diff --git a/plugins/channelrx/demodam/amdemodgui.cpp b/plugins/channelrx/demodam/amdemodgui.cpp
index e442dca2c..960a7950b 100644
--- a/plugins/channelrx/demodam/amdemodgui.cpp
+++ b/plugins/channelrx/demodam/amdemodgui.cpp
@@ -200,11 +200,13 @@ void AMDemodGUI::on_frequencyMode_currentIndexChanged(int index)
 {
     m_settings.m_frequencyMode = (AMDemodSettings::FrequencyMode) index;
     ui->deltaFrequency->blockSignals(true);
+
     if (m_settings.m_frequencyMode == AMDemodSettings::Offset)
     {
         ui->deltaFrequency->setValueRange(false, 7, -9999999, 9999999);
         ui->deltaFrequency->setValue(m_settings.m_inputFrequencyOffset);
         ui->deltaUnits->setText("Hz");
+
         if (m_settings.m_snap)
         {
             m_settings.m_snap = false;
@@ -229,10 +231,14 @@ void AMDemodGUI::on_frequencyMode_currentIndexChanged(int index)
         ui->deltaFrequency->setValue(freqToChannel(m_settings.m_frequency) / 1000);
         ui->deltaUnits->setText("MHz");
     }
+
     ui->deltaFrequency->blockSignals(false);
+
     if (m_settings.m_snap) {
         applySnap();
     }
+
+    updateAbsoluteCenterFrequency();
     applySettings();
 }
 
@@ -256,11 +262,14 @@ void AMDemodGUI::calcOffset()
 void AMDemodGUI::channelMarkerChangedByCursor()
 {
     m_settings.m_inputFrequencyOffset = m_channelMarker.getCenterFrequency();
+
     if (m_settings.m_snap) {
         applySnap();
     }
+
     m_settings.m_frequency = m_deviceCenterFrequency + m_settings.m_inputFrequencyOffset;
     int value = 0;
+
     if (m_settings.m_frequencyMode == AMDemodSettings::Offset) {
         value = m_settings.m_inputFrequencyOffset;
     } else if (m_settings.m_frequencyMode == AMDemodSettings::MediumWave) {
@@ -653,9 +662,32 @@ void AMDemodGUI::snapClicked()
     } else {
         m_settings.m_snap = !m_settings.m_snap;
     }
-    if (m_settings.m_snap) {
+
+    if (m_settings.m_snap)
+    {
         applySnap();
+
+        qint64 value;
+
+        if (m_settings.m_frequencyMode == AMDemodSettings::Offset) {
+            value = m_settings.m_inputFrequencyOffset;
+        } else if (m_settings.m_frequencyMode == AMDemodSettings::MediumWave) {
+            value = m_settings.m_frequency / 1000;
+        } else if (m_settings.m_frequencyMode == AMDemodSettings::Airband25k) {
+            value = m_settings.m_frequency / 1000;
+        } else if (m_settings.m_frequencyMode == AMDemodSettings::Airband8K) {
+            value = freqToChannel(m_settings.m_frequency) / 1000;
+        }
+
+        // We support finer tuning by marker than by deltaFrequency widget (unless in offset mode),
+        // so block signals so it doesn't truncate frequency to limit of widget
+        ui->deltaFrequency->blockSignals(true);
+        ui->deltaFrequency->setValue(value);
+        ui->deltaFrequency->blockSignals(false);
+
+        updateAbsoluteCenterFrequency();
     }
+
     displaySnap();
     applySettings();
 }
@@ -667,6 +699,7 @@ void AMDemodGUI::applySnap()
     }
 
     qint64 frequency = m_deviceCenterFrequency + m_settings.m_inputFrequencyOffset;
+
     if (m_settings.m_frequencyMode == AMDemodSettings::MediumWave)
     {
         frequency = (frequency / 1000) * 1000;
@@ -677,9 +710,11 @@ void AMDemodGUI::applySnap()
     }
     else if (m_settings.m_frequencyMode == AMDemodSettings::Airband8K)
     {
-        frequency = std::round((frequency / 8333) * 8333.3);
+        frequency = std::round((frequency / 8333) * 8333.33333333);
     }
+
     m_settings.m_inputFrequencyOffset = frequency - m_deviceCenterFrequency;
+    m_settings.m_frequency = frequency;
     m_channelMarker.setCenterFrequency(m_settings.m_inputFrequencyOffset);
 }