Index: Configuration.cpp
===================================================================
--- Configuration.cpp	(revision 6343)
+++ Configuration.cpp	(working copy)
@@ -391,6 +391,7 @@
   Q_SLOT void on_CAT_handshake_button_group_buttonClicked (int);
   Q_SLOT void on_CAT_poll_interval_spin_box_valueChanged (int);
   Q_SLOT void on_split_mode_button_group_buttonClicked (int);
+  Q_SLOT void on_split_resolution_combo_box_activated (int);
   Q_SLOT void on_test_CAT_push_button_clicked ();
   Q_SLOT void on_test_PTT_push_button_clicked (bool checked);
   Q_SLOT void on_force_DTR_combo_box_currentIndexChanged (int);
@@ -520,6 +521,7 @@
   qint32 id_interval_;
   qint32 ntrials_;
   qint32 aggressive_;
+  qint32 split_resolution_;
   double degrade_;
   bool id_after_73_;
   bool tx_QSY_allowed_;
@@ -601,6 +603,7 @@
 qint32 Configuration::id_interval () const {return m_->id_interval_;}
 qint32 Configuration::ntrials() const {return m_->ntrials_;}
 qint32 Configuration::aggressive() const {return m_->aggressive_;}
+qint32 Configuration::split_resolution() const {return m_->split_resolution_;}
 double Configuration::degrade() const {return m_->degrade_;}
 bool Configuration::id_after_73 () const {return m_->id_after_73_;}
 bool Configuration::tx_QSY_allowed () const {return m_->tx_QSY_allowed_;}
@@ -1029,6 +1032,7 @@
   ui_->CW_id_interval_spin_box->setValue (id_interval_);  
   ui_->sbNtrials->setValue (ntrials_);
   ui_->sbAggressive->setValue (aggressive_);
+  ui_->split_resolution_combo_box->setCurrentText (QString::number(split_resolution_));
   ui_->sbDegrade->setValue (degrade_);
   ui_->PTT_method_button_group->button (rig_params_.ptt_type)->setChecked (true);
   ui_->save_path_display_label->setText (save_directory_.absolutePath ());
@@ -1159,6 +1163,7 @@
   id_interval_ = settings_->value ("IDint", 0).toInt ();
   ntrials_ = settings_->value ("nTrials", 6).toInt ();
   aggressive_ = settings_->value ("Aggressive", 0).toInt ();
+  split_resolution_ = settings_->value ("SplitResolution",500).toInt ();
   save_directory_ = settings_->value ("SaveDir", default_save_directory_.absolutePath ()).toString ();
   azel_directory_ = settings_->value ("AzElDir", default_azel_directory_.absolutePath ()).toString ();
 
@@ -1373,6 +1378,7 @@
   settings_->setValue ("TXAudioSource", QVariant::fromValue (rig_params_.audio_source));
   settings_->setValue ("Polling", rig_params_.poll_interval);
   settings_->setValue ("SplitMode", QVariant::fromValue (rig_params_.split_mode));
+  settings_->setValue ("SplitResolution", split_resolution_);
   settings_->setValue ("VHFUHF", enable_VHF_features_);
   settings_->setValue ("Decode52", decode_at_52s_);
   settings_->setValue ("TwoPass", twoPass_);
@@ -1741,6 +1747,7 @@
   id_interval_ = ui_->CW_id_interval_spin_box->value ();
   ntrials_ = ui_->sbNtrials->value ();
   aggressive_ = ui_->sbAggressive->value ();
+  split_resolution_ = ui_->split_resolution_combo_box->currentText ().toInt ();
   degrade_ = ui_->sbDegrade->value ();
   id_after_73_ = ui_->CW_id_after_73_check_box->isChecked ();
   tx_QSY_allowed_ = ui_->tx_QSY_check_box->isChecked ();
@@ -1961,6 +1968,10 @@
   required_tx_frequency_ = 0;
 }
 
+void Configuration::impl::on_split_resolution_combo_box_activated  (int /* id */)
+{
+	split_resolution_ = ui_->split_resolution_combo_box->currentText ().toInt ();
+}
 void Configuration::impl::on_test_CAT_push_button_clicked ()
 {
   if (!validate ())
Index: Configuration.hpp
===================================================================
--- Configuration.hpp	(revision 6343)
+++ Configuration.hpp	(working copy)
@@ -93,6 +93,7 @@
   qint32 id_interval () const;
   qint32 ntrials() const;
   qint32 aggressive() const;
+  qint32 split_resolution() const;
   double degrade() const;
   bool id_after_73 () const;
   bool tx_QSY_allowed () const;
Index: Configuration.ui
===================================================================
--- Configuration.ui	(revision 6343)
+++ Configuration.ui	(working copy)
@@ -405,704 +405,894 @@
       <attribute name="toolTip">
        <string>Radio interface configuration settings.</string>
       </attribute>
-      <layout class="QGridLayout" name="gridLayout_3">
-       <item row="1" column="0" rowspan="11">
-        <widget class="QGroupBox" name="CAT_control_group_box">
-         <property name="sizePolicy">
-          <sizepolicy hsizetype="Preferred" vsizetype="Preferred">
-           <horstretch>0</horstretch>
-           <verstretch>0</verstretch>
-          </sizepolicy>
-         </property>
-         <property name="toolTip">
-          <string>Settings that control your CAT interface.</string>
-         </property>
-         <property name="title">
-          <string>CAT Control</string>
-         </property>
-         <layout class="QVBoxLayout" name="verticalLayout_3">
-          <item>
-           <layout class="QFormLayout" name="formLayout">
-            <property name="fieldGrowthPolicy">
-             <enum>QFormLayout::ExpandingFieldsGrow</enum>
+      <widget class="QGroupBox" name="CAT_control_group_box">
+       <property name="geometry">
+        <rect>
+         <x>9</x>
+         <y>37</y>
+         <width>264</width>
+         <height>345</height>
+        </rect>
+       </property>
+       <property name="sizePolicy">
+        <sizepolicy hsizetype="Preferred" vsizetype="Preferred">
+         <horstretch>0</horstretch>
+         <verstretch>0</verstretch>
+        </sizepolicy>
+       </property>
+       <property name="toolTip">
+        <string>Settings that control your CAT interface.</string>
+       </property>
+       <property name="title">
+        <string>CAT Control</string>
+       </property>
+       <layout class="QVBoxLayout" name="verticalLayout_3">
+        <item>
+         <layout class="QFormLayout" name="formLayout">
+          <property name="fieldGrowthPolicy">
+           <enum>QFormLayout::ExpandingFieldsGrow</enum>
+          </property>
+          <item row="0" column="0">
+           <widget class="QLabel" name="CAT_port_label">
+            <property name="text">
+             <string>Port:</string>
             </property>
-            <item row="0" column="0">
-             <widget class="QLabel" name="CAT_port_label">
-              <property name="text">
-               <string>Port:</string>
-              </property>
-              <property name="buddy">
-               <cstring>CAT_port_combo_box</cstring>
-              </property>
-             </widget>
-            </item>
-            <item row="0" column="1">
-             <widget class="QComboBox" name="CAT_port_combo_box">
-              <property name="sizePolicy">
-               <sizepolicy hsizetype="MinimumExpanding" vsizetype="Fixed">
-                <horstretch>1</horstretch>
-                <verstretch>0</verstretch>
-               </sizepolicy>
-              </property>
-              <property name="toolTip">
-               <string>Serial port used for CAT control.</string>
-              </property>
-              <property name="editable">
-               <bool>true</bool>
-              </property>
-              <property name="currentText">
-               <string/>
-              </property>
-              <property name="insertPolicy">
-               <enum>QComboBox::NoInsert</enum>
-              </property>
-             </widget>
-            </item>
-           </layout>
+            <property name="buddy">
+             <cstring>CAT_port_combo_box</cstring>
+            </property>
+           </widget>
           </item>
-          <item>
-           <widget class="QGroupBox" name="CAT_serial_port_parameters_group_box">
+          <item row="0" column="1">
+           <widget class="QComboBox" name="CAT_port_combo_box">
             <property name="sizePolicy">
-             <sizepolicy hsizetype="Preferred" vsizetype="MinimumExpanding">
-              <horstretch>0</horstretch>
+             <sizepolicy hsizetype="MinimumExpanding" vsizetype="Fixed">
+              <horstretch>1</horstretch>
               <verstretch>0</verstretch>
              </sizepolicy>
             </property>
-            <property name="title">
-             <string>Serial Port Parameters</string>
+            <property name="toolTip">
+             <string>Serial port used for CAT control.</string>
             </property>
-            <layout class="QVBoxLayout" name="verticalLayout">
-             <item>
-              <layout class="QFormLayout" name="formLayout_5">
-               <property name="fieldGrowthPolicy">
-                <enum>QFormLayout::ExpandingFieldsGrow</enum>
+            <property name="editable">
+             <bool>true</bool>
