diff --git a/spwplugin/StarDundee/stardundeespw_usb.cpp b/spwplugin/StarDundee/stardundeespw_usb.cpp
--- a/spwplugin/StarDundee/stardundeespw_usb.cpp
+++ b/spwplugin/StarDundee/stardundeespw_usb.cpp
@@ -88,7 +88,6 @@ bool stardundeeSPW_USB::disconnectBridge
     return false;
 }
 
-
 int stardundeeSPW_USB::pushRMAPPacket(char *packet, int size)
 {
     return this->manager->sendPacket(packet,size);
@@ -366,11 +365,12 @@ void stardundeeSPW_USB::makeGUI(socexplo
     connect(this,SIGNAL(SetBrickAsARouter(bool)),       ((StarDundeeGUI*)this->p_GUI),SLOT(setBrickAsARouter(bool)));
     connect(this,SIGNAL(BytesReceivedFromSpw(uint)),    ((StarDundeeGUI*)this->p_GUI),SLOT(updateNbReceivedBytesFromSpw(uint)));
     connect(this,SIGNAL(BytesTransmittedToSpw(uint)),   ((StarDundeeGUI*)this->p_GUI),SLOT(updateNbTransmittedBytesToSpw(uint)));
-    connect(this, SIGNAL(CCSDSPacketTransmittedToSpw()),((StarDundeeGUI*)this->p_GUI),SLOT(updateCCSDSPacketTransmittedToSpw()));
+    connect(this,SIGNAL(CCSDSPacketTransmittedToSpw()), ((StarDundeeGUI*)this->p_GUI),SLOT(updateCCSDSPacketTransmittedToSpw()));
     connect(this,SIGNAL(SetTimecodeFrequency(double)),  ((StarDundeeGUI*)this->p_GUI),SLOT(setTimecodeFrequency(QString)));
     connect(this,SIGNAL(StartSendingTimecodes(bool)),   ((StarDundeeGUI*)this->p_GUI),SLOT(setStartSendingTimecodes(bool)));
 
-    connect(this,SIGNAL(GetLinkNumber()),               this->manager,                SLOT(getLinkNumber()));
+    connect(this,SIGNAL(SendOneTimecode(unsigned char)),this->manager, SLOT(sendOneTimecode(unsigned char)));
+    connect(this,SIGNAL(GetLinkNumber()),               this->manager, SLOT(getLinkNumber()));
 }
 
 void stardundeeSPW_USB::sendPacketComingFromTCPServer(char *packet, int size)
@@ -1069,6 +1069,20 @@ void stardundeeSPW_USB_Manager::setTimec
         SocExplorerEngine::message(this->plugin,"tick frequency set to " + QString::number(currentFrequency) +" Hz");
 }
 
+void stardundeeSPW_USB_Manager::sendOneTimecode( unsigned char nTimein )
+{
+    // enable external timecode selection
+    if(!USBSpaceWire_TC_EnableExternalTimecodeSelection(hDevice,1))
+        SocExplorerEngine::message(this->plugin,"sendOneTimecode *** ERR *** enable external timecode selection");
+
+    if (!USBSpaceWire_TC_PerformTickIn( hDevice, nTimein) )
+        SocExplorerEngine::message( this->plugin,"sendOneTimecode *** ERR *** Could not send the requested timecode: " + QString::number(nTimein) );
+    else
+        SocExplorerEngine::message( this->plugin,"sendOneTimecode *** OK *** timecode sent " + QString::number(nTimein) );
+
+    // disable external timecode selection
+    if(!USBSpaceWire_TC_EnableExternalTimecodeSelection(hDevice,0))
+        SocExplorerEngine::message(this->plugin,"sendOneTimecode *** ERR *** disable external timecode selection");
+}
 
 
-
diff --git a/spwplugin/StarDundee/stardundeespw_usb.h b/spwplugin/StarDundee/stardundeespw_usb.h
--- a/spwplugin/StarDundee/stardundeespw_usb.h
+++ b/spwplugin/StarDundee/stardundeespw_usb.h
@@ -69,6 +69,7 @@ signals:
 
 public slots:
     void sendTimecodePeriodically( bool onOff );
+    void sendOneTimecode(unsigned char nTimein);
     int getLinkNumber( void );
 
 private:
@@ -131,6 +132,7 @@ signals:
     void BytesTransmittedToSpw( unsigned int );
     void CCSDSPacketTransmittedToSpw( void );
     void StartSendingTimecodes( bool );
+    void SendOneTimecode( unsigned char );
     int GetLinkNumber();
 
 public slots:
diff --git a/spwplugin/spwplugin.cpp b/spwplugin/spwplugin.cpp
--- a/spwplugin/spwplugin.cpp
+++ b/spwplugin/spwplugin.cpp
@@ -119,6 +119,8 @@ void spwplugin::bridgeSelectionChanged(c
                 ((stardundeeSPW_USB*)bridge),SIGNAL(StartSendingTimecodes(bool)));
         connect(((spwPyWrapper*)this->pyObject),SIGNAL(StarDundeeSetTimecodeFrequency(double)),
                 ((stardundeeSPW_USB*)bridge),SIGNAL(SetTimecodeFrequency(double)));
+        connect(((spwPyWrapper*)this->pyObject),SIGNAL(StarDundeeSendOneTimecode(unsigned char)),
+                ((stardundeeSPW_USB*)bridge),SIGNAL(SendOneTimecode(unsigned char)));
         connect(this->bridge,SIGNAL(pushPacketOverTCP(char*,int)),this->tcpServer,SLOT(pushPacket(char*,int)));
         connect(this->tcpServer, SIGNAL(sendSPWPacket(char*,int)), ((stardundeeSPW_USB*)bridge), SLOT(sendPacketComingFromTCPServer(char*,int)));
     }
diff --git a/spwplugin/spwpywrapper.h b/spwplugin/spwpywrapper.h
--- a/spwplugin/spwpywrapper.h
+++ b/spwplugin/spwpywrapper.h
@@ -26,6 +26,7 @@ signals:
     void StarDundeeSetBrickAsARouter( bool );
     void StarDundeeSetTimecodeFrequency( double );
     void StarDundeeStartTimecodes( bool );
+    void StarDundeeSendOneTimecode( unsigned char timecode );
 
     void TCPServerConnect();
     void TCPServerDisconnect();