diff --git a/radio/src/gui/gui_helpers.cpp b/radio/src/gui/gui_helpers.cpp
index 376c3f0a9..cc267cbca 100644
--- a/radio/src/gui/gui_helpers.cpp
+++ b/radio/src/gui/gui_helpers.cpp
@@ -470,6 +470,7 @@ bool isRfProtocolAvailable(int protocol)
   return true;
 }
 
+#if defined(PCBHORUS) || defined(PCBTARANIS)
 bool isTrainerModeAvailable(int mode)
 {
   if (IS_EXTERNAL_MODULE_PRESENT() && (mode == TRAINER_MODE_MASTER_SBUS_EXTERNAL_MODULE || mode == TRAINER_MODE_MASTER_CPPM_EXTERNAL_MODULE))
@@ -477,6 +478,7 @@ bool isTrainerModeAvailable(int mode)
   else
     return true;
 }
+#endif
 
 bool modelHasNotes()
 {
diff --git a/radio/src/opentx.cpp b/radio/src/opentx.cpp
index aacae31ad..8cffffa0e 100644
--- a/radio/src/opentx.cpp
+++ b/radio/src/opentx.cpp
@@ -1515,6 +1515,8 @@ uint16_t BandGap ;
     #define JITTER_MEASURE_ACTIVE()   (menuHandlers[menuLevel] == menuGeneralDiagAna)
   #elif defined(CLI)
     #define JITTER_MEASURE_ACTIVE()   (1)
+  #else
+    #define JITTER_MEASURE_ACTIVE()   (0)
   #endif
 #endif