+            </property>
+            <property name="currentText">
+             <string/>
+            </property>
+            <property name="insertPolicy">
+             <enum>QComboBox::NoInsert</enum>
+            </property>
+           </widget>
+          </item>
+         </layout>
+        </item>
+        <item>
+         <widget class="QGroupBox" name="CAT_serial_port_parameters_group_box">
+          <property name="sizePolicy">
+           <sizepolicy hsizetype="Preferred" vsizetype="MinimumExpanding">
+            <horstretch>0</horstretch>
+            <verstretch>0</verstretch>
+           </sizepolicy>
+          </property>
+          <property name="title">
+           <string>Serial Port Parameters</string>
+          </property>
+          <layout class="QVBoxLayout" name="verticalLayout">
+           <item>
+            <layout class="QFormLayout" name="formLayout_5">
+             <property name="fieldGrowthPolicy">
+              <enum>QFormLayout::ExpandingFieldsGrow</enum>
+             </property>
+             <item row="0" column="0">
+              <widget class="QLabel" name="CAT_baud_label">
+               <property name="text">
+                <string>Baud Rate:</string>
                </property>
-               <item row="0" column="0">
-                <widget class="QLabel" name="CAT_baud_label">
-                 <property name="text">
-                  <string>Baud Rate:</string>
-                 </property>
-                 <property name="buddy">
-                  <cstring>CAT_serial_baud_combo_box</cstring>
-                 </property>
-                </widget>
-               </item>
-               <item row="0" column="1">
-                <widget class="QComboBox" name="CAT_serial_baud_combo_box">
-                 <property name="sizePolicy">
-                  <sizepolicy hsizetype="MinimumExpanding" vsizetype="Fixed">
-                   <horstretch>0</horstretch>
-                   <verstretch>0</verstretch>
-                  </sizepolicy>
-                 </property>
-                 <property name="toolTip">
-                  <string>Serial port data rate which must match the setting of your radio.</string>
-                 </property>
-                 <property name="currentIndex">
-                  <number>0</number>
-                 </property>
-                 <item>
-                  <property name="text">
-                   <string>1200</string>
-                  </property>
-                 </item>
-                 <item>
-                  <property name="text">
-                   <string>2400</string>
-                  </property>
-                 </item>
-                 <item>
-                  <property name="text">
-                   <string>4800</string>
-                  </property>
-                 </item>
-                 <item>
-                  <property name="text">
-                   <string>9600</string>
-                  </property>
-                 </item>
-                 <item>
-                  <property name="text">
-                   <string>19200</string>
-                  </property>
-                 </item>
-                 <item>
-                  <property name="text">
-                   <string>38400</string>
-                  </property>
-                 </item>
-                 <item>
-                  <property name="text">
-                   <string>57600</string>
-                  </property>
-                 </item>
-                 <item>
-                  <property name="text">
-                   <string>115200</string>
-                  </property>
-                 </item>
-                </widget>
-               </item>
-              </layout>
-             </item>
-             <item>
-              <widget class="QGroupBox" name="CAT_data_bits_group_box">
-               <property name="toolTip">
-                <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;Number of data bits used to communicate with your radio's CAT interface (usually eight).&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+               <property name="buddy">
+                <cstring>CAT_serial_baud_combo_box</cstring>
                </property>
-               <property name="title">
-                <string>Data Bits</string>
-               </property>
-               <layout class="QHBoxLayout" name="horizontalLayout_4">
-                <item>
-                 <widget class="QRadioButton" name="CAT_7_bit_radio_button">
-                  <property name="text">
-                   <string>Se&amp;ven</string>
-                  </property>
-                  <attribute name="buttonGroup">
-                   <string notr="true">CAT_data_bits_button_group</string>
-                  </attribute>
-                 </widget>
-                </item>
-                <item>
-                 <widget class="QRadioButton" name="CAT_8_bit_radio_button">
-                  <property name="text">
-                   <string>E&amp;ight</string>
-                  </property>
-                  <property name="checked">
-                   <bool>true</bool>
-                  </property>
-                  <attribute name="buttonGroup">
-                   <string notr="true">CAT_data_bits_button_group</string>
-                  </attribute>
-                 </widget>
-                </item>
-               </layout>
               </widget>
              </item>
-             <item>
-              <widget class="QGroupBox" name="CAT_stop_bits_group_box">
+             <item row="0" column="1">
+              <widget class="QComboBox" name="CAT_serial_baud_combo_box">
+               <property name="sizePolicy">
+                <sizepolicy hsizetype="MinimumExpanding" vsizetype="Fixed">
+                 <horstretch>0</horstretch>
+                 <verstretch>0</verstretch>
+                </sizepolicy>
+               </property>
                <property name="toolTip">
-                <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;Number of stop bits used when communicating with your radio's CAT interface&lt;/p&gt;&lt;p&gt;(consult you radio's manual for details).&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+                <string>Serial port data rate which must match the setting of your radio.</string>
                </property>
-               <property name="title">
-                <string>Stop Bits</string>
+               <property name="currentIndex">
+                <number>0</number>
                </property>
-               <layout class="QHBoxLayout" name="horizontalLayout_2">
-                <item>
-                 <widget class="QRadioButton" name="CAT_one_stop_bit_radio_button">
-                  <property name="text">
-                   <string>On&amp;e</string>
-                  </property>
-                  <attribute name="buttonGroup">
-                   <string notr="true">CAT_stop_bits_button_group</string>
-                  </attribute>
-                 </widget>
-                </item>
-                <item>
-                 <widget class="QRadioButton" name="CAT_two_stop_bit_radio_button">
-                  <property name="text">
-                   <string>T&amp;wo</string>
-                  </property>
-                  <property name="checked">
-                   <bool>true</bool>
-                  </property>
-                  <attribute name="buttonGroup">
-                   <string notr="true">CAT_stop_bits_button_group</string>
-                  </attribute>
-                 </widget>
-                </item>
-               </layout>
+               <property name="maxCount">
+                <number>2147483645</number>
+               </property>
+               <item>
+                <property name="text">
+                 <string>1200</string>
+                </property>
+               </item>
+               <item>
+                <property name="text">
+                 <string>2400</string>
+                </property>
+               </item>
+               <item>
+                <property name="text">
+                 <string>4800</string>
+                </property>
+               </item>
+               <item>
+                <property name="text">
+                 <string>9600</string>
+                </property>
+               </item>
+               <item>
+                <property name="text">
+                 <string>19200</string>
+                </property>
+               </item>
+               <item>
+                <property name="text">
+                 <string>38400</string>
+                </property>
