diff --git a/src/backscattering_analyzer/analyzer.py b/src/backscattering_analyzer/analyzer.py
index 624de7c..7805087 100644
--- a/src/backscattering_analyzer/analyzer.py
+++ b/src/backscattering_analyzer/analyzer.py
@@ -182,7 +182,7 @@ class Analyzer:
 
         self.projection = Signal(
             frequencies,
-            sum(results),
+            sqrt(sum(results)),
             self.settings,
         )
-        return self.projection.sqrt()
+        return self.projection