diff --git a/radio/src/mixer_scheduler.cpp b/radio/src/mixer_scheduler.cpp
index 8132fe2f0..dcf95383b 100644
--- a/radio/src/mixer_scheduler.cpp
+++ b/radio/src/mixer_scheduler.cpp
@@ -42,7 +42,7 @@ uint16_t getMixerSchedulerPeriod()
     return mixerSchedules[INTERNAL_MODULE].period;
   }
 #endif
-#if 1 //defined(HARDWARE_EXTERNAL_MODULE)
+#if defined(HARDWARE_EXTERNAL_MODULE)
   if (mixerSchedules[EXTERNAL_MODULE].period) {
     return mixerSchedules[EXTERNAL_MODULE].period;
   }
@@ -58,10 +58,10 @@ void mixerSchedulerInit()
 
 void mixerSchedulerSetPeriod(uint8_t moduleIdx, uint16_t periodUs)
 {
-  if ((periodUs > 0) && (periodUs < MIN_REFRESH_RATE)) {
+  if (periodUs > 0 && periodUs < MIN_REFRESH_RATE) {
     periodUs = MIN_REFRESH_RATE;
   }
-  else if ((periodUs > 0) && (periodUs > MAX_REFRESH_RATE)) {
+  else if (periodUs > 0 && periodUs > MAX_REFRESH_RATE) {
     periodUs = MAX_REFRESH_RATE;
   }
 
diff --git a/radio/src/options.h b/radio/src/options.h
index 8592897af..4f1a1a077 100644
--- a/radio/src/options.h
+++ b/radio/src/options.h
@@ -23,7 +23,6 @@
 #define OPENTX_OPTIONS_H
 
 static const char * const options[] = {
-  "synced",
 #if defined(AUTOUPDATE)
   "autoupdate",
 #endif
diff --git a/radio/src/pulses/pulses.cpp b/radio/src/pulses/pulses.cpp
index 810fd9378..128e11976 100755
--- a/radio/src/pulses/pulses.cpp
+++ b/radio/src/pulses/pulses.cpp
@@ -356,11 +356,12 @@ bool setupPulsesExternalModule(uint8_t protocol)
       setupPulsesSbus();
 #if defined(PCBSKY9X)
       scheduleNextMixerCalculation(EXTERNAL_MODULE, SBUS_PERIOD);
-#endif
+#else
       // SBUS_PERIOD is not a constant! It can be set from UI
       mixerSchedulerSetPeriod(EXTERNAL_MODULE, SBUS_PERIOD);
       return true;
 #endif
+#endif
 
 #if defined(DSM2)
     case PROTOCOL_CHANNELS_DSM2_LP45: