diff --git a/ground/openpilotgcs/src/plugins/config/configrevohwwidget.cpp b/ground/openpilotgcs/src/plugins/config/configrevohwwidget.cpp
index 73e18ba1c..c5a72f0b6 100644
--- a/ground/openpilotgcs/src/plugins/config/configrevohwwidget.cpp
+++ b/ground/openpilotgcs/src/plugins/config/configrevohwwidget.cpp
@@ -35,7 +35,7 @@
 #include <QMessageBox>
 
 
-ConfigRevoHWWidget::ConfigRevoHWWidget(QWidget *parent) : ConfigTaskWidget(parent)
+ConfigRevoHWWidget::ConfigRevoHWWidget(QWidget *parent) : ConfigTaskWidget(parent), m_refreshing(true)
 {
     m_ui = new Ui_RevoHWWidget();
     m_ui->setupUi(this);
@@ -76,6 +76,7 @@ ConfigRevoHWWidget::ConfigRevoHWWidget(QWidget *parent) : ConfigTaskWidget(paren
     populateWidgets();
     refreshWidgetsValues();
     forceConnectedState();
+    m_refreshing = false;
 }
 
 ConfigRevoHWWidget::~ConfigRevoHWWidget()
@@ -99,12 +100,14 @@ void ConfigRevoHWWidget::setupCustomCombos()
 
 void ConfigRevoHWWidget::refreshWidgetsValues(UAVObject *obj)
 {
+    m_refreshing = true;
     ConfigTaskWidget::refreshWidgetsValues(obj);
 
     usbVCPPortChanged(0);
     mainPortChanged(0);
     flexiPortChanged(0);
     modemPortChanged(0);
+    m_refreshing = false;
 }
 
 void ConfigRevoHWWidget::updateObjectsFromWidgets()
@@ -292,7 +295,9 @@ void ConfigRevoHWWidget::modemPortChanged(int index)
         m_ui->cbTxPower->setVisible(true);
         m_ui->lblInitFreq->setVisible(true);
         m_ui->leInitFreq->setVisible(true);
-        QMessageBox::warning(this, tr("Warning"), tr("Activating the Radio requires an antenna be attached or modem damage will occur."));
+        if(!m_refreshing) {
+            QMessageBox::warning(this, tr("Warning"), tr("Activating the Radio requires an antenna be attached or modem damage will occur."));
+        }
     } else {
         m_ui->lblTxPower->setVisible(false);
         m_ui->cbTxPower->setVisible(false);
diff --git a/ground/openpilotgcs/src/plugins/config/configrevohwwidget.h b/ground/openpilotgcs/src/plugins/config/configrevohwwidget.h
index bfabea5b4..d7eb30b66 100644
--- a/ground/openpilotgcs/src/plugins/config/configrevohwwidget.h
+++ b/ground/openpilotgcs/src/plugins/config/configrevohwwidget.h
@@ -44,6 +44,7 @@ public:
     ~ConfigRevoHWWidget();
 
 private:
+    bool m_refreshing;
     Ui_RevoHWWidget *m_ui;
     void setupCustomCombos();