diff --git a/radio/src/CMakeLists.txt b/radio/src/CMakeLists.txt
index b8c302f44..d36706293 100644
--- a/radio/src/CMakeLists.txt
+++ b/radio/src/CMakeLists.txt
@@ -419,6 +419,7 @@ set(SRC
   stamp.cpp
   timers.cpp
   trainer.cpp
+  model_init.cpp
   )
 
 if(GUI)
diff --git a/radio/src/model_init.cpp b/radio/src/model_init.cpp
new file mode 100644
index 000000000..af1e04366
--- /dev/null
+++ b/radio/src/model_init.cpp
@@ -0,0 +1,144 @@
+/*
+ * Copyright (C) OpenTX
+ *
+ * Based on code named
+ *   th9x - http://code.google.com/p/th9x
+ *   er9x - http://code.google.com/p/er9x
+ *   gruvin9x - http://code.google.com/p/gruvin9x
+ *
+ * License GPLv2: http://www.gnu.org/licenses/gpl-2.0.html
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include "opentx.h"
+
+void clearInputs()
+{
+  memset(g_model.expoData, 0, sizeof(g_model.expoData));
+}
+
+void defaultInputs()
+{
+  for (int i=0; i<NUM_STICKS; i++) {
+    uint8_t stick_index = channelOrder(i+1);
+    ExpoData *expo = expoAddress(i);
+    expo->srcRaw = MIXSRC_Rud - 1 + stick_index;
+    expo->curve.type = CURVE_REF_EXPO;
+    expo->chn = i;
+    expo->weight = 100;
+    expo->mode = 3; // TODO constant
+    for (int c = 0; c < 3; c++) {
+      g_model.inputNames[i][c] = STR_VSRCRAW[2 + 4 * stick_index + c];
+    }
+#if LEN_INPUT_NAME > 3
+    g_model.inputNames[i][3] = '\0';
+#endif
+  }
+  storageDirty(EE_MODEL);
+}
+
+void clearMixers()
+{
+  memset(g_model.mixData, 0, sizeof(g_model.mixData));
+}
+
+void defaultMixers()
+{
+  for (int i=0; i<NUM_STICKS; i++) {
+    MixData * mix = mixAddress(i);
+    mix->destCh = i;
+    mix->weight = 100;
+    mix->srcRaw = i+1;
+  }
+  storageDirty(EE_MODEL);
+}
+
+void defaultModelRegistrationID()
+{
+  memcpy(g_model.modelRegistrationID, g_eeGeneral.ownerRegistrationID, PXX2_LEN_REGISTRATION_ID);
+}
+
+void defaultGVars()
+{
+#if defined(FLIGHT_MODES) && defined(GVARS)
+  for (int fmIdx = 1; fmIdx < MAX_FLIGHT_MODES; fmIdx++) {
+    for (int gvarIdx = 0; gvarIdx < MAX_GVARS; gvarIdx++) {
+      g_model.flightModeData[fmIdx].gvars[gvarIdx] = GVAR_MAX + 1;
+    }
+  }
+#endif
+}
+
+void setVendorSpecificModelDefaults()
+{
+#if defined(FRSKY_RELEASE)
+  g_model.moduleData[INTERNAL_MODULE].type = IS_PXX2_INTERNAL_ENABLED() ? MODULE_TYPE_ISRM_PXX2 : MODULE_TYPE_XJT_PXX1;
+  g_model.moduleData[INTERNAL_MODULE].channelsCount = defaultModuleChannels_M8(INTERNAL_MODULE);
+  #if defined(EEPROM)
+    g_model.header.modelId[INTERNAL_MODULE] = findNextUnusedModelId(id, INTERNAL_MODULE);
+    modelHeaders[id].modelId[INTERNAL_MODULE] = g_model.header.modelId[INTERNAL_MODULE];
+  #endif
+#endif
+
+    // TODO: we should probably have some default trainer mode
