diff --git a/plugins/channeltx/modatv/atvmodgui.cpp b/plugins/channeltx/modatv/atvmodgui.cpp
index 58e0eb1d8..899a82c3f 100644
--- a/plugins/channeltx/modatv/atvmodgui.cpp
+++ b/plugins/channeltx/modatv/atvmodgui.cpp
@@ -266,7 +266,7 @@ void ATVModGUI::on_modulation_currentIndexChanged(int index)
         ui->rfBW->setMaximum(m_channelizer->getOutputSampleRate() / 200000);
         ui->rfOppBW->setMaximum(m_channelizer->getOutputSampleRate() / 200000);
         m_channelMarker.setBandwidth(ui->rfBW->value()*100000);
-        m_channelMarker.setOppositeBandwidth(ui->rfOppBW->value()*200000);
+        m_channelMarker.setOppositeBandwidth(ui->rfOppBW->value()*100000);
         m_channelMarker.setSidebands(ChannelMarker::vlsb);
     }
     else if (index == (int) ATVMod::ATVModulationUSB)
@@ -281,7 +281,7 @@ void ATVModGUI::on_modulation_currentIndexChanged(int index)
         ui->rfBW->setMaximum(m_channelizer->getOutputSampleRate() / 200000);
         ui->rfOppBW->setMaximum(m_channelizer->getOutputSampleRate() / 200000);
         m_channelMarker.setBandwidth(ui->rfBW->value()*100000);
-        m_channelMarker.setOppositeBandwidth(ui->rfOppBW->value()*200000);
+        m_channelMarker.setOppositeBandwidth(ui->rfOppBW->value()*100000);
         m_channelMarker.setSidebands(ChannelMarker::vusb);
     }
     else
@@ -329,11 +329,11 @@ void ATVModGUI::on_rfOppBW_valueChanged(int value)
 
     if (ui->modulation->currentIndex() == (int) ATVMod::ATVModulationVestigialLSB)
     {
-        m_channelMarker.setOppositeBandwidth(-ui->rfOppBW->value()*200000);
+        m_channelMarker.setOppositeBandwidth(-ui->rfOppBW->value()*100000);
     }
     else if (ui->modulation->currentIndex() == (int) ATVMod::ATVModulationVestigialUSB)
     {
-        m_channelMarker.setOppositeBandwidth(ui->rfOppBW->value()*200000);
+        m_channelMarker.setOppositeBandwidth(ui->rfOppBW->value()*100000);
     }
     else
     {
diff --git a/sdrbase/gui/glspectrum.cpp b/sdrbase/gui/glspectrum.cpp
index da2008f65..bd5bc6e32 100644
--- a/sdrbase/gui/glspectrum.cpp
+++ b/sdrbase/gui/glspectrum.cpp
@@ -1270,10 +1270,10 @@ void GLSpectrum::applyChanges()
 			pw = dv->m_channelMarker->getLowCutoff();
 			nw = dv->m_channelMarker->getBandwidth() / 2;
 		} else if (sidebands == ChannelMarker::vusb) {
-            nw = -dv->m_channelMarker->getOppositeBandwidth() / 2; // negative bandwidth
+            nw = -dv->m_channelMarker->getOppositeBandwidth(); // negative bandwidth
             pw = dv->m_channelMarker->getBandwidth(); // positive bandwidth
         } else if (sidebands == ChannelMarker::vlsb) {
-            pw = dv->m_channelMarker->getOppositeBandwidth() / 2; // positive bandwidth
+            pw = dv->m_channelMarker->getOppositeBandwidth(); // positive bandwidth
             nw = -dv->m_channelMarker->getBandwidth(); // negative bandwidth
 		} else {
 			pw = dsbw / 2;