diff --git a/radio/src/pulses/dsm2.cpp b/radio/src/pulses/dsm2.cpp
index 0cd037e2b..392f886be 100644
--- a/radio/src/pulses/dsm2.cpp
+++ b/radio/src/pulses/dsm2.cpp
@@ -35,11 +35,6 @@
 
 void _send_1(uint8_t v)
 {
-  if (extmodulePulsesData.dsm2.index & 1)
-    v += 2;
-  else
-    v -= 2;
-
   *extmodulePulsesData.dsm2.ptr++ = v - 1;
   extmodulePulsesData.dsm2.index += 1;
 }
diff --git a/radio/src/targets/common/arm/stm32/extmodule_driver.cpp b/radio/src/targets/common/arm/stm32/extmodule_driver.cpp
index c932b2aa7..e877e9bdb 100644
--- a/radio/src/targets/common/arm/stm32/extmodule_driver.cpp
+++ b/radio/src/targets/common/arm/stm32/extmodule_driver.cpp
@@ -81,7 +81,7 @@ static void config_ppm_output(uint16_t ppm_delay, bool polarity)
   // AAR register defines duration of each pulse, it is
   // updated after every pulse in Update interrupt handler.
 
-  stm32_pulse_config_output(&extmoduleTimer, !polarity, LL_TIM_OCMODE_PWM1,
+  stm32_pulse_config_output(&extmoduleTimer, !polarity, LL_TIM_OCMODE_FORCED_INACTIVE,
                             ppm_delay * 2);
 }
 
diff --git a/radio/src/targets/common/arm/stm32/stm32_pulse_driver.cpp b/radio/src/targets/common/arm/stm32/stm32_pulse_driver.cpp
index 1ecce348f..2274e1ab3 100644
--- a/radio/src/targets/common/arm/stm32/stm32_pulse_driver.cpp
+++ b/radio/src/targets/common/arm/stm32/stm32_pulse_driver.cpp
@@ -155,6 +155,17 @@ static void set_oc_mode(const stm32_pulse_timer_t* tim, uint32_t ocmode)
   LL_TIM_OC_SetMode(tim->TIMx, channel, ocmode);
 }
 
+static void force_start_level(const stm32_pulse_timer_t* tim)
+{
+  uint32_t channel = tim->TIM_Channel;
+  if (channel == LL_TIM_CHANNEL_CH1N)
+    channel = LL_TIM_CHANNEL_CH1;
+
+  uint32_t mode = LL_TIM_OC_GetMode(tim->TIMx, channel);
+  LL_TIM_OC_SetMode(tim->TIMx, channel, LL_TIM_OCMODE_FORCED_ACTIVE);
+  LL_TIM_OC_SetMode(tim->TIMx, channel, mode);
+}
+
 void stm32_pulse_start_dma_req(const stm32_pulse_timer_t* tim,
                                const void* pulses, uint16_t length,
                                uint32_t ocmode, uint32_t cmp_val)
@@ -211,6 +222,7 @@ void stm32_pulse_start_dma_req(const stm32_pulse_timer_t* tim,
   LL_TIM_GenerateEvent_UPDATE(tim->TIMx);
 
   // start timer
+  force_start_level(tim);
   LL_TIM_EnableCounter(tim->TIMx);
 }