diff --git a/rigcommander.cpp b/rigcommander.cpp
index 9122449..03537dc 100644
--- a/rigcommander.cpp
+++ b/rigcommander.cpp
@@ -557,18 +557,24 @@ void rigCommander::getSpectrumMode()
     prepDataAndSend(specModePayload);
 }
 
-void rigCommander::setFrequency(freqt freq)
+void rigCommander::setFrequency(unsigned char vfo, freqt freq)
 {
-    //QByteArray freqPayload = makeFreqPayload(freq);
     QByteArray freqPayload = makeFreqPayload(freq);
     QByteArray cmdPayload;
 
     cmdPayload.append(freqPayload);
-    cmdPayload.prepend('\x00');
-
+    if (vfo == 0) {
+        rigState.vfoAFreq = freq;
+        cmdPayload.prepend('\x00');
+    }
+    else
+    {   
+        rigState.vfoBFreq = freq;
+        cmdPayload.prepend(vfo);
+        cmdPayload.prepend('\x25');
+    }
     //printHex(cmdPayload, false, true);
     prepDataAndSend(cmdPayload);
-    rigState.vfoAFreq = freq;
 }
 
 QByteArray rigCommander::makeFreqPayload(freqt freq)
diff --git a/rigcommander.h b/rigcommander.h
index 1de8bc3..1486028 100644
--- a/rigcommander.h
+++ b/rigcommander.h
@@ -171,7 +171,7 @@ public slots:
     void getScopeMode();
 
     // Frequency, Mode, BSR:
-    void setFrequency(freqt freq);
+    void setFrequency(unsigned char vfo, freqt freq);
     void getFrequency();
     void setMode(unsigned char mode, unsigned char modeFilter);
     void setMode(mode_info);
diff --git a/rigctld.cpp b/rigctld.cpp
index 4879728..27dd6c3 100644
--- a/rigctld.cpp
+++ b/rigctld.cpp
@@ -57,7 +57,7 @@ rigCtlD::~rigCtlD()
 
 void rigCtlD::receiveFrequency(freqt freq)
 {
-    emit setFrequency(freq);
+    emit setFrequency(0, freq);
 }
 
 void rigCtlD::receiveStateInfo(rigStateStruct* state)
@@ -301,7 +301,7 @@ void rigCtlClient::socketReadyRead()
             if (ok) {
                 freq.Hz = static_cast<int>(newFreq);
                 qDebug(logRigCtlD()) << QString("Set frequency: %1 (%2)").arg(freq.Hz).arg(command[1]);
-                emit parent->setFrequency(freq);
+                emit parent->setFrequency(0, freq);
             }
         }
         else if (command[0] == "1" || command[0] == "dump_caps")
@@ -465,21 +465,46 @@ void rigCtlClient::socketReadyRead()
             }
             response.append(resp);
         }
-        else if (command[0] == "I" || command[0] == "set_split_freq")
+        else if (command.length() > 1 && command[0] == "I" || command[0] == "set_split_freq")
         {
             setCommand = true;
+            freqt freq;
+            bool ok = false;
+            double newFreq = 0.0f;
+            newFreq = command[1].toDouble(&ok);
+            if (ok) {
+                freq.Hz = static_cast<int>(newFreq);
+                qDebug(logRigCtlD()) << QString("set_split_freq: %1 (%2)").arg(freq.Hz).arg(command[1]);
+                emit parent->setFrequency(1, freq);
+            }
         }
-        else if (command[0] == "m" || command[0] == "get_mode")
+        else if (command.length() > 2 && (command[0] == "X" || command[0] == "set_split_mode"))
         {
+            setCommand = true;
+            }
+            else if (command.length() > 0 && (command[0] == "x" || command[0] == "get_split_mode"))
+            {
             if (longReply) {
-                response.append(QString("Mode: %1").arg(getMode(rigState->mode, rigState->datamode)));
-                response.append(QString("Passband: %1").arg(getFilter(rigState->mode, rigState->filter)));
+                response.append(QString("TX Mode: %1").arg(getMode(rigState->mode, rigState->datamode)));
+                response.append(QString("TX Passband: %1").arg(getFilter(rigState->mode, rigState->filter)));
             }
             else {
                 response.append(QString("%1").arg(getMode(rigState->mode, rigState->datamode)));
                 response.append(QString("%1").arg(getFilter(rigState->mode, rigState->filter)));
             }
         }
+
+        else if (command[0] == "m" || command[0] == "get_mode")
+        {
+        if (longReply) {
+            response.append(QString("Mode: %1").arg(getMode(rigState->mode, rigState->datamode)));
+            response.append(QString("Passband: %1").arg(getFilter(rigState->mode, rigState->filter)));
+        }
+        else {
+            response.append(QString("%1").arg(getMode(rigState->mode, rigState->datamode)));
+            response.append(QString("%1").arg(getFilter(rigState->mode, rigState->filter)));
+        }
+        }
         else if (command[0] == "M" || command[0] == "set_mode")
         {
             // Set mode
@@ -973,8 +998,8 @@ void rigCtlClient::socketReadyRead()
         }
         else if (command.length() > 1 && (command[0] == 0x87 || command[0] == "set_powerstat"))
         {
-            setCommand = true;
-            if (command[1] == "0")
+        setCommand = true;
+        if (command[1] == "0")
             {
                 emit parent->sendPowerOff();
             }
diff --git a/rigctld.h b/rigctld.h
index 51f3698..0b71fa9 100644
--- a/rigctld.h
+++ b/rigctld.h
@@ -336,7 +336,7 @@ signals:
     void onStarted();
     void onStopped();
     void sendData(QString data);
-    void setFrequency(freqt freq);
+    void setFrequency(unsigned char vfo, freqt freq);
     void setPTT(bool state);
     void setMode(unsigned char mode, unsigned char modeFilter);
     void setDataMode(bool dataOn, unsigned char modeFilter);
diff --git a/wfmain.cpp b/wfmain.cpp
index e8455af..8e93e07 100644
--- a/wfmain.cpp
+++ b/wfmain.cpp
@@ -273,7 +273,7 @@ void wfmain::rigConnections()
     connect(this, SIGNAL(setScopeMode(spectrumMode)), rig, SLOT(setSpectrumMode(spectrumMode)));
     connect(this, SIGNAL(getScopeMode()), rig, SLOT(getScopeMode()));
 
