diff --git a/plugins/samplemimo/audiocatsiso/audiocatsiso.cpp b/plugins/samplemimo/audiocatsiso/audiocatsiso.cpp
index 0bae8601d..708eea91c 100644
--- a/plugins/samplemimo/audiocatsiso/audiocatsiso.cpp
+++ b/plugins/samplemimo/audiocatsiso/audiocatsiso.cpp
@@ -151,7 +151,7 @@ bool AudioCATSISO::startRx()
 
     m_catWorkerThread = new QThread();
     m_catWorker = new AudioCATSISOCATWorker();
-    m_inputWorker->moveToThread(m_catWorkerThread);
+    m_catWorker->moveToThread(m_catWorkerThread);
 
     QObject::connect(m_catWorkerThread, &QThread::started, m_catWorker, &AudioCATSISOCATWorker::startWork);
     QObject::connect(m_catWorkerThread, &QThread::finished, m_catWorker, &QObject::deleteLater);
@@ -159,6 +159,7 @@ bool AudioCATSISO::startRx()
 
     m_catWorker->setMessageQueueToGUI(getMessageQueueToGUI());
     m_catWorker->setMessageQueueToSISO(getInputMessageQueue());
+    m_catWorker->startWork();
     m_catWorkerThread->start();
 
     AudioCATSISOCATWorker::MsgConfigureAudioCATSISOCATWorker *msgToCAT = AudioCATSISOCATWorker::MsgConfigureAudioCATSISOCATWorker::create(
@@ -166,6 +167,9 @@ bool AudioCATSISO::startRx()
     );
     m_catWorker->getInputMessageQueue()->push(msgToCAT);
 
+    AudioCATSISOCATWorker::MsgPollTimerConnect *startTimerMsg = AudioCATSISOCATWorker::MsgPollTimerConnect::create();
+    m_catWorker->getInputMessageQueue()->push(startTimerMsg);
+
     qDebug() << "AudioCATSISO::startRx: CAT started";
     m_catRunning = true;
 
@@ -557,6 +561,10 @@ void AudioCATSISO::applySettings(const AudioCATSISOSettings& settings, const QLi
         forwardTxChange = true;
     }
 
+    if (settingsKeys.contains("catPollingMs") || force) {
+        forwardToCAT = true;
+    }
+
     if (settings.m_useReverseAPI)
     {
         bool fullUpdate = (settingsKeys.contains("useReverseAPI") && settings.m_useReverseAPI) ||
diff --git a/plugins/samplemimo/audiocatsiso/audiocatsisocatworker.cpp b/plugins/samplemimo/audiocatsiso/audiocatsisocatworker.cpp
index 042df919a..3df6814b0 100644
--- a/plugins/samplemimo/audiocatsiso/audiocatsisocatworker.cpp
+++ b/plugins/samplemimo/audiocatsiso/audiocatsisocatworker.cpp
@@ -16,6 +16,7 @@
 ///////////////////////////////////////////////////////////////////////////////////
 
 #include <QDebug>
+#include <QTimer>
 
 #include "audiocatsisocatworker.h"
 
@@ -25,6 +26,7 @@
 #endif
 
 MESSAGE_CLASS_DEFINITION(AudioCATSISOCATWorker::MsgConfigureAudioCATSISOCATWorker, Message)
+MESSAGE_CLASS_DEFINITION(AudioCATSISOCATWorker::MsgPollTimerConnect, Message)
 MESSAGE_CLASS_DEFINITION(AudioCATSISOCATWorker::MsgReportFrequency, Message)
 
