-    //ui->powerTable->setItemDelegateForColumn(POWER_COL_POWER, new DecimalDelegate(6));
-    ui->powerTable->setItemDelegateForColumn(POWER_COL_POWER_DB, new DecimalDelegate(1));
-    ui->powerTable->setItemDelegateForColumn(POWER_COL_POWER_DBM, new DecimalDelegate(1));
-    ui->powerTable->setItemDelegateForColumn(POWER_COL_TSYS, new DecimalDelegate(0));
-    ui->powerTable->setItemDelegateForColumn(POWER_COL_TSYS0, new DecimalDelegate(0));
-    ui->powerTable->setItemDelegateForColumn(POWER_COL_TSOURCE, new DecimalDelegate(0));
-    ui->powerTable->setItemDelegateForColumn(POWER_COL_TB, new DecimalDelegate(0));
-    ui->powerTable->setItemDelegateForColumn(POWER_COL_TSKY, new DecimalDelegate(0));
-    ui->powerTable->setItemDelegateForColumn(POWER_COL_FLUX, new DecimalDelegate(2));
-    ui->powerTable->setItemDelegateForColumn(POWER_COL_SIGMA_T, new DecimalDelegate(2));
-    ui->powerTable->setItemDelegateForColumn(POWER_COL_SIGMA_S, new DecimalDelegate(1));
-    ui->powerTable->setItemDelegateForColumn(POWER_COL_RA, new HMSDelegate());
-    ui->powerTable->setItemDelegateForColumn(POWER_COL_DEC, new DMSDelegate());
-    ui->powerTable->setItemDelegateForColumn(POWER_COL_GAL_LAT, new DecimalDelegate(0));
-    ui->powerTable->setItemDelegateForColumn(POWER_COL_GAL_LON, new DecimalDelegate(0));
-    ui->powerTable->setItemDelegateForColumn(POWER_COL_AZ, new DecimalDelegate(0));
-    ui->powerTable->setItemDelegateForColumn(POWER_COL_EL, new DecimalDelegate(0));
-    ui->powerTable->setItemDelegateForColumn(POWER_COL_VBCRS, new DecimalDelegate(1));
-    ui->powerTable->setItemDelegateForColumn(POWER_COL_VLSR, new DecimalDelegate(1));
-    ui->powerTable->setItemDelegateForColumn(POWER_COL_AIR_TEMP, new DecimalDelegate(1));
-    ui->powerTable->setItemDelegateForColumn(POWER_COL_ROT_AZ, new DecimalDelegate(0));
-    ui->powerTable->setItemDelegateForColumn(POWER_COL_ROT_EL, new DecimalDelegate(0));
-    ui->powerTable->setItemDelegateForColumn(POWER_COL_ROT_AZ_OFF, new DecimalDelegate(0));
-    ui->powerTable->setItemDelegateForColumn(POWER_COL_ROT_EL_OFF, new DecimalDelegate(0));
+    ui->powerTable->setItemDelegateForColumn(POWER_COL_TIME, new TimeDelegate("hh:mm:ss", ui->powerTable));
+    //ui->powerTable->setItemDelegateForColumn(POWER_COL_POWER, new DecimalDelegate(6, ui->powerTable));
+    ui->powerTable->setItemDelegateForColumn(POWER_COL_POWER_DB, new DecimalDelegate(1, ui->powerTable));
+    ui->powerTable->setItemDelegateForColumn(POWER_COL_POWER_DBM, new DecimalDelegate(1, ui->powerTable));
+    ui->powerTable->setItemDelegateForColumn(POWER_COL_TSYS, new DecimalDelegate(0, ui->powerTable));
+    ui->powerTable->setItemDelegateForColumn(POWER_COL_TSYS0, new DecimalDelegate(0, ui->powerTable));
+    ui->powerTable->setItemDelegateForColumn(POWER_COL_TSOURCE, new DecimalDelegate(0, ui->powerTable));
+    ui->powerTable->setItemDelegateForColumn(POWER_COL_TB, new DecimalDelegate(0, ui->powerTable));
+    ui->powerTable->setItemDelegateForColumn(POWER_COL_TSKY, new DecimalDelegate(0, ui->powerTable));
+    ui->powerTable->setItemDelegateForColumn(POWER_COL_FLUX, new DecimalDelegate(2, ui->powerTable));
+    ui->powerTable->setItemDelegateForColumn(POWER_COL_SIGMA_T, new DecimalDelegate(2, ui->powerTable));
+    ui->powerTable->setItemDelegateForColumn(POWER_COL_SIGMA_S, new DecimalDelegate(1, ui->powerTable));
+    ui->powerTable->setItemDelegateForColumn(POWER_COL_RA, new HMSDelegate(ui->powerTable));
+    ui->powerTable->setItemDelegateForColumn(POWER_COL_DEC, new DMSDelegate(ui->powerTable));
+    ui->powerTable->setItemDelegateForColumn(POWER_COL_GAL_LAT, new DecimalDelegate(0, ui->powerTable));
+    ui->powerTable->setItemDelegateForColumn(POWER_COL_GAL_LON, new DecimalDelegate(0, ui->powerTable));
+    ui->powerTable->setItemDelegateForColumn(POWER_COL_AZ, new DecimalDelegate(0, ui->powerTable));
+    ui->powerTable->setItemDelegateForColumn(POWER_COL_EL, new DecimalDelegate(0, ui->powerTable));
+    ui->powerTable->setItemDelegateForColumn(POWER_COL_VBCRS, new DecimalDelegate(1, ui->powerTable));
+    ui->powerTable->setItemDelegateForColumn(POWER_COL_VLSR, new DecimalDelegate(1, ui->powerTable));
+    ui->powerTable->setItemDelegateForColumn(POWER_COL_AIR_TEMP, new DecimalDelegate(1, ui->powerTable));
+    ui->powerTable->setItemDelegateForColumn(POWER_COL_ROT_AZ, new DecimalDelegate(0, ui->powerTable));
+    ui->powerTable->setItemDelegateForColumn(POWER_COL_ROT_EL, new DecimalDelegate(0, ui->powerTable));
+    ui->powerTable->setItemDelegateForColumn(POWER_COL_ROT_AZ_OFF, new DecimalDelegate(0, ui->powerTable));
+    ui->powerTable->setItemDelegateForColumn(POWER_COL_ROT_EL_OFF, new DecimalDelegate(0, ui->powerTable));
 
