diff --git a/radio/src/pulses/pulses.cpp b/radio/src/pulses/pulses.cpp
index 3fc1868ac..f6bb81176 100755
--- a/radio/src/pulses/pulses.cpp
+++ b/radio/src/pulses/pulses.cpp
@@ -333,6 +333,9 @@ bool setupPulsesExternalModule(uint8_t protocol)
 #if defined(SBUS)
     case PROTOCOL_CHANNELS_SBUS:
       setupPulsesSbus();
+
+      // SBUS_PERIOD is not a constant! It can be set from UI
+      mixerSchedulerSetPeriod(EXTERNAL_MODULE, SBUS_PERIOD);
       return true;
 #endif