diff --git a/corsika/modules/radio/propagators/SignalPath.hpp b/corsika/modules/radio/propagators/SignalPath.hpp
index 9a1239223838b5c56dd49384d9152bb42ee9032d..8f8a0b657c67fef95cf575608e979465c4daf81b 100644
--- a/corsika/modules/radio/propagators/SignalPath.hpp
+++ b/corsika/modules/radio/propagators/SignalPath.hpp
@@ -1,10 +1,10 @@
 /*
- * (c) Copyright 2022 CORSIKA Project, corsika-project@lists.kit.edu
- *
- * This software is distributed under the terms of the GNU General Public
- * Licence version 3 (GPL Version 3). See file LICENSE for a full version of
- * the license.
- */
+* (c) Copyright 2022 CORSIKA Project, corsika-project@lists.kit.edu
+*
+* This software is distributed under the terms of the GNU General Public
+* Licence version 3 (GPL Version 3). See file LICENSE for a full version of
+* the license.
+*/
 
 #pragma once
 
@@ -13,38 +13,36 @@
 
 namespace corsika {
 
-  /**
-   * Store the photon signal path between two points.
-   *
-   * This is basically a container class
-   */
-  struct SignalPath final : private Path {
-
-    // TODO: discuss if we need average refractivity or average refractive index
-    TimeType const propagation_time_;       ///< The total propagation time.
-    double const average_refractive_index_; ///< The average refractive index.
-    double const refractive_index_source_;  ///< The refractive index at the source.
-    double const
-        refractive_index_destination_; ///< The refractive index at the destination point.
-    Vector<dimensionless_d> const emit_;    ///< The (unit-length) emission vector.
-    Vector<dimensionless_d> const receive_; ///< The (unit-length) receive vector.
-    std::deque<Point> const
-        points_; ///< A collection of points that make up the geometrical path.
-    LengthType const
-        R_distance_; ///< The distance from the point of emission to an observer. TODO:
-                     ///< optical path, not geometrical! (probably)
-
-    /**
-     * Create a new SignalPath instance.
-     */
-    SignalPath(TimeType const propagation_time, double const average_refractive_index,
-               double const refractive_index_source,
-               double const refractive_index_destination,
-               Vector<dimensionless_d> const& emit,
-               Vector<dimensionless_d> const& receive, LengthType const R_distance,
-               std::deque<Point> const& points);
-
-  }; // END: class SignalPath final
+ /**
+  * Store the photon signal path between two points.
+  *
+  * This is basically a container class
+  */
+  struct SignalPath final : public Path {
+
+   // TODO: discuss if we need average refractivity or average refractive index
+   TimeType const propagation_time_;       ///< The total propagation time.
+   double const average_refractive_index_; ///< The average refractive index.
+   double const refractive_index_source_;  ///< The refractive index at the source.
+   double const
+       refractive_index_destination_; ///< The refractive index at the destination point.
+   Vector<dimensionless_d> const emit_;    ///< The (unit-length) emission vector.
+   Vector<dimensionless_d> const receive_; ///< The (unit-length) receive vector.
+   LengthType const
+       R_distance_; ///< The distance from the point of emission to an observer. TODO:
+                    ///< optical path, not geometrical! (probably)
+
+   /**
+    * Create a new SignalPath instance.
+    */
+   SignalPath(TimeType const propagation_time, double const average_refractive_index,
+              double const refractive_index_source,
+              double const refractive_index_destination,
+              Vector<dimensionless_d> const& emit,
+              Vector<dimensionless_d> const& receive, LengthType const R_distance,
+              std::deque<Point> const& points);
+
+ }; // END: class SignalPath final
 
 } // namespace corsika
 
diff --git a/tests/modules/testRadio.cpp b/tests/modules/testRadio.cpp
index fd5c577cd0bb5005df73894b09a0f618a3c8a243..1a5e92afa43055bbaa9835a2fed1212c6c37c093 100644
--- a/tests/modules/testRadio.cpp
+++ b/tests/modules/testRadio.cpp
@@ -552,22 +552,20 @@ TEST_CASE("Propagators") {
     // store the outcome of the Propagate method to paths_
     auto const paths_ = SP.propagate(p0, p10, 1_m);
 
