diff --git a/plugins/samplesink/usrpoutput/usrpoutput.cpp b/plugins/samplesink/usrpoutput/usrpoutput.cpp
index b175136e3..b389c67da 100644
--- a/plugins/samplesink/usrpoutput/usrpoutput.cpp
+++ b/plugins/samplesink/usrpoutput/usrpoutput.cpp
@@ -951,6 +951,9 @@ void USRPOutput::webapiUpdateDeviceSettings(
     if (deviceSettingsKeys.contains("devSampleRate")) {
         settings.m_devSampleRate = response.getUsrpOutputSettings()->getDevSampleRate();
     }
+    if (deviceSettingsKeys.contains("loOffset")) {
+        settings.m_loOffset = response.getUsrpOutputSettings()->getLoOffset();
+    }
     if (deviceSettingsKeys.contains("clockSource")) {
         settings.m_clockSource = *response.getUsrpOutputSettings()->getClockSource();
     }
@@ -998,6 +1001,7 @@ void USRPOutput::webapiFormatDeviceSettings(SWGSDRangel::SWGDeviceSettings& resp
     response.getUsrpOutputSettings()->setAntennaPath(new QString(settings.m_antennaPath));
     response.getUsrpOutputSettings()->setCenterFrequency(settings.m_centerFrequency);
     response.getUsrpOutputSettings()->setDevSampleRate(settings.m_devSampleRate);
+    response.getUsrpOutputSettings()->setLoOffset(settings.m_loOffset);
     response.getUsrpOutputSettings()->setClockSource(new QString(settings.m_clockSource));
     response.getUsrpOutputSettings()->setGain(settings.m_gain);
     response.getUsrpOutputSettings()->setLog2SoftInterp(settings.m_log2SoftInterp);
@@ -1083,6 +1087,9 @@ void USRPOutput::webapiReverseSendSettings(QList<QString>& deviceSettingsKeys, c
     if (deviceSettingsKeys.contains("devSampleRate") || force) {
         swgUsrpOutputSettings->setDevSampleRate(settings.m_devSampleRate);
     }
+    if (deviceSettingsKeys.contains("loOffset") || force) {
+        swgUsrpOutputSettings->setLoOffset(settings.m_loOffset);
+    }
     if (deviceSettingsKeys.contains("clockSource") || force) {
         swgUsrpOutputSettings->setClockSource(new QString(settings.m_clockSource));
     }
diff --git a/plugins/samplesource/usrpinput/usrpinput.cpp b/plugins/samplesource/usrpinput/usrpinput.cpp
index cdd14a0aa..52d26c3b3 100644
--- a/plugins/samplesource/usrpinput/usrpinput.cpp
+++ b/plugins/samplesource/usrpinput/usrpinput.cpp
@@ -1025,6 +1025,9 @@ void USRPInput::webapiUpdateDeviceSettings(
     if (deviceSettingsKeys.contains("centerFrequency")) {
         settings.m_centerFrequency = response.getUsrpInputSettings()->getCenterFrequency();
     }
+    if (deviceSettingsKeys.contains("loOffset")) {
+        settings.m_loOffset = response.getUsrpInputSettings()->getLoOffset();
+    }
     if (deviceSettingsKeys.contains("dcBlock")) {
         settings.m_dcBlock = response.getUsrpInputSettings()->getDcBlock() != 0;
     }
@@ -1075,6 +1078,7 @@ void USRPInput::webapiFormatDeviceSettings(SWGSDRangel::SWGDeviceSettings& respo
     response.getUsrpInputSettings()->setCenterFrequency(settings.m_centerFrequency);
     response.getUsrpInputSettings()->setDcBlock(settings.m_dcBlock ? 1 : 0);
     response.getUsrpInputSettings()->setDevSampleRate(settings.m_devSampleRate);
+    response.getUsrpInputSettings()->setLoOffset(settings.m_loOffset);
     response.getUsrpInputSettings()->setClockSource(new QString(settings.m_clockSource));
     response.getUsrpInputSettings()->setGain(settings.m_gain);
     response.getUsrpInputSettings()->setGainMode((int) settings.m_gainMode);
@@ -1171,6 +1175,9 @@ void USRPInput::webapiReverseSendSettings(QList<QString>& deviceSettingsKeys, co
     if (deviceSettingsKeys.contains("centerFrequency") || force) {
         swgUsrpInputSettings->setCenterFrequency(settings.m_centerFrequency);
     }
+    if (deviceSettingsKeys.contains("loOffset") || force) {
