diff --git a/widgets/mainwindow.cpp b/widgets/mainwindow.cpp
index 48767a8f4..ecb0ad970 100644
--- a/widgets/mainwindow.cpp
+++ b/widgets/mainwindow.cpp
@@ -5847,6 +5847,8 @@ void MainWindow::on_actionFST240W_triggered()
   displayWidgets(nWidgets("000001000000000001010000000000000"));
   bool bVHF=m_config.enable_VHF_features();
   setup_status_bar (bVHF);
+  m_nSubMode=0;
+  ui->sbSubmode->setValue(m_nSubMode);
   m_TRperiod = ui->sbTR_FST240W->value ();
   ui->band_hopping_group_box->setChecked(false);
   ui->band_hopping_group_box->setVisible(false);