diff --git a/sdrgui/gui/glspectrum.cpp b/sdrgui/gui/glspectrum.cpp
index 621ef092f..388fe6845 100644
--- a/sdrgui/gui/glspectrum.cpp
+++ b/sdrgui/gui/glspectrum.cpp
@@ -1180,13 +1180,36 @@ void GLSpectrum::drawMarkers()
 
 			if (m_histogramMarkers.at(i).m_markerType == SpectrumHistogramMarkerTypePower)
 			{
+				float power = m_currentSpectrum[m_histogramMarkers.at(i).m_fftBin];
 				ypoint.ry() =
-					(m_powerScale.getRangeMax() - m_currentSpectrum[m_histogramMarkers.at(i).m_fftBin]) / m_powerScale.getRange();
+					(m_powerScale.getRangeMax() - power) / m_powerScale.getRange();
 				ypoint.ry() = ypoint.ry() < 0 ?
 					0 : ypoint.ry() > 1 ?
 						1 : ypoint.ry();
 				powerStr = displayScaledF(
-					m_currentSpectrum[m_histogramMarkers.at(i).m_fftBin],
+					power,
+					m_linear ? 'e' : 'f',
+					m_linear ? 3 : 1,
+					false
+				);
+			}
+			else if (m_histogramMarkers.at(i).m_markerType == SpectrumHistogramMarkerTypePowerMax)
+			{
+				float power = m_currentSpectrum[m_histogramMarkers.at(i).m_fftBin];
+
+				if ((m_histogramMarkers.at(i).m_holdReset) || (power > m_histogramMarkers[i].m_powerMax))
+				{
+					m_histogramMarkers[i].m_powerMax = power;
+					m_histogramMarkers[i].m_holdReset = false;
+				}
+
+				ypoint.ry() =
+					(m_powerScale.getRangeMax() - m_histogramMarkers[i].m_powerMax) / m_powerScale.getRange();
+				ypoint.ry() = ypoint.ry() < 0 ?
+					0 : ypoint.ry() > 1 ?
+						1 : ypoint.ry();
+				powerStr = displayScaledF(
+					m_histogramMarkers[i].m_powerMax,
 					m_linear ? 'e' : 'f',
 					m_linear ? 3 : 1,
 					false
@@ -1230,12 +1253,24 @@ void GLSpectrum::drawMarkers()
             else
             {
 				textColor.setAlpha(192);
-				float power0 = m_histogramMarkers.at(0).m_markerType == SpectrumHistogramMarkerTypePower ?
-					m_currentSpectrum[m_histogramMarkers.at(0).m_fftBin] :
-					m_linear ? m_histogramMarkers.at(0).m_power : CalcDb::dbPower(m_histogramMarkers.at(0).m_power);
-				float poweri = m_histogramMarkers.at(i).m_markerType == SpectrumHistogramMarkerTypePower ?
-					m_currentSpectrum[m_histogramMarkers.at(i).m_fftBin] :
-					m_linear ? m_histogramMarkers.at(i).m_power : CalcDb::dbPower(m_histogramMarkers.at(i).m_power);
+				float power0, poweri;
+
+				if (m_histogramMarkers.at(0).m_markerType == SpectrumHistogramMarkerTypePower) {
+					power0 = m_currentSpectrum[m_histogramMarkers.at(0).m_fftBin];
+				} else if (m_histogramMarkers.at(0).m_markerType == SpectrumHistogramMarkerTypePowerMax) {
+					power0 = m_histogramMarkers.at(0).m_powerMax;
+				} else {
+					power0 = m_linear ? m_histogramMarkers.at(0).m_power : CalcDb::dbPower(m_histogramMarkers.at(0).m_power);
+				}
+
+				if (m_histogramMarkers.at(i).m_markerType == SpectrumHistogramMarkerTypePower) {
+					poweri = m_currentSpectrum[m_histogramMarkers.at(i).m_fftBin];
+				} else if (m_histogramMarkers.at(i).m_markerType == SpectrumHistogramMarkerTypePowerMax) {
+					poweri = m_histogramMarkers.at(i).m_powerMax;
+				} else {
+					poweri = m_linear ? m_histogramMarkers.at(i).m_power : CalcDb::dbPower(m_histogramMarkers.at(i).m_power);
+				}
+
 				QString deltaPowerStr;
 
 				if (m_linear) {
diff --git a/sdrgui/gui/spectrummarkers.h b/sdrgui/gui/spectrummarkers.h
index e3f08f3aa..c55734404 100644
--- a/sdrgui/gui/spectrummarkers.h
+++ b/sdrgui/gui/spectrummarkers.h
@@ -27,7 +27,8 @@
 
 enum SpectrumHistogramMarkerType {
     SpectrumHistogramMarkerTypeManual,
-    SpectrumHistogramMarkerTypePower
+    SpectrumHistogramMarkerTypePower,
+    SpectrumHistogramMarkerTypePowerMax
 };
 