+        swgUsrpInputSettings->setLoOffset(settings.m_loOffset);
+    }
     if (deviceSettingsKeys.contains("dcBlock") || force) {
         swgUsrpInputSettings->setDcBlock(settings.m_dcBlock ? 1 : 0);
     }
diff --git a/sdrbase/resources/webapi/doc/html2/index.html b/sdrbase/resources/webapi/doc/html2/index.html
index 2dd81cdeb..daacfd4b1 100644
--- a/sdrbase/resources/webapi/doc/html2/index.html
+++ b/sdrbase/resources/webapi/doc/html2/index.html
@@ -7583,6 +7583,9 @@ margin-bottom: 20px;
     "devSampleRate" : {
       "type" : "integer"
     },
+    "loOffset" : {
+      "type" : "integer"
+    },
     "dcBlock" : {
       "type" : "integer"
     },
@@ -7659,6 +7662,9 @@ margin-bottom: 20px;
     "devSampleRate" : {
       "type" : "integer"
     },
+    "loOffset" : {
+      "type" : "integer"
+    },
     "log2SoftInterp" : {
       "type" : "integer"
     },
@@ -39969,7 +39975,7 @@ except ApiException as e:
           </div>
           <div id="generator">
             <div class="content">
-              Generated 2020-10-11T08:49:12.690+02:00
+              Generated 2020-10-25T21:28:04.207+01:00
             </div>
           </div>
       </div>
diff --git a/swagger/sdrangel/api/swagger/include/USRP.yaml b/swagger/sdrangel/api/swagger/include/USRP.yaml
index 05d22351c..e388f288f 100644
--- a/swagger/sdrangel/api/swagger/include/USRP.yaml
+++ b/swagger/sdrangel/api/swagger/include/USRP.yaml
@@ -6,6 +6,8 @@ USRPInputSettings:
       format: int64
     devSampleRate:
       type: integer
+    loOffset:
+      type: integer
     dcBlock:
       type: integer
     iqCorrection:
@@ -46,6 +48,8 @@ USRPOutputSettings:
       format: int64
     devSampleRate:
       type: integer
+    loOffset:
+      type: integer
     log2SoftInterp:
       type: integer
     lpfBW:
diff --git a/swagger/sdrangel/code/html2/index.html b/swagger/sdrangel/code/html2/index.html
index 2dd81cdeb..daacfd4b1 100644
--- a/swagger/sdrangel/code/html2/index.html
+++ b/swagger/sdrangel/code/html2/index.html
@@ -7583,6 +7583,9 @@ margin-bottom: 20px;
     "devSampleRate" : {
       "type" : "integer"
     },
+    "loOffset" : {
+      "type" : "integer"
+    },
     "dcBlock" : {
       "type" : "integer"
     },
@@ -7659,6 +7662,9 @@ margin-bottom: 20px;
     "devSampleRate" : {
       "type" : "integer"
     },
+    "loOffset" : {
+      "type" : "integer"
+    },
     "log2SoftInterp" : {
       "type" : "integer"
     },
@@ -39969,7 +39975,7 @@ except ApiException as e:
           </div>
           <div id="generator">
             <div class="content">
-              Generated 2020-10-11T08:49:12.690+02:00
+              Generated 2020-10-25T21:28:04.207+01:00
             </div>
           </div>
       </div>
diff --git a/swagger/sdrangel/code/qt5/client/SWGUSRPInputSettings.cpp b/swagger/sdrangel/code/qt5/client/SWGUSRPInputSettings.cpp
index 61f39674b..963cdf5fa 100644
--- a/swagger/sdrangel/code/qt5/client/SWGUSRPInputSettings.cpp
+++ b/swagger/sdrangel/code/qt5/client/SWGUSRPInputSettings.cpp
@@ -32,6 +32,8 @@ SWGUSRPInputSettings::SWGUSRPInputSettings() {
     m_center_frequency_isSet = false;
     dev_sample_rate = 0;
     m_dev_sample_rate_isSet = false;
+    lo_offset = 0;
+    m_lo_offset_isSet = false;
     dc_block = 0;
     m_dc_block_isSet = false;
     iq_correction = 0;
@@ -72,6 +74,8 @@ SWGUSRPInputSettings::init() {
     m_center_frequency_isSet = false;
     dev_sample_rate = 0;
     m_dev_sample_rate_isSet = false;
+    lo_offset = 0;
+    m_lo_offset_isSet = false;
     dc_block = 0;
     m_dc_block_isSet = false;
     iq_correction = 0;
@@ -110,6 +114,7 @@ SWGUSRPInputSettings::cleanup() {
 
