diff --git a/radio/src/pulses/pulses.h b/radio/src/pulses/pulses.h
index 00f4df0a5..2b298b668 100644
--- a/radio/src/pulses/pulses.h
+++ b/radio/src/pulses/pulses.h
@@ -130,12 +130,9 @@ PACK(struct CrossfirePulsesData {
 
 union InternalModulePulsesData {
 #if defined(PXX1)
-  #if defined(INTMODULE_USART) || defined(EXTMODULE_USART)
+  #if defined(INTMODULE_USART)
     UartPxx1Pulses pxx_uart;
-  #endif
-  #if defined(PPM_PIN_SERIAL)
-    SerialPxx1Pulses pxx;
-  #elif !defined(INTMODULE_USART) || !defined(EXTMODULE_USART)
+  #else
     PwmPxx1Pulses pxx;
   #endif
 #endif
diff --git a/radio/src/targets/taranis/intmodule_pulses_driver.cpp b/radio/src/targets/taranis/intmodule_pulses_driver.cpp
index 7da20145f..daee583ec 100644
--- a/radio/src/targets/taranis/intmodule_pulses_driver.cpp
+++ b/radio/src/targets/taranis/intmodule_pulses_driver.cpp
@@ -34,7 +34,11 @@ void intmoduleStop()
 
 void intmoduleSendNextFrame()
 {
-  if (moduleSettings[INTERNAL_MODULE].protocol == PROTOCOL_CHANNELS_PXX1) {
+  if (0) {
+
+  }
+#if defined(PXX1)
+  else if (moduleSettings[INTERNAL_MODULE].protocol == PROTOCOL_CHANNELS_PXX1) {
     INTMODULE_TIMER->CCR2 = intmodulePulsesData.pxx.getLast() - 4000; // 2mS in advance
     INTMODULE_DMA_STREAM->CR &= ~DMA_SxCR_EN; // Disable DMA
     INTMODULE_DMA_STREAM->CR |= INTMODULE_DMA_CHANNEL | DMA_SxCR_DIR_0 | DMA_SxCR_MINC | DMA_SxCR_PSIZE_0 | DMA_SxCR_MSIZE_0 | DMA_SxCR_PL_0 | DMA_SxCR_PL_1;
@@ -43,6 +47,7 @@ void intmoduleSendNextFrame()
     INTMODULE_DMA_STREAM->NDTR = intmodulePulsesData.pxx.getSize();
     INTMODULE_DMA_STREAM->CR |= DMA_SxCR_EN | DMA_SxCR_TCIE; // Enable DMA
   }
+#endif
 #if defined(TARANIS_INTERNAL_PPM)
   else if (moduleSettings[INTERNAL_MODULE].protocol == PROTOCOL_CHANNELS_PPM) {
     INTMODULE_TIMER->CCR3 = GET_MODULE_PPM_DELAY(INTERNAL_MODULE) * 2;