diff --git a/src/configuration.h b/src/configuration.h
index 08956678..ed851ed8 100644
--- a/src/configuration.h
+++ b/src/configuration.h
@@ -162,10 +162,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 // This string must exactly match the case used in release file names or the android updater won't work
 #define HW_VENDOR "tbeam"
 
-// Jm's TXRX Deduplexer
-#define RADIO_TXRX 2
-
-
 // #define BUTTON_NEED_PULLUP // if set we need to turn on the internal CPU pullup during sleep
 
 #define I2C_SDA 21
diff --git a/src/main.cpp b/src/main.cpp
index 84ea99c0..acef3b67 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -245,12 +245,6 @@ void setup()
     SEGGER_RTT_ConfigUpBuffer(SEGGER_STDOUT_CH, NULL, NULL, 1024, SEGGER_RTT_MODE_NO_BLOCK_TRIM);
 #endif
 
-// Jm's TXRX Deduplexer
-//  if 0 - receive
-//     1 - transmit
-pinMode(RADIO_TXRX, OUTPUT);
-digitalWrite(RADIO_TXRX, 0);
-
 #ifdef USE_SEGGER
     SEGGER_RTT_ConfigUpBuffer(0, NULL, NULL, 0, SEGGER_RTT_MODE_NO_BLOCK_TRIM);
 #endif