diff --git a/src/main/target/OMNIBUSF4/target.c b/src/main/target/OMNIBUSF4/target.c
index e194ed6f37..27bbf82d88 100644
--- a/src/main/target/OMNIBUSF4/target.c
+++ b/src/main/target/OMNIBUSF4/target.c
@@ -46,11 +46,11 @@ const timerHardware_t timerHardware[USABLE_TIMER_CHANNEL_COUNT] = {
 
 #if defined(OMNIBUSF4SD)
     DEF_TIM(TIM5,  CH2, PA1,  TIM_USE_MOTOR,               TIMER_OUTPUT_STANDARD, 0), // S5_OUT
-    DEF_TIM(TIM1,  CH1, PA8,  TIM_USE_MOTOR,               TIMER_OUTPUT_STANDARD, 0), // S6_OUT
     DEF_TIM(TIM4,  CH1, PB6,  TIM_USE_LED,                 TIMER_OUTPUT_STANDARD, 0), // LED strip for F4 V2 / F4-Pro-0X and later (RCD_CS for F4)
 #else
     DEF_TIM(TIM5,  CH2, PA1,  TIM_USE_MOTOR | TIM_USE_LED, TIMER_OUTPUT_STANDARD, 0), // S5_OUT
-    DEF_TIM(TIM1,  CH1, PA8,  TIM_USE_MOTOR,               TIMER_OUTPUT_STANDARD, 0), // S6_OUT
 #endif
+    DEF_TIM(TIM1,  CH1, PA8,  TIM_USE_MOTOR,               TIMER_OUTPUT_STANDARD, 0), // S6_OUT
+    DEF_TIM(TIM1,  CH2, PA9,  TIM_USE_NONE,                TIMER_OUTPUT_NONE,     0), // UART1_TX
+    DEF_TIM(TIM1,  CH3, PA10, TIM_USE_NONE,                TIMER_OUTPUT_NONE,     0), // UART1_RX
 };
-
diff --git a/src/main/target/OMNIBUSF4/target.h b/src/main/target/OMNIBUSF4/target.h
index 07ac741147..6cf9fecfb2 100644
--- a/src/main/target/OMNIBUSF4/target.h
+++ b/src/main/target/OMNIBUSF4/target.h
@@ -210,7 +210,7 @@
 #define DEFAULT_RX_FEATURE      FEATURE_RX_SERIAL
 
 #define DEFAULT_FEATURES        (FEATURE_OSD)
-#define AVOID_UART1_FOR_PWM_PPM
+
 #define USE_SERIAL_4WAY_BLHELI_INTERFACE
 
 #define TARGET_IO_PORTA (0xffff & ~(BIT(14)|BIT(13)))
@@ -219,8 +219,8 @@
 #define TARGET_IO_PORTD BIT(2)
 
 #ifdef OMNIBUSF4SD
-#define USABLE_TIMER_CHANNEL_COUNT 13
+#define USABLE_TIMER_CHANNEL_COUNT 15
 #else
-#define USABLE_TIMER_CHANNEL_COUNT 12
+#define USABLE_TIMER_CHANNEL_COUNT 14
 #endif
 #define USED_TIMERS ( TIM_N(1) | TIM_N(2) | TIM_N(3) | TIM_N(4) | TIM_N(5) | TIM_N(12) | TIM_N(8) | TIM_N(9))