diff --git a/radio/src/pulses/pulses_arm.h b/radio/src/pulses/pulses_arm.h
index 408d96b4f..c09177872 100644
--- a/radio/src/pulses/pulses_arm.h
+++ b/radio/src/pulses/pulses_arm.h
@@ -27,7 +27,7 @@
   #define MODULES_INIT(...)            __VA_ARGS__
 #endif
 
-#if defined(PCBHORUS) && PCBREV < 13
+#if defined(PCBX12S) && PCBREV < 13
   #define pulse_duration_t             uint32_t
   #define trainer_pulse_duration_t     uint16_t
 #else
diff --git a/radio/src/targets/horus/board.h b/radio/src/targets/horus/board.h
index 35d5faf85..e36e25fe7 100644
--- a/radio/src/targets/horus/board.h
+++ b/radio/src/targets/horus/board.h
@@ -463,7 +463,7 @@ void usbJoystickUpdate();
   #define USB_MANUFACTURER             'F', 'r', 'S', 'k', 'y', ' ', ' ', ' '  /* 8 bytes */
   #define USB_PRODUCT                  'H', 'o', 'r', 'u', 's', ' ', ' ', ' '  /* 8 Bytes */
 #elif defined(PCBX10)
-  #define USB_NAME                     "FrSky HX10"
+  #define USB_NAME                     "FrSky X10"
   #define USB_MANUFACTURER             'F', 'r', 'S', 'k', 'y', ' ', ' ', ' '  /* 8 bytes */
   #define USB_PRODUCT                  'X', '1', '0', ' ', ' ', ' ', ' ', ' '  /* 8 Bytes */
 #endif
diff --git a/radio/src/targets/horus/extmodule_driver.cpp b/radio/src/targets/horus/extmodule_driver.cpp
index e94d1d082..557e126d0 100644
--- a/radio/src/targets/horus/extmodule_driver.cpp
+++ b/radio/src/targets/horus/extmodule_driver.cpp
@@ -91,7 +91,7 @@ void extmodulePpmStart()
   EXTMODULE_TIMER->CR1 &= ~TIM_CR1_CEN; // Stop timer
   EXTMODULE_TIMER->PSC = EXTMODULE_TIMER_FREQ / 2000000 - 1; // 0.5uS (2Mhz)
   EXTMODULE_TIMER->ARR = 45000;
-#if PCBREV >= 13
+#if defined(PCBX10) || PCBREV >= 13
   EXTMODULE_TIMER->CCMR2 = TIM_CCMR2_OC3M_1 | TIM_CCMR2_OC3M_2; // PWM mode 1
   EXTMODULE_TIMER->BDTR = TIM_BDTR_MOE;
   EXTMODULE_TIMER->EGR = 1; // Reloads register values now
@@ -133,7 +133,7 @@ void extmodulePxxStart()
   EXTMODULE_TIMER->PSC = EXTMODULE_TIMER_FREQ / 2000000 - 1; // 0.5uS (2Mhz)
   EXTMODULE_TIMER->ARR = 18000;
   
-#if PCBREV >= 13
+#if defined(PCBX10) || PCBREV >= 13
   EXTMODULE_TIMER->CCER = TIM_CCER_CC3E | TIM_CCER_CC3NE;
   EXTMODULE_TIMER->BDTR = TIM_BDTR_MOE; // Enable outputs
   EXTMODULE_TIMER->CCR3 = 18;
@@ -180,7 +180,7 @@ void extmoduleDsm2Start()
   EXTMODULE_TIMER->PSC = EXTMODULE_TIMER_FREQ / 2000000 - 1; // 0.5uS (2Mhz)
   EXTMODULE_TIMER->ARR = 44000; // 22mS
   
-#if PCBREV >= 13
+#if defined(PCBX10) || PCBREV >= 13
   EXTMODULE_TIMER->CCER = TIM_CCER_CC3E | TIM_CCER_CC3P;
   EXTMODULE_TIMER->BDTR = TIM_BDTR_MOE; // Enable outputs
   EXTMODULE_TIMER->CCR3 = 0;
@@ -240,7 +240,7 @@ void extmoduleCrossfireStart()
 void extmoduleSendNextFrame()
 {
   if (s_current_protocol[EXTERNAL_MODULE] == PROTO_PPM) {
-#if PCBREV >= 13
+#if defined(PCBX10) || PCBREV >= 13
     EXTMODULE_TIMER->CCR3 = GET_PPM_DELAY(EXTERNAL_MODULE)*2;
     EXTMODULE_TIMER->CCER = TIM_CCER_CC3E | (GET_PPM_POLARITY(EXTERNAL_MODULE) ? TIM_CCER_CC3P : 0);
     EXTMODULE_TIMER->CCR2 = *(modulePulsesData[EXTERNAL_MODULE].ppm.ptr - 1) - 4000; // 2mS in advance
@@ -261,7 +261,7 @@ void extmoduleSendNextFrame()
   else if (s_current_protocol[EXTERNAL_MODULE] == PROTO_PXX) {
     EXTMODULE_TIMER->CCR2 = *(modulePulsesData[EXTERNAL_MODULE].pxx.ptr - 1) - 4000; // 2mS in advance
     EXTMODULE_DMA_STREAM->CR &= ~DMA_SxCR_EN; // Disable DMA
-#if PCBREV >= 13
+#if defined(PCBX10) || PCBREV >= 13
     EXTMODULE_DMA_STREAM->CR |= EXTMODULE_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;
 #else
     EXTMODULE_DMA_STREAM->CR |= EXTMODULE_DMA_CHANNEL | DMA_SxCR_DIR_0 | DMA_SxCR_MINC | DMA_SxCR_PSIZE_1 | DMA_SxCR_MSIZE_1 | DMA_SxCR_PL_0 | DMA_SxCR_PL_1;
@@ -274,7 +274,7 @@ void extmoduleSendNextFrame()
   else if (IS_DSM2_PROTOCOL(s_current_protocol[EXTERNAL_MODULE]) || IS_MULTIMODULE_PROTOCOL(s_current_protocol[EXTERNAL_MODULE])) {
     EXTMODULE_TIMER->CCR2 = *(modulePulsesData[EXTERNAL_MODULE].dsm2.ptr - 1) - 4000; // 2mS in advance
     EXTMODULE_DMA_STREAM->CR &= ~DMA_SxCR_EN; // Disable DMA
-#if PCBREV >= 13
+#if defined(PCBX10) || PCBREV >= 13
     EXTMODULE_DMA_STREAM->CR |= EXTMODULE_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;
 #else
     EXTMODULE_DMA_STREAM->CR |= EXTMODULE_DMA_CHANNEL | DMA_SxCR_DIR_0 | DMA_SxCR_MINC | DMA_SxCR_PSIZE_1 | DMA_SxCR_MSIZE_1 | DMA_SxCR_PL_0 | DMA_SxCR_PL_1;