+               </item>
+               <item>
+                <property name="text">
+                 <string>57600</string>
+                </property>
+               </item>
+               <item>
+                <property name="text">
+                 <string>115200</string>
+                </property>
+               </item>
               </widget>
              </item>
-             <item>
-              <widget class="QGroupBox" name="CAT_handshake_group_box">
-               <property name="toolTip">
-                <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;Flow control protocol used between this computer and your radio's CAT interface (usually &amp;quot;None&amp;quot; but some require &amp;quot;Hardware&amp;quot;).&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
-               </property>
-               <property name="title">
-                <string>Handshake</string>
-               </property>
-               <layout class="QGridLayout" name="gridLayout_11">
+            </layout>
+           </item>
+           <item>
+            <widget class="QGroupBox" name="CAT_data_bits_group_box">
+             <property name="toolTip">
+              <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;Number of data bits used to communicate with your radio's CAT interface (usually eight).&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+             </property>
+             <property name="title">
+              <string>Data Bits</string>
+             </property>
+             <layout class="QHBoxLayout" name="horizontalLayout_4">
+              <item>
+               <widget class="QRadioButton" name="CAT_7_bit_radio_button">
+                <property name="text">
+                 <string>Se&amp;ven</string>
+                </property>
+                <attribute name="buttonGroup">
+                 <string notr="true">CAT_data_bits_button_group</string>
+                </attribute>
+               </widget>
+              </item>
+              <item>
+               <widget class="QRadioButton" name="CAT_8_bit_radio_button">
+                <property name="text">
+                 <string>E&amp;ight</string>
+                </property>
+                <property name="checked">
+                 <bool>true</bool>
+                </property>
+                <attribute name="buttonGroup">
+                 <string notr="true">CAT_data_bits_button_group</string>
+                </attribute>
+               </widget>
+              </item>
+             </layout>
+            </widget>
+           </item>
+           <item>
+            <widget class="QGroupBox" name="CAT_stop_bits_group_box">
+             <property name="toolTip">
+              <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;Number of stop bits used when communicating with your radio's CAT interface&lt;/p&gt;&lt;p&gt;(consult you radio's manual for details).&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+             </property>
+             <property name="title">
+              <string>Stop Bits</string>
+             </property>
+             <layout class="QHBoxLayout" name="horizontalLayout_2">
+              <item>
+               <widget class="QRadioButton" name="CAT_one_stop_bit_radio_button">
+                <property name="text">
+                 <string>On&amp;e</string>
+                </property>
+                <attribute name="buttonGroup">
+                 <string notr="true">CAT_stop_bits_button_group</string>
+                </attribute>
+               </widget>
+              </item>
+              <item>
+               <widget class="QRadioButton" name="CAT_two_stop_bit_radio_button">
+                <property name="text">
+                 <string>T&amp;wo</string>
+                </property>
+                <property name="checked">
+                 <bool>true</bool>
+                </property>
+                <attribute name="buttonGroup">
+                 <string notr="true">CAT_stop_bits_button_group</string>
+                </attribute>
+               </widget>
+              </item>
+             </layout>
+            </widget>
+           </item>
+           <item>
+            <widget class="QGroupBox" name="CAT_handshake_group_box">
+             <property name="toolTip">
+              <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;Flow control protocol used between this computer and your radio's CAT interface (usually &amp;quot;None&amp;quot; but some require &amp;quot;Hardware&amp;quot;).&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+             </property>
+             <property name="title">
+              <string>Handshake</string>
+             </property>
+             <layout class="QGridLayout" name="gridLayout_11">
+              <item row="0" column="0">
+               <widget class="QRadioButton" name="CAT_handshake_none_radio_button">
+                <property name="text">
+                 <string>&amp;None</string>
+                </property>
+                <property name="checked">
+                 <bool>true</bool>
+                </property>
+                <attribute name="buttonGroup">
+                 <string notr="true">CAT_handshake_button_group</string>
+                </attribute>
+               </widget>
+              </item>
+              <item row="0" column="1">
+               <widget class="QRadioButton" name="CAT_handshake_xon_radio_button">
+                <property name="toolTip">
+                 <string>Software flow control (very rare on CAT interfaces).</string>
+                </property>
+                <property name="text">
+                 <string>XON/XOFF</string>
+                </property>
+                <attribute name="buttonGroup">
+                 <string notr="true">CAT_handshake_button_group</string>
+                </attribute>
+               </widget>
+              </item>
+              <item row="0" column="2">
+               <widget class="QRadioButton" name="CAT_handshake_hardware_radio_button">
+                <property name="toolTip">
+                 <string>Flow control using the RTS and CTS RS-232 control lines
+not often used but some radios have it as an option and 
+a few, particularly some Kenwood rigs, require it).</string>
+                </property>
+                <property name="text">
+                 <string>&amp;Hardware</string>
+                </property>
+                <attribute name="buttonGroup">
+                 <string notr="true">CAT_handshake_button_group</string>
+                </attribute>
+               </widget>
+              </item>
+             </layout>
+            </widget>
+           </item>
+           <item>
+            <widget class="QGroupBox" name="CAT_control_lines_group_box">
+             <property name="toolTip">
+              <string>Special control of CAT port control lines.</string>
+             </property>
+             <property name="title">
+              <string>Force Control Lines</string>
+             </property>
+             <property name="checked">
+              <bool>false</bool>
+             </property>
+             <layout class="QHBoxLayout" name="horizontalLayout_8">
+              <item>
+               <layout class="QFormLayout" name="formLayout_8">
                 <item row="0" column="0">
-                 <widget class="QRadioButton" name="CAT_handshake_none_radio_button">
+                 <widget class="QLabel" name="force_DTR_label">
                   <property name="text">
-                   <string>&amp;None</string>
+                   <string>DTR:</string>
                   </property>
-                  <property name="checked">
-                   <bool>true</bool>
+                  <property name="buddy">
+                   <cstring>force_DTR_combo_box</cstring>
                   </property>
-                  <attribute name="buttonGroup">
-                   <string notr="true">CAT_handshake_button_group</string>
-                  </attribute>
                  </widget>
                 </item>
                 <item row="0" column="1">
-                 <widget class="QRadioButton" name="CAT_handshake_xon_radio_button">
-                  <property name="toolTip">
-                   <string>Software flow control (very rare on CAT interfaces).</string>
-                  </property>
-                  <property name="text">
-                   <string>XON/XOFF</string>
-                  </property>
-                  <attribute name="buttonGroup">
-                   <string notr="true">CAT_handshake_button_group</string>
-                  </attribute>
