diff --git a/widgets/mainwindow.cpp b/widgets/mainwindow.cpp
index 074576648..ef531fa42 100644
--- a/widgets/mainwindow.cpp
+++ b/widgets/mainwindow.cpp
@@ -6987,7 +6987,8 @@ void MainWindow::setXIT(int n, Frequency base)
   m_XIT = 0;
   if (!m_bSimplex) {
     // m_bSimplex is false, so we can use split mode if requested
-    if (m_config.split_mode () && (!m_config.enable_VHF_features () || m_mode == "FT8")) {
+    if (m_config.split_mode () && (!m_config.enable_VHF_features () || m_mode == "FT8" ||
+        m_mode=="FST4")) {
       // Don't use XIT for VHF & up
       m_XIT=(n/500)*500 - 1500;
     }
diff --git a/widgets/mainwindow.ui b/widgets/mainwindow.ui
index 7dd9f4ab2..c777609b0 100644
--- a/widgets/mainwindow.ui
+++ b/widgets/mainwindow.ui
@@ -2121,7 +2121,7 @@ list. The list can be maintained in Settings (F2).</string>
                        <number>1400</number>
                       </property>
                       <property name="maximum">
-                       <number>1700</number>
+                       <number>1600</number>
                       </property>
                       <property name="value">
                        <number>1500</number>