diff --git a/models/DecodeHighlightingModel.cpp b/models/DecodeHighlightingModel.cpp
index c4e9f7580..d6c7a028a 100644
--- a/models/DecodeHighlightingModel.cpp
+++ b/models/DecodeHighlightingModel.cpp
@@ -101,22 +101,22 @@ QString DecodeHighlightingModel::highlight_name (Highlight h)
 {
   switch (h)
     {
-    case Highlight::CQ: return "CQ in message";
-    case Highlight::MyCall: return "My Call in message";
-    case Highlight::Tx: return "Transmitted message";
-    case Highlight::DXCC: return "New DXCC";
-    case Highlight::DXCCBand: return "New DXCC on Band";
-    case Highlight::Grid: return "New Grid";
-    case Highlight::GridBand: return "New Grid on Band";
-    case Highlight::Call: return "New Call";
-    case Highlight::CallBand: return "New Call on Band";
-    case Highlight::Continent: return "New Continent";
-    case Highlight::ContinentBand: return "New Continent on Band";
-    case Highlight::CQZone: return "New CQ Zone";
-    case Highlight::CQZoneBand: return "New CQ Zone on Band";
-    case Highlight::ITUZone: return "New ITU Zone";
-    case Highlight::ITUZoneBand: return "New ITU Zone on Band";
-    case Highlight::LotW: return "LotW User";
+    case Highlight::CQ: return tr ("CQ in message");
+    case Highlight::MyCall: return tr ("My Call in message");
+    case Highlight::Tx: return tr ("Transmitted message");
+    case Highlight::DXCC: return tr ("New DXCC");
+    case Highlight::DXCCBand: return tr ("New DXCC on Band");
+    case Highlight::Grid: return tr ("New Grid");
+    case Highlight::GridBand: return tr ("New Grid on Band");
+    case Highlight::Call: return tr ("New Call");
+    case Highlight::CallBand: return tr ("New Call on Band");
+    case Highlight::Continent: return tr ("New Continent");
+    case Highlight::ContinentBand: return tr ("New Continent on Band");
+    case Highlight::CQZone: return tr ("New CQ Zone");
+    case Highlight::CQZoneBand: return tr ("New CQ Zone on Band");
+    case Highlight::ITUZone: return tr ("New ITU Zone");
+    case Highlight::ITUZoneBand: return tr ("New ITU Zone on Band");
+    case Highlight::LotW: return tr ("LoTW User");
     }
   return "Unknown";
 }
@@ -166,9 +166,9 @@ QVariant DecodeHighlightingModel::data (const QModelIndex& index, int role) cons
           return QString {"%1%2%3%4%4%5%6"}
              .arg (highlight_name (item.type_))
              .arg (fg_unset || bg_unset ? QString {" ["} : QString {})
-             .arg (fg_unset ? QString {"f/g unset"} : QString {})
+             .arg (fg_unset ? tr ("f/g unset") : QString {})
              .arg (fg_unset && bg_unset ? QString {" "} : QString {})
-             .arg (bg_unset ? QString {"b/g unset"} : QString {})
+             .arg (bg_unset ? tr ("b/g unset") : QString {})
              .arg (fg_unset || bg_unset ? QString {"]"} : QString {});
           break;
         case Qt::ForegroundRole:
diff --git a/widgets/mainwindow.cpp b/widgets/mainwindow.cpp
index 7399fbe32..c120646ba 100644
--- a/widgets/mainwindow.cpp
+++ b/widgets/mainwindow.cpp
@@ -1779,8 +1779,8 @@ void MainWindow::on_actionSettings_triggered()               //Setup Dialog
     m_config.transceiver_online ();
