diff --git a/include/Pins.h b/include/Pins.h
index a45df93..3f49f1b 100644
--- a/include/Pins.h
+++ b/include/Pins.h
@@ -27,12 +27,9 @@
 
 #define DIAG1_PIN_M2 2 // used for homing
 
-//ADC Pin - obslete
-// #define REFLECTION_PIN 15
-
 // Filter Bank
 #define FILTER_SWITCH_A 23
 #define FILTER_SWITCH_B 22
 
 // RF Switch
-#define RF_SWITCH_PIN 34
+#define RF_SWITCH_PIN 15
diff --git a/src/ATM.ino b/src/ATM.ino
index fefe4a5..b40a5f1 100644
--- a/src/ATM.ino
+++ b/src/ATM.ino
@@ -118,6 +118,10 @@ void setup()
   digitalWrite(FILTER_SWITCH_A, LOW);
   digitalWrite(FILTER_SWITCH_B, HIGH);
 
+  // RF Switch for switching between preamp and tuning and matching module
+  pinMode(RF_SWITCH_PIN, OUTPUT);
+  digitalWrite(RF_SWITCH_PIN, HIGH);
+
   // ADAC module
   adac.enable_internal_Vref();
   adac.set_DAC_max_2x_Vref();
@@ -127,10 +131,6 @@ void setup()
   adac.write_DAC(VT, 0.0);
 
   adac.configure_ADCs(ADCs);
-
-  // RF Switch for switching between preamp and tuning and matching module
-  pinMode(RF_SWITCH_PIN, OUTPUT);
-  digitalWrite(RF_SWITCH_PIN, HIGH);
 }
 
 // Serial communication via USB.