-    connect(this, SIGNAL(setFrequency(freqt)), rig, SLOT(setFrequency(freqt)));
+    connect(this, SIGNAL(setFrequency(unsigned char, freqt)), rig, SLOT(setFrequency(unsigned char, freqt)));
     connect(this, SIGNAL(setScopeEdge(char)), rig, SLOT(setScopeEdge(char)));
     connect(this, SIGNAL(setScopeSpan(char)), rig, SLOT(setScopeSpan(char)));
     //connect(this, SIGNAL(getScopeMode()), rig, SLOT(getScopeMode()));
@@ -400,7 +400,7 @@ void wfmain::makeRig()
         if (rigCtl != Q_NULLPTR) {
             connect(rig, SIGNAL(stateInfo(rigStateStruct*)), rigCtl, SLOT(receiveStateInfo(rigStateStruct*)));
             connect(this, SIGNAL(requestRigState()), rig, SLOT(sendState()));
-            connect(rigCtl, SIGNAL(setFrequency(freqt)), rig, SLOT(setFrequency(freqt)));
+            connect(rigCtl, SIGNAL(setFrequency(unsigned char, freqt)), rig, SLOT(setFrequency(unsigned char, freqt)));
             connect(rigCtl, SIGNAL(setMode(unsigned char, unsigned char)), rig, SLOT(setMode(unsigned char, unsigned char)));
             connect(rigCtl, SIGNAL(setDataMode(bool, unsigned char)), rig, SLOT(setDataMode(bool, unsigned char)));
             connect(rigCtl, SIGNAL(setPTT(bool)), rig, SLOT(setPTT(bool)));
@@ -2011,7 +2011,7 @@ void wfmain::shortcutMinus()
 
     f.MHzDouble = f.Hz / (double)1E6;
     setUIFreq();
-    //emit setFrequency(f);
+    //emit setFrequency(0,f);
     issueCmd(cmdSetFreq, f);
     issueDelayedCommandUnique(cmdGetFreq);
 }
@@ -2025,7 +2025,7 @@ void wfmain::shortcutPlus()
 
     f.MHzDouble = f.Hz / (double)1E6;
     setUIFreq();
-    //emit setFrequency(f);
+    //emit setFrequency(0,f);
     issueCmd(cmdSetFreq, f);
     issueDelayedCommandUnique(cmdGetFreq);
 }
@@ -2039,7 +2039,7 @@ void wfmain::shortcutShiftMinus()
 