 struct SpectrumHistogramMarker
@@ -36,6 +37,8 @@ struct SpectrumHistogramMarker
     float m_frequency;
     int m_fftBin;
     float m_power;
+    bool m_holdReset;
+    float m_powerMax;
     SpectrumHistogramMarkerType m_markerType;
     QColor m_markerColor;
     QString m_frequencyStr;
@@ -49,6 +52,8 @@ struct SpectrumHistogramMarker
         m_frequency(0),
         m_fftBin(0),
         m_power(0),
+        m_holdReset(true),
+        m_powerMax(0),
         m_markerType(SpectrumHistogramMarkerTypeManual),
         m_markerColor(QColorConstants::White),
         m_frequencyStr(),
@@ -62,6 +67,8 @@ struct SpectrumHistogramMarker
         float frequency,
         int   fftBin,
         float power,
+        bool  holdReset,
+        float powerMax,
         SpectrumHistogramMarkerType markerType,
         QColor markerColor,
         const QString& frequencyStr,
@@ -73,6 +80,8 @@ struct SpectrumHistogramMarker
         m_frequency(frequency),
         m_fftBin(fftBin),
         m_power(power),
+        m_holdReset(holdReset),
+        m_powerMax(powerMax),
         m_markerType(markerType),
         m_markerColor(markerColor),
         m_frequencyStr(frequencyStr),
diff --git a/sdrgui/gui/spectrummarkersdialog.cpp b/sdrgui/gui/spectrummarkersdialog.cpp
index a53b57255..cc749ef5d 100644
--- a/sdrgui/gui/spectrummarkersdialog.cpp
+++ b/sdrgui/gui/spectrummarkersdialog.cpp
@@ -250,6 +250,15 @@ void SpectrumMarkersDialog::on_powerMode_currentIndexChanged(int index)
     m_histogramMarkers[m_histogramMarkerIndex].m_markerType = (SpectrumHistogramMarkerType) index;
 }
 
+void SpectrumMarkersDialog::on_powerHoldReset_clicked()
+{
+    if (m_histogramMarkers.size() == 0) {
+        return;
+    }
+
+    m_histogramMarkers[m_histogramMarkerIndex].m_holdReset = true;
+}
+
 void SpectrumMarkersDialog::on_wMarkerFrequency_changed(qint64 value)
 {
     if (m_waterfallMarkers.size() == 0) {
diff --git a/sdrgui/gui/spectrummarkersdialog.h b/sdrgui/gui/spectrummarkersdialog.h
index e6c48f53c..d4c0d3622 100644
--- a/sdrgui/gui/spectrummarkersdialog.h
+++ b/sdrgui/gui/spectrummarkersdialog.h
@@ -68,6 +68,7 @@ private slots:
     void on_markerAdd_clicked();
     void on_markerDel_clicked();
     void on_powerMode_currentIndexChanged(int index);
+    void on_powerHoldReset_clicked();
     void on_wMarkerFrequency_changed(qint64 value);
     void on_timeCoarse_valueChanged(int value);
     void on_timeFine_valueChanged(int value);
diff --git a/sdrgui/gui/spectrummarkersdialog.ui b/sdrgui/gui/spectrummarkersdialog.ui
index 3d35da8df..ba041adac 100644
--- a/sdrgui/gui/spectrummarkersdialog.ui
+++ b/sdrgui/gui/spectrummarkersdialog.ui
@@ -6,7 +6,7 @@
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>390</width>
+    <width>418</width>
     <height>201</height>
    </rect>
   </property>
@@ -34,7 +34,7 @@
         <rect>
          <x>0</x>
          <y>10</y>
-         <width>361</width>
+         <width>391</width>
          <height>74</height>
         </rect>
        </property>
@@ -367,6 +367,22 @@
             </property>
            </widget>
           </item>
+          <item>
+           <widget class="QPushButton" name="powerHoldReset">
+            <property name="maximumSize">
+             <size>
+              <width>24</width>
+              <height>24</height>
+             </size>
+            </property>
+            <property name="toolTip">
+             <string>Reset power max hold</string>
+            </property>
+            <property name="text">
+             <string>R</string>
+            </property>
+           </widget>
+          </item>
           <item>
            <widget class="QComboBox" name="powerMode">
             <property name="maximumSize">
@@ -382,7 +398,12 @@
             </item>
             <item>
              <property name="text">
-              <string>Pow</string>
+              <string>Cur</string>
+             </property>
+            </item>
+            <item>
+             <property name="text">
+              <string>Max</string>
              </property>
             </item>
            </widget>
@@ -449,7 +470,7 @@
         <rect>
          <x>0</x>
          <y>10</y>
-         <width>361</width>
+         <width>391</width>
          <height>93</height>
         </rect>
        </property>