 AudioCATSISOCATWorker::AudioCATSISOCATWorker(QObject* parent) :
@@ -33,6 +35,7 @@ AudioCATSISOCATWorker::AudioCATSISOCATWorker(QObject* parent) :
     m_inputMessageQueueToSISO(nullptr),
     m_running(false),
     m_connected(false),
+    m_pollTimer(nullptr),
     m_ptt(false),
     m_frequency(0)
 {
@@ -42,6 +45,10 @@ AudioCATSISOCATWorker::AudioCATSISOCATWorker(QObject* parent) :
 AudioCATSISOCATWorker::~AudioCATSISOCATWorker()
 {
     stopWork();
+
+    if (m_pollTimer) {
+        delete m_pollTimer;
+    }
 }
 
 void AudioCATSISOCATWorker::startWork()
@@ -86,7 +93,9 @@ void AudioCATSISOCATWorker::applySettings(const AudioCATSISOSettings& settings,
 
     if (settingsKeys.contains("catPollingMs") || force)
     {
-        m_pollTimer.setInterval(settings.m_catPollingMs);
+        if (m_pollTimer) {
+            m_pollTimer->setInterval(settings.m_catPollingMs);
+        }
     }
 
     if (force) {
@@ -125,6 +134,15 @@ bool AudioCATSISOCATWorker::handleMessage(const Message& message)
 
         return true;
     }
+    else if (MsgPollTimerConnect::match(message))
+    {
+        qDebug("AudioCATSISOCATWorker::handleMessage: MsgPollTimerConnect");
+        m_pollTimer = new QTimer();
+        connect(m_pollTimer, SIGNAL(timeout()), this, SLOT(pollingTick()));
+        m_pollTimer->start(m_settings.m_catPollingMs);
+
+        return true;
+    }
 
     return false;
 }
@@ -177,8 +195,6 @@ void AudioCATSISOCATWorker::catConnect()
     if (retcode == RIG_OK)
     {
         m_connected = true;
-        connect(&m_pollTimer, SIGNAL(timeout()), this, SLOT(pollingTick()));
-        m_pollTimer.start(m_settings.m_catPollingMs);
         msg = AudioCATSISOSettings::MsgCATReportStatus::create(AudioCATSISOSettings::MsgCATReportStatus::StatusConnected);
     }
     else
@@ -196,8 +212,12 @@ void AudioCATSISOCATWorker::catConnect()
 
 void AudioCATSISOCATWorker::catDisconnect()
 {
-    disconnect(&m_pollTimer, SIGNAL(timeout()), this, SLOT(pollingTick()));
-    m_pollTimer.stop();
+    if (m_pollTimer)
+    {
+        disconnect(m_pollTimer, SIGNAL(timeout()), this, SLOT(pollingTick()));
+        m_pollTimer->stop();
+    }
+
     m_connected = false;
 	rig_close(m_rig); /* close port */
 	rig_cleanup(m_rig); /* if you care about memory */
diff --git a/plugins/samplemimo/audiocatsiso/audiocatsisocatworker.h b/plugins/samplemimo/audiocatsiso/audiocatsisocatworker.h
index 4ab750c2f..178f56726 100644
--- a/plugins/samplemimo/audiocatsiso/audiocatsisocatworker.h
+++ b/plugins/samplemimo/audiocatsiso/audiocatsisocatworker.h
@@ -21,12 +21,13 @@
 #include <hamlib/rig.h>
 
 #include <QObject>
-#include <QTimer>
 
 #include "util/message.h"
 #include "util/messagequeue.h"
 #include "audiocatsisosettings.h"
 
+class QTimer;
+
 class AudioCATSISOCATWorker : public QObject {
     Q_OBJECT
 
@@ -56,6 +57,20 @@ public:
 		{ }
 	};
 
+    class MsgPollTimerConnect : public Message {
+        MESSAGE_CLASS_DECLARATION
+
+    public:
+        static MsgPollTimerConnect* create() {
+            return new MsgPollTimerConnect();
+        }
+
+    protected:
+        MsgPollTimerConnect() :
+            Message()
+        { }
+    };
+
     class MsgReportFrequency : public Message {
         MESSAGE_CLASS_DECLARATION
 
@@ -99,7 +114,7 @@ private:
     bool m_connected;
     AudioCATSISOSettings m_settings;
     RIG *m_rig;
-    QTimer m_pollTimer;
+    QTimer *m_pollTimer;
     bool m_ptt;
     uint64_t m_frequency;