+                 <widget class="QComboBox" name="force_DTR_combo_box">
+                  <item>
+                   <property name="text">
+                    <string/>
+                   </property>
+                  </item>
+                  <item>
+                   <property name="text">
+                    <string>High</string>
+                   </property>
+                  </item>
+                  <item>
+                   <property name="text">
+                    <string>Low</string>
+                   </property>
+                  </item>
                  </widget>
                 </item>
-                <item row="0" column="2">
-                 <widget class="QRadioButton" name="CAT_handshake_hardware_radio_button">
-                  <property name="toolTip">
-                   <string>Flow control using the RTS and CTS RS-232 control lines
-not often used but some radios have it as an option and 
-a few, particularly some Kenwood rigs, require it).</string>
-                  </property>
+               </layout>
+              </item>
+              <item>
+               <layout class="QFormLayout" name="formLayout_9">
+                <item row="0" column="0">
+                 <widget class="QLabel" name="force_RTS_label">
                   <property name="text">
-                   <string>&amp;Hardware</string>
+                   <string>RTS:</string>
                   </property>
-                  <attribute name="buttonGroup">
-                   <string notr="true">CAT_handshake_button_group</string>
-                  </attribute>
+                  <property name="buddy">
+                   <cstring>force_RTS_combo_box</cstring>
+                  </property>
                  </widget>
                 </item>
-               </layout>
-              </widget>
-             </item>
-             <item>
-              <widget class="QGroupBox" name="CAT_control_lines_group_box">
-               <property name="toolTip">
-                <string>Special control of CAT port control lines.</string>
-               </property>
-               <property name="title">
-                <string>Force Control Lines</string>
-               </property>
-               <property name="checked">
-                <bool>false</bool>
-               </property>
-               <layout class="QHBoxLayout" name="horizontalLayout_8">
-                <item>
-                 <layout class="QFormLayout" name="formLayout_8">
-                  <item row="0" column="0">
-                   <widget class="QLabel" name="force_DTR_label">
-                    <property name="text">
-                     <string>DTR:</string>
-                    </property>
-                    <property name="buddy">
-                     <cstring>force_DTR_combo_box</cstring>
-                    </property>
-                   </widget>
+                <item row="0" column="1">
+                 <widget class="QComboBox" name="force_RTS_combo_box">
+                  <item>
+                   <property name="text">
+                    <string/>
+                   </property>
                   </item>
-                  <item row="0" column="1">
-                   <widget class="QComboBox" name="force_DTR_combo_box">
-                    <item>
-                     <property name="text">
-                      <string/>
-                     </property>
-                    </item>
-                    <item>
-                     <property name="text">
-                      <string>High</string>
-                     </property>
-                    </item>
-                    <item>
-                     <property name="text">
-                      <string>Low</string>
-                     </property>
-                    </item>
-                   </widget>
+                  <item>
+                   <property name="text">
+                    <string>High</string>
+                   </property>
                   </item>
-                 </layout>
-                </item>
-                <item>
-                 <layout class="QFormLayout" name="formLayout_9">
-                  <item row="0" column="0">
-                   <widget class="QLabel" name="force_RTS_label">
-                    <property name="text">
-                     <string>RTS:</string>
-                    </property>
-                    <property name="buddy">
-                     <cstring>force_RTS_combo_box</cstring>
-                    </property>
-                   </widget>
+                  <item>
+                   <property name="text">
+                    <string>Low</string>
+                   </property>
                   </item>
-                  <item row="0" column="1">
-                   <widget class="QComboBox" name="force_RTS_combo_box">
-                    <item>
-                     <property name="text">
-                      <string/>
-                     </property>
-                    </item>
-                    <item>
-                     <property name="text">
-                      <string>High</string>
-                     </property>
-                    </item>
-                    <item>
-                     <property name="text">
-                      <string>Low</string>
-                     </property>
-                    </item>
-                   </widget>
-                  </item>
-                 </layout>
+                 </widget>
                 </item>
                </layout>
-              </widget>
-             </item>
-            </layout>
-           </widget>
-          </item>
-         </layout>
-        </widget>
-       </item>
-       <item row="6" column="2">
-        <widget class="Line" name="line_6">
-         <property name="orientation">
-          <enum>Qt::Horizontal</enum>
-         </property>
-        </widget>
-       </item>
-       <item row="1" column="1" rowspan="12">
-        <widget class="Line" name="line">
-         <property name="orientation">
-          <enum>Qt::Vertical</enum>
-         </property>
-        </widget>
-       </item>
-       <item row="1" column="2">
-        <widget class="QGroupBox" name="PTT_method_group_box">
-         <property name="sizePolicy">
-          <sizepolicy hsizetype="Expanding" vsizetype="Preferred">
-           <horstretch>0</horstretch>
-           <verstretch>0</verstretch>
-          </sizepolicy>
-         </property>
-         <property name="toolTip">
-          <string>How this program activates the PTT on your radio</string>
-         </property>
-         <property name="title">
-          <string>PTT Method</string>
-         </property>
-         <layout class="QGridLayout" name="gridLayout_2">
+              </item>
+             </layout>
+            </widget>
+           </item>
+          </layout>
+         </widget>
+        </item>
+       </layout>
+      </widget>
+      <widget class="Line" name="line_6">
+       <property name="geometry">
+        <rect>
+         <x>331</x>
+         <y>274</y>
+         <width>306</width>
+         <height>16</height>
+        </rect>
+       </property>
+       <property name="orientation">
+        <enum>Qt::Horizontal</enum>
+       </property>
+      </widget>
+      <widget class="Line" name="line">
+       <property name="geometry">
+        <rect>
+         <x>322</x>
+         <y>37</y>
+         <width>16</width>
+         <height>445</height>
+        </rect>
+       </property>
+       <property name="orientation">
+        <enum>Qt::Vertical</enum>
+       </property>
+      </widget>
+      <widget class="QGroupBox" name="PTT_method_group_box">
+       <property name="geometry">
+        <rect>
+         <x>331</x>
+         <y>37</y>
+         <width>121</width>
+         <height>101</height>
+        </rect>
+       </property>
+       <property name="sizePolicy">
+        <sizepolicy hsizetype="Expanding" vsizetype="Preferred">
+         <horstretch>0</horstretch>
+         <verstretch>0</verstretch>
+        </sizepolicy>
+       </property>
+       <property name="toolTip">
+        <string>How this program activates the PTT on your radio</string>
+       </property>
+       <property name="title">
+        <string>PTT Method</string>
+       </property>
+       <layout class="QGridLayout" name="gridLayout_2">
+        <item row="0" column="0">
+         <widget class="QRadioButton" name="PTT_VOX_radio_button">
+          <property name="toolTip">
+           <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;No PTT activation, instead the radio's automatic VOX is used to key the transmitter.&lt;/p&gt;&lt;p&gt;Use this if you have no radio interface hardware.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+          </property>