     resizeSpectrumMarkerTable();
-    ui->spectrumMarkerTable->setItemDelegateForColumn(SPECTRUM_MARKER_COL_FREQ, new DecimalDelegate(6));
-    ui->spectrumMarkerTable->setItemDelegateForColumn(SPECTRUM_MARKER_COL_VALUE, new DecimalDelegate(1));
-    ui->spectrumMarkerTable->setItemDelegateForColumn(SPECTRUM_MARKER_COL_DELTA_X, new DecimalDelegate(6));
-    ui->spectrumMarkerTable->setItemDelegateForColumn(SPECTRUM_MARKER_COL_DELTA_Y, new DecimalDelegate(1));
-    ui->spectrumMarkerTable->setItemDelegateForColumn(SPECTRUM_MARKER_COL_VR, new DecimalDelegate(2));
-    ui->spectrumMarkerTable->setItemDelegateForColumn(SPECTRUM_MARKER_COL_R, new DecimalDelegate(1));
-    ui->spectrumMarkerTable->setItemDelegateForColumn(SPECTRUM_MARKER_COL_D, new DecimalDelegate(1));
-    ui->spectrumMarkerTable->setItemDelegateForColumn(SPECTRUM_MARKER_COL_R_MIN, new DecimalDelegate(1));
-    ui->spectrumMarkerTable->setItemDelegateForColumn(SPECTRUM_MARKER_COL_V, new DecimalDelegate(1));
+    ui->spectrumMarkerTable->setItemDelegateForColumn(SPECTRUM_MARKER_COL_FREQ, new DecimalDelegate(6, ui->spectrumMarkerTable));
+    ui->spectrumMarkerTable->setItemDelegateForColumn(SPECTRUM_MARKER_COL_VALUE, new DecimalDelegate(1, ui->spectrumMarkerTable));
+    ui->spectrumMarkerTable->setItemDelegateForColumn(SPECTRUM_MARKER_COL_DELTA_X, new DecimalDelegate(6, ui->spectrumMarkerTable));
+    ui->spectrumMarkerTable->setItemDelegateForColumn(SPECTRUM_MARKER_COL_DELTA_Y, new DecimalDelegate(1, ui->spectrumMarkerTable));
+    ui->spectrumMarkerTable->setItemDelegateForColumn(SPECTRUM_MARKER_COL_VR, new DecimalDelegate(2, ui->spectrumMarkerTable));
+    ui->spectrumMarkerTable->setItemDelegateForColumn(SPECTRUM_MARKER_COL_R, new DecimalDelegate(1, ui->spectrumMarkerTable));
+    ui->spectrumMarkerTable->setItemDelegateForColumn(SPECTRUM_MARKER_COL_D, new DecimalDelegate(1, ui->spectrumMarkerTable));
+    ui->spectrumMarkerTable->setItemDelegateForColumn(SPECTRUM_MARKER_COL_R_MIN, new DecimalDelegate(1, ui->spectrumMarkerTable));
+    ui->spectrumMarkerTable->setItemDelegateForColumn(SPECTRUM_MARKER_COL_V, new DecimalDelegate(1, ui->spectrumMarkerTable));
 