-    // perform checks to paths_ components
-    for (auto const& path : paths_) {
-      CHECK((path.propagation_time_ / 1_s) -
-                (((p10 - p0).getNorm() / constants::c) / 1_s) ==
-            Approx(0));
-      CHECK(path.average_refractive_index_ == Approx(1));
-      CHECK(path.refractive_index_source_ == Approx(1));
-      CHECK(path.refractive_index_destination_ == Approx(1));
-      CHECK(path.emit_.getComponents() == v1.getComponents());
-      CHECK(path.receive_.getComponents() == v2.getComponents());
-      CHECK(path.R_distance_ == 10_m);
-      Path const path2(path.points_);
-      CHECK(std::equal(
-          P1.begin(), P1.end(), path2.begin(),
-          [](Point const& a, Point const& b) { return (a - b).getNorm() / 1_m < 1e-5; }));
-    }
+   // perform checks to paths_ components
+   for (auto const& path : paths_) {
+     CHECK((path.propagation_time_ / 1_s) -
+               (((p10 - p0).getNorm() / constants::c) / 1_s) ==
+           Approx(0));
+     CHECK(path.average_refractive_index_ == Approx(1));
+     CHECK(path.refractive_index_source_ == Approx(1));
+     CHECK(path.refractive_index_destination_ == Approx(1));
+     CHECK(path.emit_.getComponents() == v1.getComponents());
+     CHECK(path.receive_.getComponents() == v2.getComponents());
+     CHECK(path.R_distance_ == 10_m);
+     CHECK(std::equal(P1.begin(), P1.end(), path.begin(),
+                      [](Point const& a, Point const& b) { return (a - b).getNorm() / 1_m < 1e-5; }));
+   }
 
   } // END: SECTION("Simple Propagator w/ Uniform Refractive Index")
 
@@ -602,28 +600,28 @@ TEST_CASE("Propagators") {
     env.getUniverse()->addChild(std::move(Medium));
 
     // get some points
-    Point p0(rootCS, {0_m, 0_m, 0_m});
-    Point p1(rootCS, {0_m, 0_m, 1_m});
-    Point p2(rootCS, {0_m, 0_m, 2_m});
-    Point p3(rootCS, {0_m, 0_m, 3_m});
-    Point p4(rootCS, {0_m, 0_m, 4_m});
-    Point p5(rootCS, {0_m, 0_m, 5_m});
-    Point p6(rootCS, {0_m, 0_m, 6_m});
-    Point p7(rootCS, {0_m, 0_m, 7_m});
-    Point p8(rootCS, {0_m, 0_m, 8_m});
-    Point p9(rootCS, {0_m, 0_m, 9_m});
-    Point p10(rootCS, {0_m, 0_m, 10_m});
-    Point p30(rootCS, {0_m, 0_m, 30000_m});
+    Point const p0(rootCS, {0_m, 0_m, 0_m});
+    Point const p1(rootCS, {0_m, 0_m, 1_m});
+    Point const p2(rootCS, {0_m, 0_m, 2_m});
+    Point const p3(rootCS, {0_m, 0_m, 3_m});
+    Point const p4(rootCS, {0_m, 0_m, 4_m});
+    Point const p5(rootCS, {0_m, 0_m, 5_m});
+    Point const p6(rootCS, {0_m, 0_m, 6_m});
+    Point const p7(rootCS, {0_m, 0_m, 7_m});
+    Point const p8(rootCS, {0_m, 0_m, 8_m});
+    Point const p9(rootCS, {0_m, 0_m, 9_m});
+    Point const p10(rootCS, {0_m, 0_m, 10_m});
+    Point const p30(rootCS, {0_m, 0_m, 30000_m});
 
     // get a unit vector
-    Vector<dimensionless_d> v1(rootCS, {0, 0, 1});
-    Vector<dimensionless_d> v2(rootCS, {0, 0, -1});
+    Vector<dimensionless_d> const v1(rootCS, {0, 0, 1});
+    Vector<dimensionless_d> const v2(rootCS, {0, 0, -1});
 
     // get a geometrical path of points
-    Path P1({p0, p1, p2, p3, p4, p5, p6, p7, p8, p9, p10});
+    Path const P1({p0, p1, p2, p3, p4, p5, p6, p7, p8, p9, p10});
 
     // construct a Straight Propagator given the uniform refractive index environment
-    StraightPropagator SP(env);
+    StraightPropagator const SP(env);
 
     // store the outcome of the Propagate method to paths_
     auto const paths_ = SP.propagate(p0, p10, 1_m);
@@ -639,8 +637,8 @@ TEST_CASE("Propagators") {
       CHECK(path.emit_.getComponents() == v1.getComponents());
       CHECK(path.receive_.getComponents() == v2.getComponents());
       CHECK(path.R_distance_ == 10_m);
-      CHECK(std::equal(P1.begin(), P1.end(), Path(path.points_).begin(),
-                       [](Point a, Point b) { return (a - b).getNorm() / 1_m < 1e-5; }));
+      CHECK(std::equal(P1.begin(), P1.end(), path.begin(),
+                       [](Point const& a, Point const& b) { return (a - b).getNorm() / 1_m < 1e-5; }));
     }
 