 
 
+
     if(antenna_path != nullptr) { 
         delete antenna_path;
     }
@@ -143,6 +148,8 @@ SWGUSRPInputSettings::fromJsonObject(QJsonObject &pJson) {
     
     ::SWGSDRangel::setValue(&dev_sample_rate, pJson["devSampleRate"], "qint32", "");
     
+    ::SWGSDRangel::setValue(&lo_offset, pJson["loOffset"], "qint32", "");
+    
     ::SWGSDRangel::setValue(&dc_block, pJson["dcBlock"], "qint32", "");
     
     ::SWGSDRangel::setValue(&iq_correction, pJson["iqCorrection"], "qint32", "");
@@ -193,6 +200,9 @@ SWGUSRPInputSettings::asJsonObject() {
     if(m_dev_sample_rate_isSet){
         obj->insert("devSampleRate", QJsonValue(dev_sample_rate));
     }
+    if(m_lo_offset_isSet){
+        obj->insert("loOffset", QJsonValue(lo_offset));
+    }
     if(m_dc_block_isSet){
         obj->insert("dcBlock", QJsonValue(dc_block));
     }
@@ -259,6 +269,16 @@ SWGUSRPInputSettings::setDevSampleRate(qint32 dev_sample_rate) {
     this->m_dev_sample_rate_isSet = true;
 }
 
+qint32
+SWGUSRPInputSettings::getLoOffset() {
+    return lo_offset;
+}
+void
+SWGUSRPInputSettings::setLoOffset(qint32 lo_offset) {
+    this->lo_offset = lo_offset;
+    this->m_lo_offset_isSet = true;
+}
+
 qint32
 SWGUSRPInputSettings::getDcBlock() {
     return dc_block;
@@ -410,6 +430,9 @@ SWGUSRPInputSettings::isSet(){
         if(m_dev_sample_rate_isSet){
             isObjectUpdated = true; break;
         }
+        if(m_lo_offset_isSet){
+            isObjectUpdated = true; break;
+        }
         if(m_dc_block_isSet){
             isObjectUpdated = true; break;
         }
diff --git a/swagger/sdrangel/code/qt5/client/SWGUSRPInputSettings.h b/swagger/sdrangel/code/qt5/client/SWGUSRPInputSettings.h
index b4c6d20d4..5e8cabbc4 100644
--- a/swagger/sdrangel/code/qt5/client/SWGUSRPInputSettings.h
+++ b/swagger/sdrangel/code/qt5/client/SWGUSRPInputSettings.h
@@ -48,6 +48,9 @@ public:
     qint32 getDevSampleRate();
     void setDevSampleRate(qint32 dev_sample_rate);
 
+    qint32 getLoOffset();
+    void setLoOffset(qint32 lo_offset);
+
     qint32 getDcBlock();
     void setDcBlock(qint32 dc_block);
 
@@ -100,6 +103,9 @@ private:
     qint32 dev_sample_rate;
     bool m_dev_sample_rate_isSet;
 