+          <property name="text">
+           <string>VO&amp;X</string>
+          </property>
+          <attribute name="buttonGroup">
+           <string notr="true">PTT_method_button_group</string>
+          </attribute>
+         </widget>
+        </item>
+        <item row="0" column="1">
+         <widget class="QRadioButton" name="PTT_DTR_radio_button">
+          <property name="toolTip">
+           <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;Use the RS-232 DTR control line to toggle your radio's PTT,&lt;/p&gt;&lt;p&gt;requires hardware to inteface the line.&lt;/p&gt;&lt;p&gt;Some commercial interface units also use this method.&lt;/p&gt;&lt;p&gt;The DTR control line of the CAT serial port may be used for this or&lt;/p&gt;&lt;p&gt;a DTR control line on a different serial port may be used.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+          </property>
+          <property name="text">
+           <string>&amp;DTR</string>
+          </property>
+          <property name="checked">
+           <bool>true</bool>
+          </property>
+          <attribute name="buttonGroup">
+           <string notr="true">PTT_method_button_group</string>
+          </attribute>
+         </widget>
+        </item>
+        <item row="1" column="0">
+         <widget class="QRadioButton" name="PTT_CAT_radio_button">
+          <property name="toolTip">
+           <string>Some radios support PTT via CAT commands,
+use this option if your radio supports it and you have no
+other hardware interface for PTT.</string>
+          </property>
+          <property name="text">
+           <string>C&amp;AT</string>
+          </property>
+          <attribute name="buttonGroup">
+           <string notr="true">PTT_method_button_group</string>
+          </attribute>
+         </widget>
+        </item>
+        <item row="1" column="1">
+         <widget class="QRadioButton" name="PTT_RTS_radio_button">
+          <property name="toolTip">
+           <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;Use the RS-232 RTS control line to toggle your radio's PTT,&lt;/p&gt;&lt;p&gt;requires hardware to inteface the line.&lt;/p&gt;&lt;p&gt;Some commercial interface units also use this method.&lt;/p&gt;&lt;p&gt;The RTS control line of the CAT serial port may be used for this or&lt;/p&gt;&lt;p&gt;a RTS control line on a different serial port may be used.&lt;/p&gt;&lt;p&gt;Note that this options is not available on the CAT serial port&lt;/p&gt;&lt;p&gt;when hardware flow control is used.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+          </property>
+          <property name="text">
+           <string>R&amp;TS</string>
+          </property>
+          <attribute name="buttonGroup">
+           <string notr="true">PTT_method_button_group</string>
+          </attribute>
+         </widget>
+        </item>
+        <item row="2" column="0" rowspan="2" colspan="2">
+         <layout class="QFormLayout" name="formLayout_4">
+          <property name="fieldGrowthPolicy">
+           <enum>QFormLayout::ExpandingFieldsGrow</enum>
+          </property>
           <item row="0" column="0">
-           <widget class="QRadioButton" name="PTT_VOX_radio_button">
-            <property name="toolTip">
-             <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;No PTT activation, instead the radio's automatic VOX is used to key the transmitter.&lt;/p&gt;&lt;p&gt;Use this if you have no radio interface hardware.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
-            </property>
+           <widget class="QLabel" name="PTT_port_label">
             <property name="text">
-             <string>VO&amp;X</string>
+             <string>Port:</string>
             </property>
-            <attribute name="buttonGroup">
-             <string notr="true">PTT_method_button_group</string>
-            </attribute>
+            <property name="buddy">
+             <cstring>PTT_port_combo_box</cstring>
+            </property>
            </widget>
           </item>
           <item row="0" column="1">
-           <widget class="QRadioButton" name="PTT_DTR_radio_button">
+           <widget class="QComboBox" name="PTT_port_combo_box">
+            <property name="sizePolicy">
+             <sizepolicy hsizetype="MinimumExpanding" vsizetype="Fixed">
+              <horstretch>1</horstretch>
+              <verstretch>0</verstretch>
+             </sizepolicy>
+            </property>
             <property name="toolTip">
-             <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;Use the RS-232 DTR control line to toggle your radio's PTT,&lt;/p&gt;&lt;p&gt;requires hardware to inteface the line.&lt;/p&gt;&lt;p&gt;Some commercial interface units also use this method.&lt;/p&gt;&lt;p&gt;The DTR control line of the CAT serial port may be used for this or&lt;/p&gt;&lt;p&gt;a DTR control line on a different serial port may be used.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+             <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;Select the RS-232 serial port utilised for PTT control,&lt;/p&gt;&lt;p&gt;this option is available when DTR or RTS is selected above&lt;/p&gt;&lt;p&gt;as a transmit method.&lt;/p&gt;&lt;p&gt;This port can be the same one as the one used for CAT control.&lt;/p&gt;&lt;p&gt;For some interface types the special value CAT may be chosen,&lt;/p&gt;&lt;p&gt;this is used for non-serial CAT interfaces that can control&lt;/p&gt;&lt;p&gt;serial port control lines remotely (OmniRig for example).&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
             </property>
-            <property name="text">
-             <string>&amp;DTR</string>
-            </property>
-            <property name="checked">
+            <property name="editable">
              <bool>true</bool>
             </property>
-            <attribute name="buttonGroup">
-             <string notr="true">PTT_method_button_group</string>
-            </attribute>
-           </widget>
-          </item>
-          <item row="1" column="0">
-           <widget class="QRadioButton" name="PTT_CAT_radio_button">
-            <property name="toolTip">
-             <string>Some radios support PTT via CAT commands,
-use this option if your radio supports it and you have no
-other hardware interface for PTT.</string>
+            <property name="currentText">
+             <string/>
             </property>
-            <property name="text">
-             <string>C&amp;AT</string>
+            <property name="currentIndex">
+             <number>-1</number>
             </property>
-            <attribute name="buttonGroup">
-             <string notr="true">PTT_method_button_group</string>
-            </attribute>
-           </widget>
-          </item>
-          <item row="1" column="1">
-           <widget class="QRadioButton" name="PTT_RTS_radio_button">
-            <property name="toolTip">
-             <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;Use the RS-232 RTS control line to toggle your radio's PTT,&lt;/p&gt;&lt;p&gt;requires hardware to inteface the line.&lt;/p&gt;&lt;p&gt;Some commercial interface units also use this method.&lt;/p&gt;&lt;p&gt;The RTS control line of the CAT serial port may be used for this or&lt;/p&gt;&lt;p&gt;a RTS control line on a different serial port may be used.&lt;/p&gt;&lt;p&gt;Note that this options is not available on the CAT serial port&lt;/p&gt;&lt;p&gt;when hardware flow control is used.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+            <property name="insertPolicy">
+             <enum>QComboBox::NoInsert</enum>
             </property>
-            <property name="text">
-             <string>R&amp;TS</string>
-            </property>
-            <attribute name="buttonGroup">
-             <string notr="true">PTT_method_button_group</string>
-            </attribute>
            </widget>
           </item>
-          <item row="2" column="0" rowspan="2" colspan="2">
-           <layout class="QFormLayout" name="formLayout_4">
-            <property name="fieldGrowthPolicy">
-             <enum>QFormLayout::ExpandingFieldsGrow</enum>
-            </property>
-            <item row="0" column="0">
-             <widget class="QLabel" name="PTT_port_label">
-              <property name="text">
-               <string>Port:</string>
-              </property>
-              <property name="buddy">
-               <cstring>PTT_port_combo_box</cstring>
-              </property>
-             </widget>
-            </item>
-            <item row="0" column="1">