     if(!m_bFastMode) setXIT (ui->TxFreqSpinBox->value ());
     if(m_config.single_decode() or m_mode=="JT4") {
-      ui->label_6->setText("Single-Period Decodes");
-      ui->label_7->setText("Average Decodes");
+      ui->label_6->setText(tr ("Single-Period Decodes"));
+      ui->label_7->setText(tr ("Average Decodes"));
     }
 
     update_watchdog_label ();
@@ -4215,7 +4215,7 @@ void MainWindow::stopTx2()
     WSPR_scheduling ();
     m_ntr=0;
   }
-  last_tx_label.setText("Last Tx: " + m_currentMessage.trimmed());
+  last_tx_label.setText(tr ("Last Tx: %1").arg (m_currentMessage.trimmed()));
 }
 
 void MainWindow::ba2msg(QByteArray ba, char message[])             //ba2msg()
@@ -5787,8 +5787,8 @@ void MainWindow::on_actionFT4_triggered()
   m_wideGraph->setPeriod(m_TRperiod,m_nsps);
   m_modulator->setTRPeriod(m_TRperiod); // TODO - not thread safe
   m_detector->setTRPeriod(m_TRperiod);  // TODO - not thread safe
-  ui->label_7->setText("Rx Frequency");
-  ui->label_6->setText("Band Activity");
+  ui->label_7->setText(tr ("Rx Frequency"));
+  ui->label_6->setText(tr ("Band Activity"));
   ui->decodedTextLabel->setText( "  UTC   dB   DT Freq    Message");
   displayWidgets(nWidgets("111010000100111000010000000110001"));
   ui->txrb2->setEnabled(true);
@@ -5831,12 +5831,12 @@ void MainWindow::on_actionFT8_triggered()
   m_wideGraph->setPeriod(m_TRperiod,m_nsps);
   m_modulator->setTRPeriod(m_TRperiod); // TODO - not thread safe
   m_detector->setTRPeriod(m_TRperiod);  // TODO - not thread safe
-  ui->label_7->setText("Rx Frequency");
+  ui->label_7->setText(tr ("Rx Frequency"));
   if(SpecOp::FOX==m_config.special_op_id()) {
-    ui->label_6->setText("Stations calling DXpedition " + m_config.my_callsign());
+    ui->label_6->setText(tr ("Stations calling DXpedition %1").arg (m_config.my_callsign()));
     ui->decodedTextLabel->setText( "Call         Grid   dB  Freq   Dist Age Continent");
   } else {
-    ui->label_6->setText("Band Activity");
+    ui->label_6->setText(tr ("Band Activity"));
     ui->decodedTextLabel->setText( "  UTC   dB   DT Freq    Message");
   }
   displayWidgets(nWidgets("111010000100111000010000100110001"));
@@ -5858,7 +5858,7 @@ void MainWindow::on_actionFT8_triggered()
     ui->tabWidget->setCurrentIndex(2);
     ui->TxFreqSpinBox->setValue(300);
     displayWidgets(nWidgets("111010000100111000010000000000100"));
-    ui->labDXped->setText("Fox");
+    ui->labDXped->setText(tr ("Fox"));
     on_fox_log_action_triggered();
   }
   if(SpecOp::HOUND == m_config.special_op_id()) {
@@ -5868,7 +5868,7 @@ void MainWindow::on_actionFT8_triggered()
     ui->tabWidget->setCurrentIndex(0);
     ui->cbHoldTxFreq->setChecked(true);
     displayWidgets(nWidgets("111010000100110000010000000000110"));
-    ui->labDXped->setText("Hound");
+    ui->labDXped->setText(tr ("Hound"));
     ui->txrb1->setChecked(true);
     ui->txrb2->setEnabled(false);
     ui->txrb4->setEnabled(false);
@@ -5932,8 +5932,8 @@ void MainWindow::on_actionJT4_triggered()
   m_bFast9=false;
   setup_status_bar (bVHF);
   ui->sbSubmode->setMaximum(6);
-  ui->label_6->setText("Single-Period Decodes");
-  ui->label_7->setText("Average Decodes");
+  ui->label_6->setText(tr ("Single-Period Decodes"));