+    qint32 lo_offset;
+    bool m_lo_offset_isSet;
+
     qint32 dc_block;
     bool m_dc_block_isSet;
 
diff --git a/swagger/sdrangel/code/qt5/client/SWGUSRPOutputSettings.cpp b/swagger/sdrangel/code/qt5/client/SWGUSRPOutputSettings.cpp
index 46be95fae..5e666d639 100644
--- a/swagger/sdrangel/code/qt5/client/SWGUSRPOutputSettings.cpp
+++ b/swagger/sdrangel/code/qt5/client/SWGUSRPOutputSettings.cpp
@@ -32,6 +32,8 @@ SWGUSRPOutputSettings::SWGUSRPOutputSettings() {
     m_center_frequency_isSet = false;
     dev_sample_rate = 0;
     m_dev_sample_rate_isSet = false;
+    lo_offset = 0;
+    m_lo_offset_isSet = false;
     log2_soft_interp = 0;
     m_log2_soft_interp_isSet = false;
     lpf_bw = 0;
@@ -66,6 +68,8 @@ SWGUSRPOutputSettings::init() {
     m_center_frequency_isSet = false;
     dev_sample_rate = 0;
     m_dev_sample_rate_isSet = false;
+    lo_offset = 0;
+    m_lo_offset_isSet = false;
     log2_soft_interp = 0;
     m_log2_soft_interp_isSet = false;
     lpf_bw = 0;
@@ -97,6 +101,7 @@ SWGUSRPOutputSettings::cleanup() {
 
 
 
+
     if(antenna_path != nullptr) { 
         delete antenna_path;
     }
@@ -128,6 +133,8 @@ SWGUSRPOutputSettings::fromJsonObject(QJsonObject &pJson) {
     
     ::SWGSDRangel::setValue(&dev_sample_rate, pJson["devSampleRate"], "qint32", "");
     
+    ::SWGSDRangel::setValue(&lo_offset, pJson["loOffset"], "qint32", "");
+    
     ::SWGSDRangel::setValue(&log2_soft_interp, pJson["log2SoftInterp"], "qint32", "");
     
     ::SWGSDRangel::setValue(&lpf_bw, pJson["lpfBW"], "qint32", "");
@@ -172,6 +179,9 @@ SWGUSRPOutputSettings::asJsonObject() {
     if(m_dev_sample_rate_isSet){
         obj->insert("devSampleRate", QJsonValue(dev_sample_rate));
     }
+    if(m_lo_offset_isSet){
+        obj->insert("loOffset", QJsonValue(lo_offset));
+    }
     if(m_log2_soft_interp_isSet){
         obj->insert("log2SoftInterp", QJsonValue(log2_soft_interp));
     }
@@ -229,6 +239,16 @@ SWGUSRPOutputSettings::setDevSampleRate(qint32 dev_sample_rate) {
     this->m_dev_sample_rate_isSet = true;
 }
 
+qint32
+SWGUSRPOutputSettings::getLoOffset() {
+    return lo_offset;
+}
+void
+SWGUSRPOutputSettings::setLoOffset(qint32 lo_offset) {
+    this->lo_offset = lo_offset;
+    this->m_lo_offset_isSet = true;
+}
+
 qint32
 SWGUSRPOutputSettings::getLog2SoftInterp() {
     return log2_soft_interp;
@@ -350,6 +370,9 @@ SWGUSRPOutputSettings::isSet(){
         if(m_dev_sample_rate_isSet){
             isObjectUpdated = true; break;
         }
+        if(m_lo_offset_isSet){
+            isObjectUpdated = true; break;
+        }
         if(m_log2_soft_interp_isSet){
             isObjectUpdated = true; break;
         }
diff --git a/swagger/sdrangel/code/qt5/client/SWGUSRPOutputSettings.h b/swagger/sdrangel/code/qt5/client/SWGUSRPOutputSettings.h
index 586ef560c..1955f9bdd 100644
--- a/swagger/sdrangel/code/qt5/client/SWGUSRPOutputSettings.h
+++ b/swagger/sdrangel/code/qt5/client/SWGUSRPOutputSettings.h
@@ -48,6 +48,9 @@ public:
     qint32 getDevSampleRate();
     void setDevSampleRate(qint32 dev_sample_rate);
 
+    qint32 getLoOffset();
+    void setLoOffset(qint32 lo_offset);
+
     qint32 getLog2SoftInterp();
     void setLog2SoftInterp(qint32 log2_soft_interp);
 
@@ -91,6 +94,9 @@ private:
     qint32 dev_sample_rate;
     bool m_dev_sample_rate_isSet;
 
+    qint32 lo_offset;
+    bool m_lo_offset_isSet;
+
     qint32 log2_soft_interp;
     bool m_log2_soft_interp_isSet;