-             <widget class="QComboBox" name="PTT_port_combo_box">
-              <property name="sizePolicy">
-               <sizepolicy hsizetype="MinimumExpanding" vsizetype="Fixed">
-                <horstretch>1</horstretch>
-                <verstretch>0</verstretch>
-               </sizepolicy>
-              </property>
-              <property name="toolTip">
-               <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;Select the RS-232 serial port utilised for PTT control,&lt;/p&gt;&lt;p&gt;this option is available when DTR or RTS is selected above&lt;/p&gt;&lt;p&gt;as a transmit method.&lt;/p&gt;&lt;p&gt;This port can be the same one as the one used for CAT control.&lt;/p&gt;&lt;p&gt;For some interface types the special value CAT may be chosen,&lt;/p&gt;&lt;p&gt;this is used for non-serial CAT interfaces that can control&lt;/p&gt;&lt;p&gt;serial port control lines remotely (OmniRig for example).&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
-              </property>
-              <property name="editable">
-               <bool>true</bool>
-              </property>
-              <property name="currentText">
-               <string/>
-              </property>
-              <property name="currentIndex">
-               <number>-1</number>
-              </property>
-              <property name="insertPolicy">
-               <enum>QComboBox::NoInsert</enum>
-              </property>
-             </widget>
-            </item>
-           </layout>
-          </item>
          </layout>
-        </widget>
-       </item>
-       <item row="5" column="2">
-        <widget class="QGroupBox" name="mode_group_box">
-         <property name="toolTip">
-          <string>Modulation mode selected on radio.</string>
-         </property>
-         <property name="title">
-          <string>Mode</string>
-         </property>
-         <layout class="QGridLayout" name="gridLayout_10">
-          <item row="0" column="1">
-           <widget class="QRadioButton" name="mode_USB_radio_button">
-            <property name="toolTip">
-             <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;USB is usually the correct modulation mode,&lt;/p&gt;&lt;p&gt;unless the radio has a special data or packet mode setting&lt;/p&gt;&lt;p&gt;for AFSK operation.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
-            </property>
-            <property name="text">
-             <string>US&amp;B</string>
-            </property>
-            <property name="checked">
-             <bool>true</bool>
-            </property>
-            <attribute name="buttonGroup">
-             <string notr="true">TX_mode_button_group</string>
-            </attribute>
-           </widget>
-          </item>
-          <item row="0" column="0">
-           <widget class="QRadioButton" name="mode_none_radio_button">
-            <property name="toolTip">
-             <string>Don't allow the program to set the radio mode
+        </item>
+       </layout>
+      </widget>
+      <widget class="QGroupBox" name="mode_group_box">
+       <property name="geometry">
+        <rect>
+         <x>331</x>
+         <y>218</y>
+         <width>187</width>
+         <height>50</height>
+        </rect>
+       </property>
+       <property name="toolTip">
+        <string>Modulation mode selected on radio.</string>
+       </property>
+       <property name="title">
+        <string>Mode</string>
+       </property>
+       <layout class="QGridLayout" name="gridLayout_10">
+        <item row="0" column="1">
+         <widget class="QRadioButton" name="mode_USB_radio_button">
+          <property name="toolTip">
+           <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;USB is usually the correct modulation mode,&lt;/p&gt;&lt;p&gt;unless the radio has a special data or packet mode setting&lt;/p&gt;&lt;p&gt;for AFSK operation.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+          </property>
+          <property name="text">
+           <string>US&amp;B</string>
+          </property>
+          <property name="checked">
+           <bool>true</bool>
+          </property>
+          <attribute name="buttonGroup">
+           <string notr="true">TX_mode_button_group</string>
+          </attribute>
+         </widget>
+        </item>
+        <item row="0" column="0">
+         <widget class="QRadioButton" name="mode_none_radio_button">
+          <property name="toolTip">
+           <string>Don't allow the program to set the radio mode
 (not recommended but use if the wrong mode
 or bandwidth is selected).</string>
-            </property>
-            <property name="text">
-             <string>None</string>
-            </property>
-            <attribute name="buttonGroup">
-             <string notr="true">TX_mode_button_group</string>
-            </attribute>
-           </widget>
-          </item>
-          <item row="0" column="2">
-           <widget class="QRadioButton" name="mode_data_radio_button">
-            <property name="toolTip">
-             <string>If this is availabe then it is usually the correct mode for this program.</string>
-            </property>
-            <property name="text">
-             <string>Data/P&amp;kt</string>
-            </property>
-            <attribute name="buttonGroup">
-             <string notr="true">TX_mode_button_group</string>
-            </attribute>
-           </widget>
-          </item>
-         </layout>
-        </widget>
-       </item>
-       <item row="3" column="2">
-        <widget class="QGroupBox" name="TX_audio_source_group_box">
-         <property name="toolTip">
-          <string>Some radios can select the audio input using a CAT command,
+          </property>
+          <property name="text">
+           <string>None</string>
+          </property>
+          <attribute name="buttonGroup">
+           <string notr="true">TX_mode_button_group</string>
+          </attribute>
+         </widget>
+        </item>
+        <item row="0" column="2">
+         <widget class="QRadioButton" name="mode_data_radio_button">
+          <property name="toolTip">
+           <string>If this is availabe then it is usually the correct mode for this program.</string>
+          </property>
+          <property name="text">
+           <string>Data/P&amp;kt</string>
+          </property>
+          <attribute name="buttonGroup">
+           <string notr="true">TX_mode_button_group</string>
+          </attribute>
+         </widget>
+        </item>
+       </layout>
+      </widget>
+      <widget class="QGroupBox" name="TX_audio_source_group_box">
+       <property name="geometry">
+        <rect>
+         <x>331</x>
+         <y>153</y>
+         <width>167</width>
+         <height>50</height>
+        </rect>
+       </property>
+       <property name="toolTip">
+        <string>Some radios can select the audio input using a CAT command,
 this setting allows you to select which audio input will be used
 (if it is available then generally the Rear/Data option is best).</string>
-         </property>
-         <property name="title">
-          <string>Transmit Audio Source</string>
-         </property>
-         <layout class="QGridLayout" name="gridLayout_7">
-          <item row="0" column="0">
-           <widget class="QRadioButton" name="TX_source_data_radio_button">
-            <property name="text">
-             <string>Rear&amp;/Data</string>
-            </property>
-            <attribute name="buttonGroup">
-             <string notr="true">TX_audio_source_button_group</string>
-            </attribute>
-           </widget>
-          </item>
-          <item row="0" column="1">
-           <widget class="QRadioButton" name="TX_source_mic_radio_button">
-            <property name="text">
-             <string>&amp;Front/Mic</string>
-            </property>
-            <property name="checked">
-             <bool>true</bool>
-            </property>
-            <attribute name="buttonGroup">
-             <string notr="true">TX_audio_source_button_group</string>
-            </attribute>
-           </widget>
-          </item>
-         </layout>
-        </widget>
-       </item>
-       <item row="9" column="2">
-        <spacer name="verticalSpacer_2">
-         <property name="orientation">
-          <enum>Qt::Vertical</enum>
-         </property>
-         <property name="sizeHint" stdset="0">
-          <size>
-           <width>20</width>
-           <height>40</height>
-          </size>
-         </property>
-        </spacer>
-       </item>
-       <item row="2" column="2">
-        <widget class="Line" name="line_3">