     f.MHzDouble = f.Hz / (double)1E6;
     setUIFreq();
-    //emit setFrequency(f);
+    //emit setFrequency(0,f);
     issueCmd(cmdSetFreq, f);
     issueDelayedCommandUnique(cmdGetFreq);
 }
@@ -2053,7 +2053,7 @@ void wfmain::shortcutShiftPlus()
 
     f.MHzDouble = f.Hz / (double)1E6;
     setUIFreq();
-    //emit setFrequency(f);
+    //emit setFrequency(0,f);
     issueCmd(cmdSetFreq, f);
     issueDelayedCommandUnique(cmdGetFreq);
 }
@@ -2067,7 +2067,7 @@ void wfmain::shortcutControlMinus()
 
     f.MHzDouble = f.Hz / (double)1E6;
     setUIFreq();
-    //emit setFrequency(f);
+    //emit setFrequency(0,f);
     issueCmd(cmdSetFreq, f);
     issueDelayedCommandUnique(cmdGetFreq);
 }
@@ -2081,7 +2081,7 @@ void wfmain::shortcutControlPlus()
 
     f.MHzDouble = f.Hz / (double)1E6;
     setUIFreq();
-    //emit setFrequency(f);
+    //emit setFrequency(0,f);
     issueCmd(cmdSetFreq, f);
     issueDelayedCommandUnique(cmdGetFreq);
 }
@@ -2095,7 +2095,7 @@ void wfmain::shortcutPageUp()
 
     f.MHzDouble = f.Hz / (double)1E6;
     setUIFreq();
-    //emit setFrequency(f);
+    //emit setFrequency(0,f);
     issueCmd(cmdSetFreq, f);
     issueDelayedCommandUnique(cmdGetFreq);
 }
@@ -2109,7 +2109,7 @@ void wfmain::shortcutPageDown()
 
     f.MHzDouble = f.Hz / (double)1E6;
     setUIFreq();
-    //emit setFrequency(f);
+    //emit setFrequency(0,f);
     issueCmd(cmdSetFreq, f);
     issueDelayedCommandUnique(cmdGetFreq);
 }
@@ -2350,7 +2350,7 @@ void wfmain::doCmd(commandtype cmddata)
         {
             lastFreqCmdTime_ms = QDateTime::currentMSecsSinceEpoch();
             freqt f = (*std::static_pointer_cast<freqt>(data));
-            emit setFrequency(f);
+            emit setFrequency(0,f);
             break;
         }
         case cmdSetMode:
@@ -3041,6 +3041,7 @@ void wfmain::initPeriodicCommands()
     if (rigCaps.hasRXAntenna) {
         insertSlowPeriodicCommand(cmdGetAntenna, 128);
     }
+    insertSlowPeriodicCommand(cmdGetDuplexMode, 128);
 }
 
 void wfmain::insertPeriodicCommand(cmds cmd, unsigned char priority)
@@ -3261,7 +3262,7 @@ void wfmain::handlePlotDoubleClick(QMouseEvent *me)
         freqGo.Hz = roundFrequency(freqGo.Hz, tsWfScrollHz);
         freqGo.MHzDouble = (float)freqGo.Hz / 1E6;
 
-        //emit setFrequency(freq);
+        //emit setFrequency(0,freq);
         issueCmd(cmdSetFreq, freqGo);
         freq = freqGo;
         setUIFreq();
@@ -3286,7 +3287,7 @@ void wfmain::handleWFDoubleClick(QMouseEvent *me)
         freqGo.Hz = roundFrequency(freqGo.Hz, tsWfScrollHz);
         freqGo.MHzDouble = (float)freqGo.Hz / 1E6;
 
-        //emit setFrequency(freq);
+        //emit setFrequency(0,freq);
         issueCmd(cmdSetFreq, freqGo);
         freq = freqGo;
         setUIFreq();
@@ -3341,7 +3342,7 @@ void wfmain::handleWFScroll(QWheelEvent *we)
     f.MHzDouble = f.Hz / (double)1E6;
     freq = f;
 
