diff --git a/Multiprotocol/TX_Def.h b/Multiprotocol/TX_Def.h
index 72e3f15..08e131a 100644
--- a/Multiprotocol/TX_Def.h
+++ b/Multiprotocol/TX_Def.h
@@ -24,14 +24,20 @@
 
 // HISKY
 #if defined(TX_HISKY)
-	#define PPM_MAX_125	2000	//	125%
-	#define PPM_MIN_125	1000	//	125%
 	#define PPM_MAX_100	1900	//	100%
 	#define PPM_MIN_100	1100	//	100%
 	#define PPM_MAX_125	2000	//	125%
 	#define PPM_MIN_125	1000	//	125%
 #endif
 
+// Multiplex MC2020
+#if defined(TX_MPX)
+	#define PPM_MAX_100 1950 // 100%
+	#define PPM_MIN_100 1250 // 100%
+	#define PPM_MAX_125 2050 // 125%
+	#define PPM_MIN_125 1150 // 125%
+#endif
+
 //Serial MIN MAX values
 #define SERIAL_MAX_100	2012	//	100%
 #define SERIAL_MIN_100	988		//	100%
diff --git a/Multiprotocol/_Config.h b/Multiprotocol/_Config.h
index 7369e0f..dc194e2 100644
--- a/Multiprotocol/_Config.h
+++ b/Multiprotocol/_Config.h
@@ -21,7 +21,8 @@
 /*** TX SETTINGS ***/
 /*******************/
 //Modify the channel order based on your TX: AETR, TAER, RETA...
-//For example a JR/Spektrum radio is TAER. Default is AETR.
+//Examples: Flysky & DEVO is AETR, JR/Spektrum radio is TAER, Multiplex is AERT...
+//Default is AETR.
 #define AETR
 
 
@@ -124,6 +125,7 @@
 //#define TX_DEVO7		//DEVO					(1120<->1920µs)
 //#define TX_SPEKTRUM	//Spektrum				(1100<->1900µs)
 //#define TX_HISKY		//HISKY					(1100<->1900µs)
+//#define TX_MPX		//Multiplex MC2020		(1250<->1950µs)
 //#define TX_CUSTOM		//Custom
 
 // The lines below are used to set the end points in microseconds (µs) if you have selected TX_CUSTOM.