-         <property name="orientation">
-          <enum>Qt::Horizontal</enum>
-         </property>
-        </widget>
-       </item>
-       <item row="11" column="2">
-        <spacer name="verticalSpacer_7">
-         <property name="orientation">
-          <enum>Qt::Vertical</enum>
-         </property>
-         <property name="sizeHint" stdset="0">
-          <size>
-           <width>20</width>
-           <height>40</height>
-          </size>
-         </property>
-        </spacer>
-       </item>
-       <item row="0" column="0" colspan="3">
-        <layout class="QHBoxLayout" name="horizontalLayout_7">
-         <item>
-          <widget class="QLabel" name="rig_label">
+       </property>
+       <property name="title">
+        <string>Transmit Audio Source</string>
+       </property>
+       <layout class="QGridLayout" name="gridLayout_7">
+        <item row="0" column="0">
+         <widget class="QRadioButton" name="TX_source_data_radio_button">
+          <property name="text">
+           <string>Rear&amp;/Data</string>
+          </property>
+          <attribute name="buttonGroup">
+           <string notr="true">TX_audio_source_button_group</string>
+          </attribute>
+         </widget>
+        </item>
+        <item row="0" column="1">
+         <widget class="QRadioButton" name="TX_source_mic_radio_button">
+          <property name="text">
+           <string>&amp;Front/Mic</string>
+          </property>
+          <property name="checked">
+           <bool>true</bool>
+          </property>
+          <attribute name="buttonGroup">
+           <string notr="true">TX_audio_source_button_group</string>
+          </attribute>
+         </widget>
+        </item>
+       </layout>
+      </widget>
+      <widget class="Line" name="line_3">
+       <property name="geometry">
+        <rect>
+         <x>331</x>
+         <y>144</y>
+         <width>306</width>
+         <height>16</height>
+        </rect>
+       </property>
+       <property name="orientation">
+        <enum>Qt::Horizontal</enum>
+       </property>
+      </widget>
+      <widget class="Line" name="line_4">
+       <property name="geometry">
+        <rect>
+         <x>331</x>
+         <y>209</y>
+         <width>306</width>
+         <height>16</height>
+        </rect>
+       </property>
+       <property name="orientation">
+        <enum>Qt::Horizontal</enum>
+       </property>
+      </widget>
+      <widget class="QGroupBox" name="split_operation_group_box">
+       <property name="geometry">
+        <rect>
+         <x>330</x>
+         <y>290</y>
+         <width>306</width>
+         <height>71</height>
+        </rect>
+       </property>
+       <property name="sizePolicy">
+        <sizepolicy hsizetype="Expanding" vsizetype="Preferred">
+         <horstretch>0</horstretch>
+         <verstretch>0</verstretch>
+        </sizepolicy>
+       </property>
+       <property name="title">
+        <string>Split Operation</string>
+       </property>
+       <widget class="QRadioButton" name="split_none_radio_button">
+        <property name="geometry">
+         <rect>
+          <x>10</x>
+          <y>20</y>
+          <width>48</width>
+          <height>17</height>
+         </rect>
+        </property>
+        <property name="text">
+         <string>None</string>
+        </property>
+        <property name="checked">
+         <bool>true</bool>
+        </property>
+        <attribute name="buttonGroup">
+         <string notr="true">split_mode_button_group</string>
+        </attribute>
+       </widget>
+       <widget class="QRadioButton" name="split_rig_radio_button">
+        <property name="geometry">
+         <rect>
+          <x>107</x>
+          <y>20</y>
+          <width>38</width>
+          <height>17</height>
+         </rect>
+        </property>
+        <property name="text">
+         <string>Rig</string>
+        </property>
+        <attribute name="buttonGroup">
+         <string notr="true">split_mode_button_group</string>
+        </attribute>
+       </widget>
+       <widget class="QRadioButton" name="split_emulate_radio_button">
+        <property name="geometry">
+         <rect>
+          <x>205</x>
+          <y>20</y>
+          <width>56</width>
+          <height>17</height>
+         </rect>
+        </property>
+        <property name="text">
+         <string>Fake It</string>
+        </property>
+        <attribute name="buttonGroup">
+         <string notr="true">split_mode_button_group</string>
+        </attribute>
+       </widget>
+       <widget class="QWidget" name="">
+        <property name="geometry">
+         <rect>
+          <x>10</x>
+          <y>42</y>
+          <width>129</width>
+          <height>22</height>
+         </rect>
+        </property>
+        <layout class="QFormLayout" name="formLayout_10">
+         <item row="0" column="0">
+          <widget class="QLabel" name="split_resolution_label">
+           <property name="sizePolicy">
+            <sizepolicy hsizetype="Preferred" vsizetype="Preferred">
+             <horstretch>0</horstretch>
+             <verstretch>0</verstretch>
+            </sizepolicy>
+           </property>
            <property name="text">
-            <string>Rig:</string>
+            <string>Split Resolution:</string>
            </property>
            <property name="buddy">
-            <cstring>rig_combo_box</cstring>
+            <cstring>PTT_port_combo_box</cstring>
            </property>
           </widget>
          </item>
-         <item>
-          <widget class="QComboBox" name="rig_combo_box">
+         <item row="0" column="1">
+          <widget class="QComboBox" name="split_resolution_combo_box">
+           <property name="enabled">
+            <bool>true</bool>
+           </property>
            <property name="sizePolicy">
-            <sizepolicy hsizetype="Preferred" vsizetype="Fixed">
+            <sizepolicy hsizetype="Fixed" vsizetype="Fixed">
              <horstretch>1</horstretch>
              <verstretch>0</verstretch>
             </sizepolicy>
            </property>
-          </widget>
-         </item>
-         <item>
-          <widget class="QLabel" name="CAT_poll_interval_label">
-           <property name="text">
-            <string>Poll Interval:</string>
+           <property name="toolTip">
+            <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;Audio base freq computation of split offset.&lt;/p&gt;&lt;p&gt;You should use the best (e.g. 1) resolution your rig supports.  e.g. Freq=1 means your tuner never has to retune when you change offset&lt;/p&gt;&lt;p&gt;500 - audio starts in 1500-2000Hz range.&lt;/p&gt;&lt;p&gt;100 - audio starts in 1500-1600 range.&lt;/p&gt;&lt;p&gt;10 - audio starts in 1500-1510 range.&lt;/p&gt;&lt;p&gt;1 audio starts at 1500&lt;/body&gt;&lt;/html&gt;</string>
            </property>
-           <property name="buddy">
-            <cstring>CAT_poll_interval_spin_box</cstring>
+           <property name="editable">
+            <bool>false</bool>
            </property>
-          </widget>
-         </item>
-         <item>
-          <widget class="QSpinBox" name="CAT_poll_interval_spin_box">
-           <property name="suffix">
-            <string> s</string>
+           <property name="insertPolicy">
+            <enum>QComboBox::InsertAtBottom</enum>
            </property>
-           <property name="minimum">
-            <number>1</number>
+           <property name="minimumContentsLength">
+            <number>0</number>
            </property>
+           <item>
+            <property name="text">
+             <string>500</string>
+            </property>
+           </item>
+           <item>
+            <property name="text">
+             <string>100</string>
+            </property>
+           </item>
+           <item>
+            <property name="text">
+             <string>10</string>
+            </property>
+           </item>
+           <item>
+            <property name="text">
+             <string>1</string>
+            </property>
+           </item>
           </widget>
          </item>
         </layout>
-       </item>
-       <item row="4" column="2">
-        <widget class="Line" name="line_4">
-         <property name="orientation">
-          <enum>Qt::Horizontal</enum>
-         </property>
-        </widget>
-       </item>
-       <item row="10" column="2">
-        <layout class="QHBoxLayout" name="horizontalLayout_11">
-         <item>
-          <widget class="QPushButton" name="test_CAT_push_button">
-           <property name="toolTip">
-            <string>Attempt to connect to the radio with these settings.
