diff --git a/sdrbase/resources/webapi/doc/html2/index.html b/sdrbase/resources/webapi/doc/html2/index.html
index 0b2415c55..e643b84ad 100644
--- a/sdrbase/resources/webapi/doc/html2/index.html
+++ b/sdrbase/resources/webapi/doc/html2/index.html
@@ -3871,6 +3871,9 @@ margin-bottom: 20px;
     "title" : {
       "type" : "string"
     },
+    "spanLog2" : {
+      "type" : "integer"
+    },
     "alphaEMA" : {
       "type" : "number",
       "format" : "float",
@@ -40052,7 +40055,7 @@ except ApiException as e:
           </div>
           <div id="generator">
             <div class="content">
-              Generated 2020-10-27T06:18:18.403+01:00
+              Generated 2020-10-27T06:29:00.746+01:00
             </div>
           </div>
       </div>
diff --git a/sdrbase/resources/webapi/doc/swagger/include/FreqTracker.yaml b/sdrbase/resources/webapi/doc/swagger/include/FreqTracker.yaml
index 68a029cd5..5d507b162 100644
--- a/sdrbase/resources/webapi/doc/swagger/include/FreqTracker.yaml
+++ b/sdrbase/resources/webapi/doc/swagger/include/FreqTracker.yaml
@@ -19,6 +19,8 @@ FreqTrackerSettings:
       type: integer
     title:
       type: string
+    spanLog2:
+      type: integer
     alphaEMA:
       description: Alpha factor for delta frequency EMA
       type: number
diff --git a/swagger/sdrangel/code/html2/index.html b/swagger/sdrangel/code/html2/index.html
index 0b2415c55..e643b84ad 100644
--- a/swagger/sdrangel/code/html2/index.html
+++ b/swagger/sdrangel/code/html2/index.html
@@ -3871,6 +3871,9 @@ margin-bottom: 20px;
     "title" : {
       "type" : "string"
     },
+    "spanLog2" : {
+      "type" : "integer"
+    },
     "alphaEMA" : {
       "type" : "number",
       "format" : "float",
@@ -40052,7 +40055,7 @@ except ApiException as e:
           </div>
           <div id="generator">
             <div class="content">
-              Generated 2020-10-27T06:18:18.403+01:00
+              Generated 2020-10-27T06:29:00.746+01:00
             </div>
           </div>
       </div>
diff --git a/swagger/sdrangel/code/qt5/client/SWGFreqTrackerSettings.cpp b/swagger/sdrangel/code/qt5/client/SWGFreqTrackerSettings.cpp
index 1b4304d41..ecac0e393 100644
--- a/swagger/sdrangel/code/qt5/client/SWGFreqTrackerSettings.cpp
+++ b/swagger/sdrangel/code/qt5/client/SWGFreqTrackerSettings.cpp
@@ -40,6 +40,8 @@ SWGFreqTrackerSettings::SWGFreqTrackerSettings() {
     m_rgb_color_isSet = false;
     title = nullptr;
     m_title_isSet = false;
+    span_log2 = 0;
+    m_span_log2_isSet = false;
     alpha_ema = 0.0f;
     m_alpha_ema_isSet = false;
     tracking = 0;
@@ -86,6 +88,8 @@ SWGFreqTrackerSettings::init() {
     m_rgb_color_isSet = false;
     title = new QString("");
     m_title_isSet = false;
+    span_log2 = 0;
+    m_span_log2_isSet = false;
     alpha_ema = 0.0f;
     m_alpha_ema_isSet = false;
     tracking = 0;
@@ -133,6 +137,7 @@ SWGFreqTrackerSettings::cleanup() {
 
 
 
+
     if(reverse_api_address != nullptr) { 
         delete reverse_api_address;
     }
@@ -164,6 +169,8 @@ SWGFreqTrackerSettings::fromJsonObject(QJsonObject &pJson) {
     
     ::SWGSDRangel::setValue(&title, pJson["title"], "QString", "QString");
     
+    ::SWGSDRangel::setValue(&span_log2, pJson["spanLog2"], "qint32", "");
+    
     ::SWGSDRangel::setValue(&alpha_ema, pJson["alphaEMA"], "float", "");
     
     ::SWGSDRangel::setValue(&tracking, pJson["tracking"], "qint32", "");
@@ -224,6 +231,9 @@ SWGFreqTrackerSettings::asJsonObject() {
     if(title != nullptr && *title != QString("")){
         toJsonValue(QString("title"), title, obj, QString("QString"));
     }
+    if(m_span_log2_isSet){
+        obj->insert("spanLog2", QJsonValue(span_log2));
+    }
     if(m_alpha_ema_isSet){
         obj->insert("alphaEMA", QJsonValue(alpha_ema));
     }
@@ -327,6 +337,16 @@ SWGFreqTrackerSettings::setTitle(QString* title) {
     this->m_title_isSet = true;
 }
 
+qint32
+SWGFreqTrackerSettings::getSpanLog2() {
+    return span_log2;
+}
+void
+SWGFreqTrackerSettings::setSpanLog2(qint32 span_log2) {
+    this->span_log2 = span_log2;
+    this->m_span_log2_isSet = true;
+}
+
 float
 SWGFreqTrackerSettings::getAlphaEma() {
     return alpha_ema;
@@ -480,6 +500,9 @@ SWGFreqTrackerSettings::isSet(){
         if(title && *title != QString("")){
             isObjectUpdated = true; break;
         }
+        if(m_span_log2_isSet){
+            isObjectUpdated = true; break;
+        }
         if(m_alpha_ema_isSet){
             isObjectUpdated = true; break;
         }
diff --git a/swagger/sdrangel/code/qt5/client/SWGFreqTrackerSettings.h b/swagger/sdrangel/code/qt5/client/SWGFreqTrackerSettings.h
index a6855ff80..fee0e0247 100644
--- a/swagger/sdrangel/code/qt5/client/SWGFreqTrackerSettings.h
+++ b/swagger/sdrangel/code/qt5/client/SWGFreqTrackerSettings.h
@@ -60,6 +60,9 @@ public:
     QString* getTitle();
     void setTitle(QString* title);
 
+    qint32 getSpanLog2();
+    void setSpanLog2(qint32 span_log2);
+
     float getAlphaEma();
     void setAlphaEma(float alpha_ema);
 
@@ -121,6 +124,9 @@ private:
     QString* title;
     bool m_title_isSet;
 
+    qint32 span_log2;
+    bool m_span_log2_isSet;
+
     float alpha_ema;
     bool m_alpha_ema_isSet;