     // Create blank marker table
     ui->spectrumMarkerTable->setRowCount(SPECTRUM_MARKER_ROWS); // 1 peak and two markers
@@ -2187,10 +2196,10 @@ RadioAstronomyGUI::RadioAstronomyGUI(PluginAPI* pluginAPI, DeviceUISet *deviceUI
     connect(ui->spectrumMarkerTable, &QTableWidget::itemChanged, this, &RadioAstronomyGUI::spectrumMarkerTableItemChanged);
 
     resizePowerMarkerTable();
-    ui->powerMarkerTable->setItemDelegateForColumn(POWER_MARKER_COL_TIME, new TimeDelegate());
-    ui->powerMarkerTable->setItemDelegateForColumn(POWER_MARKER_COL_VALUE, new DecimalDelegate(1));
-    ui->powerMarkerTable->setItemDelegateForColumn(POWER_MARKER_COL_DELTA_X, new TimeDeltaDelegate());
-    ui->powerMarkerTable->setItemDelegateForColumn(POWER_MARKER_COL_DELTA_Y, new DecimalDelegate(1));
+    ui->powerMarkerTable->setItemDelegateForColumn(POWER_MARKER_COL_TIME, new TimeDelegate("hh:mm:ss", ui->powerMarkerTable));
+    ui->powerMarkerTable->setItemDelegateForColumn(POWER_MARKER_COL_VALUE, new DecimalDelegate(1, ui->powerMarkerTable));
+    ui->powerMarkerTable->setItemDelegateForColumn(POWER_MARKER_COL_DELTA_X, new TimeDeltaDelegate(ui->powerMarkerTable));
+    ui->powerMarkerTable->setItemDelegateForColumn(POWER_MARKER_COL_DELTA_Y, new DecimalDelegate(1, ui->powerMarkerTable));
 
     // Create blank marker table
     ui->powerMarkerTable->setRowCount(POWER_MARKER_ROWS); // 1 peak and two markers
diff --git a/sdrbase/channel/channelwebapiutils.cpp b/sdrbase/channel/channelwebapiutils.cpp
index 496bc3eb6b..4fb10f71a5 100644
--- a/sdrbase/channel/channelwebapiutils.cpp
+++ b/sdrbase/channel/channelwebapiutils.cpp
@@ -338,7 +338,9 @@ bool ChannelWebAPIUtils::getCenterFrequency(unsigned int deviceIndex, double &fr
     if (getDeviceSettings(deviceIndex, deviceSettingsResponse, deviceSet))
     {
         QJsonObject *jsonObj = deviceSettingsResponse.asJsonObject();
-        return WebAPIUtils::getSubObjectDouble(*jsonObj, "centerFrequency", frequencyInHz);
+        bool result = WebAPIUtils::getSubObjectDouble(*jsonObj, "centerFrequency", frequencyInHz);
+        delete jsonObj;
+        return result;
     }
     else
     {
diff --git a/sdrgui/gui/spectrummeasurements.cpp b/sdrgui/gui/spectrummeasurements.cpp
index 2ff356718f..3ee45f2d67 100644
--- a/sdrgui/gui/spectrummeasurements.cpp
+++ b/sdrgui/gui/spectrummeasurements.cpp
@@ -300,8 +300,8 @@ void SpectrumMeasurements::createPeakTable(int peaks)
     m_peakTable->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);
     m_peakTable->setSizeAdjustPolicy(QAbstractScrollArea::AdjustToContents);
 
-    m_peakTable->setItemDelegateForColumn(COL_FREQUENCY, new UnitsDelegate());
-    m_peakTable->setItemDelegateForColumn(COL_POWER, new UnitsDelegate());
+    m_peakTable->setItemDelegateForColumn(COL_FREQUENCY, new UnitsDelegate(m_peakTable));
+    m_peakTable->setItemDelegateForColumn(COL_POWER, new UnitsDelegate(m_peakTable));
 
     // Cell context menu
     m_peakTable->setContextMenuPolicy(Qt::CustomContextMenu);