-    //emit setFrequency(f);
+    //emit setFrequency(0,f);
     issueCmdUniquePriority(cmdSetFreq, f);
     ui->freqLabel->setText(QString("%1").arg(f.MHzDouble, 0, 'f'));
     //issueDelayedCommandUnique(cmdGetFreq);
@@ -3758,7 +3759,7 @@ void wfmain::on_freqDial_valueChanged(int value)
 
         ui->freqLabel->setText(QString("%1").arg(f.MHzDouble, 0, 'f'));
 
-        //emit setFrequency(f);
+        //emit setFrequency(0,f);
         issueCmdUniquePriority(cmdSetFreq, f);
     } else {
         ui->freqDial->blockSignals(true);
@@ -3773,7 +3774,7 @@ void wfmain::receiveBandStackReg(freqt freqGo, char mode, char filter, bool data
     // read the band stack and apply by sending out commands
 
     qInfo(logSystem()) << __func__ << "BSR received into main: Freq: " << freqGo.Hz << ", mode: " << (unsigned int)mode << ", filter: " << (unsigned int)filter << ", data mode: " << dataOn;
-    //emit setFrequency(freq);
+    //emit setFrequency(0,freq);
     issueCmd(cmdSetFreq, freqGo);
     setModeVal = (unsigned char) mode;
     setFilterVal = (unsigned char) filter;
@@ -3843,7 +3844,7 @@ void wfmain::on_band4mbtn_clicked()
         f.Hz = (70.200) * 1E6;
     }
     issueCmd(cmdSetFreq, f);
-    //emit setFrequency(f);
+    //emit setFrequency(0,f);
     issueDelayedCommandUnique(cmdGetFreq);
     ui->tabWidget->setCurrentIndex(0);
 }
@@ -3910,7 +3911,7 @@ void wfmain::on_band60mbtn_clicked()
     freqt f;
     f.Hz = (5.3305) * 1E6;
     issueCmd(cmdSetFreq, f);
-    //emit setFrequency(f);
+    //emit setFrequency(0,f);
     issueDelayedCommandUnique(cmdGetFreq);
     ui->tabWidget->setCurrentIndex(0);
 }
@@ -3931,7 +3932,7 @@ void wfmain::on_band630mbtn_clicked()
 {
     freqt f;
     f.Hz = 475 * 1E3;
-    //emit setFrequency(f);
+    //emit setFrequency(0,f);
     issueCmd(cmdSetFreq, f);
     issueDelayedCommandUnique(cmdGetFreq);
     ui->tabWidget->setCurrentIndex(0);
@@ -3941,7 +3942,7 @@ void wfmain::on_band2200mbtn_clicked()
 {
     freqt f;
     f.Hz = 136 * 1E3;
-    //emit setFrequency(f);
+    //emit setFrequency(0,f);
     issueCmd(cmdSetFreq, f);
     issueDelayedCommandUnique(cmdGetFreq);
     ui->tabWidget->setCurrentIndex(0);
@@ -5296,7 +5297,7 @@ void wfmain::on_enableRigctldChk_clicked(bool checked)
         if (rig != Q_NULLPTR) {
             // We are already connected to a rig.
             connect(rig, SIGNAL(stateInfo(rigStateStruct*)), rigCtl, SLOT(receiveStateInfo(rigStateStruct*)));
-            connect(rigCtl, SIGNAL(setFrequency(freqt)), rig, SLOT(setFrequency(freqt)));
+            connect(rigCtl, SIGNAL(setFrequency(unsigned char, freqt)), rig, SLOT(setFrequency(unsigned char, freqt)));
             connect(rigCtl, SIGNAL(setMode(unsigned char, unsigned char)), rig, SLOT(setMode(unsigned char, unsigned char)));
             connect(rigCtl, SIGNAL(setDataMode(bool, unsigned char)), rig, SLOT(setDataMode(bool, unsigned char)));
             connect(rigCtl, SIGNAL(setPTT(bool)), rig, SLOT(setPTT(bool)));
diff --git a/wfmain.h b/wfmain.h
index 390b161..b921b9c 100644
--- a/wfmain.h
+++ b/wfmain.h
@@ -58,7 +58,7 @@ signals:
 
     // Frequency, mode, band:
     void getFrequency();
-    void setFrequency(freqt freq);
+    void setFrequency(unsigned char vfo, freqt freq);
     void getMode();
     void setMode(unsigned char modeIndex, unsigned char modeFilter);
     void setMode(mode_info);