diff --git a/Software/PC_Application/LibreVNA-GUI/Device/LibreVNA/Compound/compounddriver.cpp b/Software/PC_Application/LibreVNA-GUI/Device/LibreVNA/Compound/compounddriver.cpp
index 9e69c47..48083d9 100644
--- a/Software/PC_Application/LibreVNA-GUI/Device/LibreVNA/Compound/compounddriver.cpp
+++ b/Software/PC_Application/LibreVNA-GUI/Device/LibreVNA/Compound/compounddriver.cpp
@@ -31,6 +31,7 @@ CompoundDriver::CompoundDriver()
 
     specificSettings.push_back(Savable::SettingDescription(&compoundJSONString, "compoundDriver.compoundDeviceJSON", ""));
     specificSettings.push_back(Savable::SettingDescription(&captureRawReceiverValues, "compoundDriver.captureRawReceiverValues", false));
+    specificSettings.push_back(Savable::SettingDescription(&preservePhase, "compoundDriver.preservePhase", false));
 }
 
 CompoundDriver::~CompoundDriver()
@@ -212,11 +213,15 @@ QWidget *CompoundDriver::createSettingsWidget()
 
     // Set initial values
     ui->CaptureRawReceiverValues->setChecked(captureRawReceiverValues);
+    ui->PreservePhase->setChecked(preservePhase);
 
     // make connections
     connect(ui->CaptureRawReceiverValues, &QCheckBox::toggled, this, [=](){
         captureRawReceiverValues = ui->CaptureRawReceiverValues->isChecked();
     });
+    connect(ui->PreservePhase, &QCheckBox::toggled, this, [=](){
+        preservePhase = ui->PreservePhase->isChecked();
+    });
 
     connect(ui->compoundList, &QListWidget::doubleClicked, [=](){
         auto index = ui->compoundList->currentRow();
@@ -680,7 +685,7 @@ void CompoundDriver::datapointReceivecd(LibreVNADriver *dev, Protocol::VNADatapo
                     // got both required measurements
                     QString name = "S"+QString::number(i+1)+QString::number(map.first);
                     auto S = input / ref;
-                    if(inputDevice != stimulusDev) {
+                    if(!preservePhase && (inputDevice != stimulusDev)) {
                         // can't use phase information when measuring across devices
                         S = abs(S);
                     }
diff --git a/Software/PC_Application/LibreVNA-GUI/Device/LibreVNA/Compound/compounddriver.h b/Software/PC_Application/LibreVNA-GUI/Device/LibreVNA/Compound/compounddriver.h
index 8439df0..f21498f 100644
--- a/Software/PC_Application/LibreVNA-GUI/Device/LibreVNA/Compound/compounddriver.h
+++ b/Software/PC_Application/LibreVNA-GUI/Device/LibreVNA/Compound/compounddriver.h
@@ -203,6 +203,7 @@ private:
 
     // Driver specific settings
     bool captureRawReceiverValues;
+    bool preservePhase;
     QString compoundJSONString;
 
     // Buffers for storing individual device answers
diff --git a/Software/PC_Application/LibreVNA-GUI/Device/LibreVNA/Compound/compounddriversettingswidget.ui b/Software/PC_Application/LibreVNA-GUI/Device/LibreVNA/Compound/compounddriversettingswidget.ui
index f71cf08..7393ff4 100644
--- a/Software/PC_Application/LibreVNA-GUI/Device/LibreVNA/Compound/compounddriversettingswidget.ui
+++ b/Software/PC_Application/LibreVNA-GUI/Device/LibreVNA/Compound/compounddriversettingswidget.ui
@@ -75,6 +75,13 @@
         </property>
        </widget>
       </item>
+      <item>
+       <widget class="QCheckBox" name="PreservePhase">
+        <property name="text">
+         <string>Preserve phase for measurements between devices</string>
+        </property>
+       </widget>
+      </item>
      </layout>
     </widget>
    </item>