+  ui->label_7->setText(tr ("Average Decodes"));
   ui->decodedTextLabel->setText("UTC   dB   DT Freq    Message");
   ui->decodedTextLabel2->setText("UTC   dB   DT Freq    Message");
   if(bVHF) {
@@ -5994,8 +5994,8 @@ void MainWindow::on_actionJT9_triggered()
   m_wideGraph->setPeriod(m_TRperiod,m_nsps);
   m_modulator->setTRPeriod(m_TRperiod); // TODO - not thread safe
   m_detector->setTRPeriod(m_TRperiod);  // TODO - not thread safe
-  ui->label_6->setText("Band Activity");
-  ui->label_7->setText("Rx Frequency");
+  ui->label_6->setText(tr ("Band Activity"));
+  ui->label_7->setText(tr ("Rx Frequency"));
   if(bVHF) {
     displayWidgets(nWidgets("111110101000111110010000000000000"));
   } else {
@@ -6034,8 +6034,8 @@ void MainWindow::on_actionJT9_JT65_triggered()
   m_bFastMode=false;
   m_bFast9=false;
   ui->sbSubmode->setValue(0);
-  ui->label_6->setText("Band Activity");
-  ui->label_7->setText("Rx Frequency");
+  ui->label_6->setText(tr ("Band Activity"));
+  ui->label_7->setText(tr ("Rx Frequency"));
   ui->decodedTextLabel->setText("UTC   dB   DT Freq    Message");
   ui->decodedTextLabel2->setText("UTC   dB   DT Freq    Message");
   displayWidgets(nWidgets("111010000001111000010000000000001"));
@@ -6078,12 +6078,12 @@ void MainWindow::on_actionJT65_triggered()
   ui->sbSubmode->setMaximum(2);
   if(bVHF) {
     ui->sbSubmode->setValue(m_nSubMode);
-    ui->label_6->setText("Single-Period Decodes");
-    ui->label_7->setText("Average Decodes");
+    ui->label_6->setText(tr ("Single-Period Decodes"));
+    ui->label_7->setText(tr ("Average Decodes"));
   } else {
     ui->sbSubmode->setValue(0);
-    ui->label_6->setText("Band Activity");
-    ui->label_7->setText("Rx Frequency");
+    ui->label_6->setText(tr ("Band Activity"));
+    ui->label_7->setText(tr ("Rx Frequency"));
   }
   if(bVHF) {
     displayWidgets(nWidgets("111110010000110110101100010000000"));
@@ -6207,8 +6207,8 @@ void MainWindow::on_actionMSK144_triggered()
   m_modulator->setTRPeriod(m_TRperiod); // TODO - not thread safe
   m_detector->setTRPeriod(m_TRperiod);  // TODO - not thread safe
   m_fastGraph->setTRPeriod(m_TRperiod);
-  ui->label_6->setText("Band Activity");
-  ui->label_7->setText("Tx Messages");
+  ui->label_6->setText(tr ("Band Activity"));
+  ui->label_7->setText(tr ("Tx Messages"));
   ui->actionMSK144->setChecked(true);
   ui->rptSpinBox->setMinimum(-8);
   ui->rptSpinBox->setMaximum(24);
@@ -8097,7 +8097,7 @@ void MainWindow::tx_watchdog (bool triggered)
       if (m_tune) stop_tuning ();
       if (m_auto) auto_tx_mode (false);
       tx_status_label.setStyleSheet ("QLabel{background-color: #ff0000}");
-      tx_status_label.setText ("Runaway Tx watchdog");
+      tx_status_label.setText (tr ("Runaway Tx watchdog"));
       QApplication::alert (this);
     }
   else
@@ -8112,7 +8112,7 @@ void MainWindow::update_watchdog_label ()
 {
   if (m_config.watchdog () && !m_mode.startsWith ("WSPR"))
     {
-      watchdog_label.setText (QString {"WD:%1m"}.arg (m_config.watchdog () - m_idleMinutes));
+      watchdog_label.setText (tr ("WD:%1m").arg (m_config.watchdog () - m_idleMinutes));
       watchdog_label.setVisible (true);
     }
   else