     // get another path to different points
@@ -700,27 +698,27 @@ TEST_CASE("Propagators") {
     env1.getUniverse()->addChild(std::move(Medium1));
 
     // get some points
-    Point pp0(rootCS1, {0_m, 0_m, 0_m});
-    Point pp1(rootCS1, {0_m, 0_m, 1_m});
-    Point pp2(rootCS1, {0_m, 0_m, 2_m});
-    Point pp3(rootCS1, {0_m, 0_m, 3_m});
-    Point pp4(rootCS1, {0_m, 0_m, 4_m});
-    Point pp5(rootCS1, {0_m, 0_m, 5_m});
-    Point pp6(rootCS1, {0_m, 0_m, 6_m});
-    Point pp7(rootCS1, {0_m, 0_m, 7_m});
-    Point pp8(rootCS1, {0_m, 0_m, 8_m});
-    Point pp9(rootCS1, {0_m, 0_m, 9_m});
-    Point pp10(rootCS1, {0_m, 0_m, 10_m});
+    Point const pp0(rootCS1, {0_m, 0_m, 0_m});
+    Point const pp1(rootCS1, {0_m, 0_m, 1_m});
+    Point const pp2(rootCS1, {0_m, 0_m, 2_m});
+    Point const pp3(rootCS1, {0_m, 0_m, 3_m});
+    Point const pp4(rootCS1, {0_m, 0_m, 4_m});
+    Point const pp5(rootCS1, {0_m, 0_m, 5_m});
+    Point const pp6(rootCS1, {0_m, 0_m, 6_m});
+    Point const pp7(rootCS1, {0_m, 0_m, 7_m});
+    Point const pp8(rootCS1, {0_m, 0_m, 8_m});
+    Point const pp9(rootCS1, {0_m, 0_m, 9_m});
+    Point const pp10(rootCS1, {0_m, 0_m, 10_m});
 
     // get a unit vector
     Vector<dimensionless_d> vv1(rootCS1, {0, 0, 1});
     Vector<dimensionless_d> vv2(rootCS1, {0, 0, -1});
 
     // get a geometrical path of points
-    Path PP1({pp0, pp1, pp2, pp3, pp4, pp5, pp6, pp7, pp8, pp9, pp10});
+    Path const PP1({pp0, pp1, pp2, pp3, pp4, pp5, pp6, pp7, pp8, pp9, pp10});
 
     // construct a Straight Propagator given the exponential refractive index environment
-    StraightPropagator SP1(env1);
+    StraightPropagator const SP1(env1);
 
     // store the outcome of Propagate method to paths1_
     auto const paths1_ = SP1.propagate(pp0, pp10, 1_m);
@@ -736,8 +734,8 @@ TEST_CASE("Propagators") {
       CHECK(path.emit_.getComponents() == vv1.getComponents());
       CHECK(path.receive_.getComponents() == vv2.getComponents());
       CHECK(path.R_distance_ == 10_m);
-      CHECK(std::equal(PP1.begin(), PP1.end(), Path(path.points_).begin(),
-                       [](Point a, Point b) { return (a - b).getNorm() / 1_m < 1e-5; }));
+      CHECK(std::equal(PP1.begin(), PP1.end(), path.begin(),
+                       [](Point const& a, Point const& b) { return (a - b).getNorm() / 1_m < 1e-5; }));
     }
 
     CHECK(paths1_.size() == 1);
@@ -769,15 +767,15 @@ TEST_CASE("Propagators") {
     env2.getUniverse()->addChild(std::move(Medium2));
 
     // get some points
-    Point ppp0(rootCS2, {0_m, 0_m, 0_m});
-    Point ppp10(rootCS2, {0_m, 0_m, 10_m});
+    Point const ppp0(rootCS2, {0_m, 0_m, 0_m});
+    Point const ppp10(rootCS2, {0_m, 0_m, 10_m});
 
     // get a unit vector
-    Vector<dimensionless_d> vvv1(rootCS2, {0, 0, 1});
-    Vector<dimensionless_d> vvv2(rootCS2, {0, 0, -1});
+    Vector<dimensionless_d> const vvv1(rootCS2, {0, 0, 1});
+    Vector<dimensionless_d> const vvv2(rootCS2, {0, 0, -1});
 
     // construct a Straight Propagator given the exponential refractive index environment
-    StraightPropagator SP2(env2);
+    StraightPropagator const SP2(env2);
 
     // store the outcome of Propagate method to paths1_
     auto const paths2_ = SP2.propagate(ppp0, ppp10, 1_m);