+       </widget>
+      </widget>
+      <widget class="QWidget" name="">
+       <layout class="QHBoxLayout" name="horizontalLayout_7">
+        <item>
+         <widget class="QLabel" name="rig_label">
+          <property name="text">
+           <string>Rig:</string>
+          </property>
+          <property name="buddy">
+           <cstring>rig_combo_box</cstring>
+          </property>
+         </widget>
+        </item>
+        <item>
+         <widget class="QComboBox" name="rig_combo_box">
+          <property name="sizePolicy">
+           <sizepolicy hsizetype="Preferred" vsizetype="Fixed">
+            <horstretch>1</horstretch>
+            <verstretch>0</verstretch>
+           </sizepolicy>
+          </property>
+         </widget>
+        </item>
+        <item>
+         <widget class="QLabel" name="CAT_poll_interval_label">
+          <property name="text">
+           <string>Poll Interval:</string>
+          </property>
+          <property name="buddy">
+           <cstring>CAT_poll_interval_spin_box</cstring>
+          </property>
+         </widget>
+        </item>
+        <item>
+         <widget class="QSpinBox" name="CAT_poll_interval_spin_box">
+          <property name="suffix">
+           <string> s</string>
+          </property>
+          <property name="minimum">
+           <number>1</number>
+          </property>
+         </widget>
+        </item>
+       </layout>
+      </widget>
+      <widget class="QWidget" name="">
+       <property name="geometry">
+        <rect>
+         <x>331</x>
+         <y>356</y>
+         <width>206</width>
+         <height>119</height>
+        </rect>
+       </property>
+       <layout class="QVBoxLayout" name="verticalLayout_13">
+        <item>
+         <spacer name="verticalSpacer_2">
+          <property name="orientation">
+           <enum>Qt::Vertical</enum>
+          </property>
+          <property name="sizeHint" stdset="0">
+           <size>
+            <width>20</width>
+            <height>40</height>
+           </size>
+          </property>
+         </spacer>
+        </item>
+        <item>
+         <layout class="QHBoxLayout" name="horizontalLayout_11">
+          <item>
+           <widget class="QPushButton" name="test_CAT_push_button">
+            <property name="toolTip">
+             <string>Attempt to connect to the radio with these settings.
 Another dialog will pop up where you can verify correct operation.</string>
-           </property>
-           <property name="text">
-            <string>Test CAT</string>
-           </property>
-          </widget>
-         </item>
-         <item>
-          <spacer name="horizontalSpacer_3">
-           <property name="orientation">
-            <enum>Qt::Horizontal</enum>
-           </property>
-           <property name="sizeType">
-            <enum>QSizePolicy::Preferred</enum>
-           </property>
-           <property name="sizeHint" stdset="0">
-            <size>
-             <width>40</width>
-             <height>20</height>
-            </size>
-           </property>
-          </spacer>
-         </item>
-         <item>
-          <widget class="QPushButton" name="test_PTT_push_button">
-           <property name="toolTip">
-            <string>Attempt to activate the transmitter.
+            </property>
+            <property name="text">
+             <string>Test CAT</string>
+            </property>
+           </widget>
+          </item>
+          <item>
+           <spacer name="horizontalSpacer_3">
+            <property name="orientation">
+             <enum>Qt::Horizontal</enum>
+            </property>
+            <property name="sizeType">
+             <enum>QSizePolicy::Preferred</enum>
+            </property>
+            <property name="sizeHint" stdset="0">
+             <size>
+              <width>40</width>
+              <height>20</height>
+             </size>
+            </property>
+           </spacer>
+          </item>
+          <item>
+           <widget class="QPushButton" name="test_PTT_push_button">
+            <property name="toolTip">
+             <string>Attempt to activate the transmitter.
 Click again to deactivate. Normally no power should be
 output since there is no audio being generated at this time.
 Check that any Tx indication on your radio and/or your
 radio interface behave as expected.</string>
-           </property>
-           <property name="styleSheet">
-            <string notr="true">QPushButton:checked {
+            </property>
+            <property name="styleSheet">
+             <string notr="true">QPushButton:checked {
 	background-color: red;
 	border-style	: outset;
 	border-width: 1px;
@@ -1111,73 +1301,32 @@
 	min-width: 5em;
 	padding: 3px;
 }</string>
-           </property>
-           <property name="text">
-            <string>Test PTT</string>
-           </property>
-           <property name="checkable">
-            <bool>true</bool>
-           </property>
-          </widget>
-         </item>
-        </layout>
-       </item>
-       <item row="8" column="2">
-        <widget class="QGroupBox" name="split_operation_group_box">
-         <property name="title">
-          <string>Split Operation</string>
-         </property>
-         <layout class="QGridLayout" name="gridLayout_12">
-          <item row="0" column="0">
-           <widget class="QRadioButton" name="split_none_radio_button">
+            </property>
             <property name="text">
-             <string>None</string>
+             <string>Test PTT</string>
             </property>
-            <property name="checked">
+            <property name="checkable">
              <bool>true</bool>
             </property>
-            <attribute name="buttonGroup">
-             <string notr="true">split_mode_button_group</string>
-            </attribute>
            </widget>
           </item>
-          <item row="0" column="1">
-           <widget class="QRadioButton" name="split_rig_radio_button">
-            <property name="text">
-             <string>Rig</string>
-            </property>
-            <attribute name="buttonGroup">
-             <string notr="true">split_mode_button_group</string>
-            </attribute>
-           </widget>
-          </item>
-          <item row="0" column="2">
-           <widget class="QRadioButton" name="split_emulate_radio_button">
-            <property name="text">
-             <string>Fake It</string>
-            </property>
-            <attribute name="buttonGroup">
-             <string notr="true">split_mode_button_group</string>
-            </attribute>
-           </widget>
-          </item>
          </layout>
-        </widget>
-       </item>
-       <item row="12" column="0">
-        <spacer name="verticalSpacer_5">
-         <property name="orientation">
-          <enum>Qt::Vertical</enum>
-         </property>
-         <property name="sizeHint" stdset="0">
-          <size>
-           <width>20</width>
-           <height>40</height>
-          </size>
-         </property>
-        </spacer>
-       </item>
-      </layout>
+        </item>
+        <item>
+         <spacer name="verticalSpacer_7">
+          <property name="orientation">
+           <enum>Qt::Vertical</enum>
+          </property>
+          <property name="sizeHint" stdset="0">
+           <size>
+            <width>20</width>
+            <height>40</height>
+           </size>
+          </property>
+         </spacer>
+        </item>
+       </layout>
+      </widget>
      </widget>
      <widget class="QWidget" name="audio_tab">
       <attribute name="title">
@@ -2491,12 +2640,12 @@
   </connection>
  </connections>
  <buttongroups>
+  <buttongroup name="CAT_stop_bits_button_group"/>
   <buttongroup name="split_mode_button_group"/>
-  <buttongroup name="TX_mode_button_group"/>
+  <buttongroup name="CAT_handshake_button_group"/>
+  <buttongroup name="CAT_data_bits_button_group"/>
   <buttongroup name="PTT_method_button_group"/>
   <buttongroup name="TX_audio_source_button_group"/>
-  <buttongroup name="CAT_stop_bits_button_group"/>
-  <buttongroup name="CAT_handshake_button_group"/>
-  <buttongroup name="CAT_data_bits_button_group"/>
+  <buttongroup name="TX_mode_button_group"/>
  </buttongroups>
 </ui>
Index: mainwindow.cpp
===================================================================
--- mainwindow.cpp	(revision 6343)
+++ mainwindow.cpp	(working copy)
@@ -4151,7 +4151,7 @@
     // m_bSimplex is false, so we can use split mode if requested
     if (m_config.split_mode () && m_mode != "JT4") {
       // Don't use XIT in JT4, we may be using Doppler control
-      m_XIT=(n/500)*500 - 1500;
+      m_XIT=(n/m_config.split_resolution())*m_config.split_resolution() - 1500;
     }
 
     if (m_monitoring || m_transmitting) {
