diff --git a/Configuration.ui b/Configuration.ui
index fa16476e9..44a57af24 100644
--- a/Configuration.ui
+++ b/Configuration.ui
@@ -357,7 +357,7 @@
           <item row="0" column="1">
            <widget class="QCheckBox" name="enable_VHF_features_check_box">
             <property name="text">
-             <string>Enable VHF/UHF/Microwave features</string>
+             <string>Enable VHF and submode features</string>
             </property>
            </widget>
           </item>
@@ -3110,11 +3110,11 @@ Right click for insert and delete options.</string>
  <buttongroups>
   <buttongroup name="CAT_handshake_button_group"/>
   <buttongroup name="TX_audio_source_button_group"/>
-  <buttongroup name="special_op_activity_button_group"/>
   <buttongroup name="TX_mode_button_group"/>
+  <buttongroup name="special_op_activity_button_group"/>
   <buttongroup name="CAT_data_bits_button_group"/>
+  <buttongroup name="split_mode_button_group"/>
   <buttongroup name="PTT_method_button_group"/>
   <buttongroup name="CAT_stop_bits_button_group"/>
-  <buttongroup name="split_mode_button_group"/>
  </buttongroups>
 </ui>
diff --git a/lib/fst280/fst280.txt b/lib/fst280/fst280.txt
index 5e2c1c935..8c9757e40 100644
--- a/lib/fst280/fst280.txt
+++ b/lib/fst280/fst280.txt
@@ -1,10 +1,10 @@
 -------------------------------------------------------------------
  NSPS  T/R    TxT   Tst  Txtra Txtra-2.6s  DF    BW   SNR77  SNR50
-       (s)    (s)   (s)   (s)     (s)     (Hz)  (Hz)  (dB)    (dB)
+       (s)    (s)   (s)   (s)     (s)     (Hz)  (Hz)  (dB)?  (dB)?
 -------------------------------------------------------------------
-  800   15   10.93  0.5  3.57    0.97    15.00  60.0  -21.3  -23.2
- 1680   30   22.96  1.0  6.04    3.44     7.14  28.6  -24.5  -26.4
- 4000   60   54.67  1.0  4.33    1.73     3.00  12.0  -28.3  -30.2
- 8400  120  114.80  1.0  4.20    1.60     1.43   5.7  -31.5  -33.4
-21504  300  293.89  1.0  5.11    2.51     0.56   2.2  -35.5  -37.4
+  800   15   10.93  0.5  3.57    0.97    15.00  60.0  -21.3  -22.6
+ 1680   30   22.96  1.0  6.04    3.44     7.14  28.6  -24.5  -25.8
+ 4000   60   54.67  1.0  4.33    1.73     3.00  12.0  -28.3  -29.6
+ 8400  120  114.80  1.0  4.20    1.60     1.43   5.7  -31.5  -32.8
+21504  300  293.89  1.0  5.11    2.51     0.56   2.2  -35.5  -36.8
 -------------------------------------------------------------------
diff --git a/lib/fst280_decode.f90 b/lib/fst280_decode.f90
index 27eccafb3..98c8cd191 100644
--- a/lib/fst280_decode.f90
+++ b/lib/fst280_decode.f90
@@ -159,7 +159,7 @@ contains
       do isync=0,1
          if(isync.eq.0) then
             fc1=0.0
-            is0=nint(fs2)
+            is0=2*nint(fs2)
             ishw=is0
             isst=4*hmod
             ifhw=12
diff --git a/widgets/mainwindow.cpp b/widgets/mainwindow.cpp
index 750e40520..6b17d8e24 100644
--- a/widgets/mainwindow.cpp
+++ b/widgets/mainwindow.cpp
@@ -959,7 +959,6 @@ MainWindow::MainWindow(QDir const& temp_directory, bool multiple,
   m_bFastDone=false;
   m_bAltV=false;
   m_bNoMoreFiles=false;
-  m_bVHFwarned=false;
   m_bDoubleClicked=false;
   m_bCallingCQ=false;
   m_bCheckedContest=false;
@@ -4082,11 +4081,6 @@ void MainWindow::guiUpdate()
 //Once per second:
   if(nsec != m_sec0) {
 //      qDebug() << "onesec" << m_mode;
-    if(m_freqNominal!=0 and m_freqNominal<50000000 and m_config.enable_VHF_features()) {
-      if(!m_bVHFwarned) vhfWarning();
-    } else {
-      m_bVHFwarned=false;
-    }
     m_currentBand=m_config.bands()->find(m_freqNominal);
 
     if( SpecOp::HOUND == m_config.special_op_id() ) {
@@ -6436,7 +6430,6 @@ void MainWindow::switch_mode (Mode mode)
     ui->RxFreqSpinBox->setMaximum(5000);
     ui->RxFreqSpinBox->setSingleStep(1);
   }
-  m_bVHFwarned=false;
   bool b=m_mode=="FreqCal";
   ui->tabWidget->setVisible(!b);
   if(b) {
@@ -6671,20 +6664,11 @@ void MainWindow::band_changed (Frequency f)
       {
         m_frequency_list_fcal_iter = m_config.frequencies ()->find (f);
       }
-    float r=m_freqNominal/(f+0.0001);
-    if(r<0.9 or r>1.1) m_bVHFwarned=false;
     setRig (f);
     setXIT (ui->TxFreqSpinBox->value ());
   }
 }
 
-void MainWindow::vhfWarning()
-{
-  MessageBox::warning_message (this, tr ("VHF features warning"),
-     "VHF/UHF/Microwave features is enabled on a lower frequency band.");
-  m_bVHFwarned=true;
-}
-
 void MainWindow::enable_DXCC_entity (bool on)
 {
   if (on and !m_mode.startsWith ("WSPR") and m_mode!="Echo") {
diff --git a/widgets/mainwindow.h b/widgets/mainwindow.h
index ac8c22d15..51a935c93 100644
--- a/widgets/mainwindow.h
+++ b/widgets/mainwindow.h
@@ -677,7 +677,6 @@ private:
   bool m_tx_watchdog;           // true when watchdog triggered
   bool m_block_pwr_tooltip;
   bool m_PwrBandSetOK;
-  bool m_bVHFwarned;
   bool m_bDisplayedOnce;
   Frequency m_lastMonitoredFrequency;
   double m_toneSpacing;
@@ -762,7 +761,6 @@ private:
   void tx_watchdog (bool triggered);
   qint64  nWidgets(QString t);
   void displayWidgets(qint64 n);
-  void vhfWarning();
   QChar current_submode () const; // returns QChar {0} if submode is not appropriate
   void write_transmit_entry (QString const& file_name);
   void selectHound(QString t);