diff --git a/widgets/mainwindow.cpp b/widgets/mainwindow.cpp
index 7d103f92c..482d9c50f 100644
--- a/widgets/mainwindow.cpp
+++ b/widgets/mainwindow.cpp
@@ -294,6 +294,9 @@ MainWindow::MainWindow(QDir const& temp_directory, bool multiple,
   m_secID {0},
   m_idleMinutes {0},
   m_nSubMode {0},
+  m_nSubMode_Q65 {0},
+  m_nSubMode_JT65 {0},
+  m_nSubMode_JT4 {0},
   m_nclearave {1},
   m_nWSPRdecodes {0},
   m_k0 {9999999},
@@ -1171,7 +1174,7 @@ void MainWindow::writeSettings()
   m_settings->setValue("FST4W_FTol",ui->sbFST4W_FTol->value());
   m_settings->setValue("FST4_FLow",ui->sbF_Low->value());
   m_settings->setValue("FST4_FHigh",ui->sbF_High->value());
-  m_settings->setValue("SubMode",ui->sbSubmode->value());
+//  m_settings->setValue("SubMode",ui->sbSubmode->value());
   m_settings->setValue("DTtol",m_DTtol);
   m_settings->setValue("Ftol", ui->sbFtol->value ());
   m_settings->setValue("MinSync",m_minSync);
@@ -1193,7 +1196,7 @@ void MainWindow::writeSettings()
   m_settings->setValue("UploadSpots",m_uploadWSPRSpots);
   m_settings->setValue("NoOwnCall",ui->cbNoOwnCall->isChecked());
   m_settings->setValue ("BandHopping", ui->band_hopping_group_box->isChecked ());
-  m_settings->setValue ("TRPeriod", ui->sbTR->value ());
+//  m_settings->setValue ("TRPeriod", ui->sbTR->value ());
   m_settings->setValue ("MaxDrift", ui->sbMaxDrift->value());
   m_settings->setValue ("TRPeriod_FST4W", ui->sbTR_FST4W->value ());
   m_settings->setValue("FastMode",m_bFastMode);
@@ -1277,8 +1280,14 @@ void MainWindow::readSettings()
   ui->sbFST4W_RxFreq->setValue(m_settings->value("FST4W_RxFreq",1500).toInt());
   ui->sbF_Low->setValue(m_settings->value("FST4_FLow",600).toInt());
   ui->sbF_High->setValue(m_settings->value("FST4_FHigh",1400).toInt());
-  m_nSubMode=m_settings->value("SubMode",0).toInt();
-  ui->sbSubmode->setValue(m_nSubMode);
+//  m_nSubMode=m_settings->value("SubMode",0).toInt();
+  if (m_mode=="Q65") m_nSubMode=m_settings->value("SubMode_Q65",0).toInt();
+  if (m_mode=="JT65") m_nSubMode=m_settings->value("SubMode_JT65",0).toInt();
+  if (m_mode=="JT4") m_nSubMode=m_settings->value("SubMode_JT4",0).toInt();
+//  ui->sbSubmode->setValue(m_nSubMode);
+  if (m_mode=="Q65") ui->sbSubmode->setValue(m_nSubMode_Q65);
+  if (m_mode=="JT65") ui->sbSubmode->setValue(m_nSubMode_JT65);
+  if (m_mode=="JT4") ui->sbSubmode->setValue(m_nSubMode_JT4);
   ui->sbFtol->setValue (m_settings->value("Ftol", 50).toInt());
   ui->sbFST4W_FTol->setValue(m_settings->value("FST4W_FTol",100).toInt());
   m_minSync=m_settings->value("MinSync",0).toInt();
@@ -1289,7 +1298,10 @@ void MainWindow::readSettings()
   m_bSWL=m_settings->value("SWL",false).toBool();
   m_bFast9=m_settings->value("Fast9",false).toBool();
   m_bFastMode=m_settings->value("FastMode",false).toBool();
-  ui->sbTR->setValue (m_settings->value ("TRPeriod", 15).toInt());
+//  ui->sbTR->setValue (m_settings->value ("TRPeriod", 15).toInt());
+  if (m_mode=="Q65") ui->sbTR->setValue (m_settings->value ("TRPeriod_Q65", 30).toInt());
+  if (m_mode=="MSK144") ui->sbTR->setValue (m_settings->value ("TRPeriod_MSK144", 15).toInt());
+  if (m_mode=="FST4") ui->sbTR->setValue (m_settings->value ("TRPeriod_FST4", 60).toInt());
   ui->sbMaxDrift->setValue (m_settings->value ("MaxDrift",0).toInt());
   ui->sbTR_FST4W->setValue (m_settings->value ("TRPeriod_FST4W", 15).toInt());
   m_lastMonitoredFrequency = m_settings->value ("DialFreq",
@@ -6502,7 +6514,8 @@ void MainWindow::on_actionFST4_triggered()
   switch_mode (Modes::FST4);
   m_wideGraph->setMode(m_mode);
   ui->sbTR->values ({15, 30, 60, 120, 300, 900, 1800});
-  on_sbTR_valueChanged (ui->sbTR->value());
+  ui->sbTR->setValue (m_settings->value ("TRPeriod_FST4", 60).toInt());    // remember sbTR settings by mode
+  QTimer::singleShot (50, [=] {on_sbTR_valueChanged (ui->sbTR->value());});
   statusChanged();
   m_bOK_to_chk=true;
   chk_FST4_freq_range();
@@ -6722,7 +6735,9 @@ void MainWindow::on_actionJT4_triggered()
   ui->lh_decodes_headings_label->setText("UTC   dB   DT Freq    " + tr ("Message"));
