diff --git a/devices/plutosdr/deviceplutosdrbox.cpp b/devices/plutosdr/deviceplutosdrbox.cpp
index 085924ee2..48222b81e 100644
--- a/devices/plutosdr/deviceplutosdrbox.cpp
+++ b/devices/plutosdr/deviceplutosdrbox.cpp
@@ -469,7 +469,7 @@ void DevicePlutoSDRBox::setSampleRate(uint32_t sampleRate)
     m_devSampleRate = sampleRate;
 }
 
-void DevicePlutoSDRBox::setFIR(uint32_t log2IntDec, uint32_t bw, int gain)
+void DevicePlutoSDRBox::setFIR(uint32_t sampleRate, uint32_t log2IntDec, uint32_t bw, int gain)
 {
     SampleRates sampleRates;
     std::ostringstream ostr;
@@ -487,7 +487,8 @@ void DevicePlutoSDRBox::setFIR(uint32_t log2IntDec, uint32_t bw, int gain)
     setFilter(ostr.str());
     ostr.str(""); // reset string stream
 
-    setFIREnable(true); // re-enable
+    setFIREnable(true);        // re-enable
+    setSampleRate(sampleRate); // set to new sample rate
 
     if (!getRxSampleRates(sampleRates)) {
         return;
@@ -518,6 +519,8 @@ void DevicePlutoSDRBox::setFIR(uint32_t log2IntDec, uint32_t bw, int gain)
     m_lpfFIRlog2Decim = log2IntDec;
     m_lpfFIRBW = bw;
     m_lpfFIRGain = gain;
+
+    // enable and set sample rate will be done by the caller
 }
 
 void DevicePlutoSDRBox::setFIREnable(bool enable)
diff --git a/devices/plutosdr/deviceplutosdrbox.h b/devices/plutosdr/deviceplutosdrbox.h
index 1a67c4b0f..8990ceb46 100644
--- a/devices/plutosdr/deviceplutosdrbox.h
+++ b/devices/plutosdr/deviceplutosdrbox.h
@@ -88,7 +88,7 @@ public:
     bool getRxSampleRates(SampleRates& sampleRates);
     bool getTxSampleRates(SampleRates& sampleRates);
     void setSampleRate(uint32_t sampleRate);
-    void setFIR(uint32_t intdec, uint32_t bw, int gain);
+    void setFIR(uint32_t sampleRate, uint32_t intdec, uint32_t bw, int gain);
     void setFIREnable(bool enable);
     void setLOPPMTenths(int ppmTenths);
     bool getRSSI(std::string& rssiStr, unsigned int chan);
diff --git a/plugins/samplesource/plutosdrinput/plutosdrinput.cpp b/plugins/samplesource/plutosdrinput/plutosdrinput.cpp
index 9fe52c6c6..28b30983e 100644
--- a/plugins/samplesource/plutosdrinput/plutosdrinput.cpp
+++ b/plugins/samplesource/plutosdrinput/plutosdrinput.cpp
@@ -307,7 +307,7 @@ bool PlutoSDRInput::applySettings(const PlutoSDRInputSettings& settings, bool fo
         }
     }
 
-    // TODO: apply settings (all cases)
+    // apply settings
 
     if ((m_settings.m_dcBlock != settings.m_dcBlock) ||
         (m_settings.m_iqCorrection != settings.m_iqCorrection) || force)
@@ -322,9 +322,9 @@ bool PlutoSDRInput::applySettings(const PlutoSDRInputSettings& settings, bool fo
         (settings.m_lpfFIRBW != m_settings.m_lpfFIRBW) ||
         (settings.m_lpfFIRGain != m_settings.m_lpfFIRGain) || force)
     {
-        plutoBox->setSampleRate(settings.m_devSampleRate); // set end point frequency first
-        //plutoBox->setFIR(settings.m_lpfFIRlog2Decim, settings.m_lpfFIRBW, settings.m_lpfFIRGain); // don't bother with the FIR at this point
-        //plutoBox->setFIREnable(settings.m_lpfFIREnable); // eventually enable/disable FIR
+        plutoBox->setFIR(settings.m_devSampleRate, settings.m_lpfFIRlog2Decim, settings.m_lpfFIRBW, settings.m_lpfFIRGain); // don't bother with the FIR at this point
+        plutoBox->setFIREnable(settings.m_lpfFIREnable);   // eventually enable/disable FIR
+        plutoBox->setSampleRate(settings.m_devSampleRate); // and set end point sample rate
 
         plutoBox->getRxSampleRates(m_deviceSampleRates); // pick up possible new rates
         qDebug() << "PlutoSDRInput::applySettings: BBPLL(Hz): " << m_deviceSampleRates.m_bbRateHz