   ui->rh_decodes_headings_label->setText("UTC   dB   DT Freq    " + tr ("Message"));
   if(bVHF) {
-    ui->sbSubmode->setValue(m_nSubMode);
+//    ui->sbSubmode->setValue(m_nSubMode);
+    m_nSubMode=m_settings->value("SubMode_JT4",0).toInt();
+    QTimer::singleShot (50, [=] {ui->sbSubmode->setValue(m_settings->value("SubMode_JT4",0).toInt());});
   } else {
     ui->sbSubmode->setValue(0);
   }
@@ -6823,8 +6838,10 @@ void MainWindow::on_actionJT65_triggered()
   m_bFast9=false;
   ui->sbSubmode->setMaximum(2);
   if(bVHF) {
-    ui->sbSubmode->setValue(m_nSubMode);
-    ui->lh_decodes_title_label->setText(tr ("Single-Period Decodes"));
+//    ui->sbSubmode->setValue(m_nSubMode);
+      m_nSubMode=m_settings->value("SubMode_JT65",0).toInt();
+      QTimer::singleShot (50, [=] {ui->sbSubmode->setValue(m_settings->value("SubMode_JT65",0).toInt());});
+      ui->lh_decodes_title_label->setText(tr ("Single-Period Decodes"));
     ui->rh_decodes_title_label->setText(tr ("Average Decodes"));
   } else {
     ui->sbSubmode->setValue(0);
@@ -6859,8 +6876,11 @@ void MainWindow::on_actionQ65_triggered()
   Q_EMIT FFTSize(m_FFTSize);
   m_hsymStop=49;
   ui->sbTR->values ({15, 30, 60, 120, 300});
-  on_sbTR_valueChanged (ui->sbTR->value());
-  ui->sbSubmode->setValue(m_nSubMode);
+  ui->sbTR->setValue (m_settings->value ("TRPeriod_Q65", 30).toInt());    // remember sbTR settings by mode
+  QTimer::singleShot (50, [=] {on_sbTR_valueChanged (ui->sbTR->value());});
+//  ui->sbSubmode->setValue(m_nSubMode);
+  m_nSubMode=m_settings->value("SubMode_Q65",0).toInt();
+  QTimer::singleShot (50, [=] {ui->sbSubmode->setValue(m_settings->value("SubMode_Q65",0).toInt());});
   QString fname {QDir::toNativeSeparators(m_config.temp_dir().absoluteFilePath ("red.dat"))};
   m_wideGraph->setRedFile(fname);
   m_wideGraph->setMode(m_mode);
@@ -6930,7 +6950,8 @@ void MainWindow::on_actionMSK144_triggered()
   m_bFastMode=true;
   m_bFast9=false;
   ui->sbTR->values ({5, 10, 15, 30});
-  on_sbTR_valueChanged (ui->sbTR->value());
+  ui->sbTR->setValue (m_settings->value ("TRPeriod_MSK144", 15).toInt());    // remember sbTR settings by mode
+  QTimer::singleShot (50, [=] {on_sbTR_valueChanged (ui->sbTR->value());});
   m_wideGraph->hide();
   m_fastGraph->showNormal();
   ui->TxFreqSpinBox->setValue(1500);
@@ -8048,7 +8069,16 @@ void MainWindow::on_sbTR_valueChanged(int value)
     m_wideGraph->setPeriod (value, m_nsps);
     progressBar.setMaximum (value);
   }
-  if(m_mode=="FST4") chk_FST4_freq_range();
+  if (m_mode=="Q65") {
+      QTimer::singleShot (200, [=] {m_settings->setValue ("TRPeriod_Q65", ui->sbTR->value ());});
+  }
+  if (m_mode=="MSK144") {
+      QTimer::singleShot (200, [=] {m_settings->setValue ("TRPeriod_MSK144", ui->sbTR->value ());});
+  }
+  if (m_mode=="FST4") {
+      chk_FST4_freq_range();
+      QTimer::singleShot (200, [=] {m_settings->setValue ("TRPeriod_FST4", ui->sbTR->value ());});
+  }
 //  if(m_transmitting) on_stopTxButton_clicked();      //### Is this needed or desirable? ###
   on_sbSubmode_valueChanged(ui->sbSubmode->value());
   statusUpdate ();
@@ -8104,6 +8134,9 @@ void MainWindow::on_sbSubmode_valueChanged(int n)
     if(m_bFast9) ui->TxFreqSpinBox->setValue(700);
   }
   if(m_transmitting and m_bFast9 and m_nSubMode>=4) transmit (99.0);
+  if (m_mode=="Q65") {QTimer::singleShot (200, [=] {m_settings->setValue("SubMode_Q65",ui->sbSubmode->value());});}
+  if (m_mode=="JT65") {QTimer::singleShot (200, [=] {m_settings->setValue("SubMode_JT65",ui->sbSubmode->value());});}
+  if (m_mode=="JT4") {QTimer::singleShot (200, [=] {m_settings->setValue("SubMode_JT4",ui->sbSubmode->value());});}
   statusUpdate ();
 }
 
diff --git a/widgets/mainwindow.h b/widgets/mainwindow.h
index 9784cc621..01c142e88 100644
--- a/widgets/mainwindow.h
+++ b/widgets/mainwindow.h
@@ -461,6 +461,9 @@ private:
   qint32  m_secID;
   qint32  m_idleMinutes;
   qint32  m_nSubMode;
+  qint32  m_nSubMode_Q65;
+  qint32  m_nSubMode_JT65;
+  qint32  m_nSubMode_JT4;
   qint32  m_nclearave;
   qint32  m_minSync;
   qint32  m_dBm;