+    //       per radio, depending on what is supported
+    //
+#if defined(PCBXLITE)
+  g_model.trainerData.mode = TRAINER_MODE_MASTER_BLUETOOTH;
+#endif
+
+#if defined(RADIOMASTER_RTF_RELEASE)
+  // Those settings are for headless radio
+  g_model.trainerData.mode = TRAINER_MODE_SLAVE;
+  g_model.moduleData[INTERNAL_MODULE].type = MODULE_TYPE_MULTIMODULE;
+  g_model.moduleData[INTERNAL_MODULE].setMultiProtocol(MODULE_SUBTYPE_MULTI_FRSKY);
+  g_model.moduleData[INTERNAL_MODULE].subType = MM_RF_FRSKY_SUBTYPE_D8;
+  g_model.moduleData[INTERNAL_MODULE].failsafeMode = FAILSAFE_NOPULSES;
+#endif
+}
+
+void applyDefaultTemplate()
+{
+  defaultInputs();
+  defaultMixers();
+  defaultGVars();
+
+  defaultModelRegistrationID();
+
+#if defined(COLORLCD)
+  //TODO: not sure yet we need it here
+  loadDefaultLayout();
+
+  // enable switch warnings
+  for (int i = 0; i < NUM_SWITCHES; i++) {
+    g_model.switchWarningState |= (1 << (3*i));
+  }
+#endif
+
+  // TODO: what about switch warnings in non-color LCD radios?
+
+  setVendorSpecificModelDefaults();
+}
+
+
+void modelDefault(uint8_t id)
+{
+  memset(&g_model, 0, sizeof(g_model));
+  applyDefaultTemplate();
+  strAppendUnsigned(strAppend(g_model.header.name, STR_MODEL), id + 1, 2);
+
+#if defined(LUA) && defined(PCBTARANIS) // Horus uses menuModelWizard() for wizard
+  if (isFileAvailable(WIZARD_PATH "/" WIZARD_NAME)) {
+    f_chdir(WIZARD_PATH);
+    luaExec(WIZARD_NAME);
+  }
+#endif
+}
diff --git a/radio/src/opentx.cpp b/radio/src/opentx.cpp
index f85d77480..4ad05a801 100644
--- a/radio/src/opentx.cpp
+++ b/radio/src/opentx.cpp
@@ -364,133 +364,6 @@ uint16_t evalChkSum()
   return sum;
 }
 
-void clearInputs()
-{
-  memset(g_model.expoData, 0, sizeof(g_model.expoData));
-}
-
-void defaultInputs()
-{
-  for (int i=0; i<NUM_STICKS; i++) {
-    uint8_t stick_index = channelOrder(i+1);
-    ExpoData *expo = expoAddress(i);
-    expo->srcRaw = MIXSRC_Rud - 1 + stick_index;
-    expo->curve.type = CURVE_REF_EXPO;
-    expo->chn = i;
-    expo->weight = 100;
-    expo->mode = 3; // TODO constant
-    for (int c = 0; c < 3; c++) {
-      g_model.inputNames[i][c] = STR_VSRCRAW[2 + 4 * stick_index + c];
-    }
-#if LEN_INPUT_NAME > 3
-    g_model.inputNames[i][3] = '\0';
-#endif
-  }
-  storageDirty(EE_MODEL);
-}
-
-void clearMixers()
-{
-  memset(g_model.mixData, 0, sizeof(g_model.mixData));
-}
-
-void defaultMixers()
-{
-  for (int i=0; i<NUM_STICKS; i++) {
-    MixData * mix = mixAddress(i);
-    mix->destCh = i;
-    mix->weight = 100;
-    mix->srcRaw = i+1;
-  }
-  storageDirty(EE_MODEL);
-}
-
-void defaultModelRegistrationID()
-{
-  memcpy(g_model.modelRegistrationID, g_eeGeneral.ownerRegistrationID, PXX2_LEN_REGISTRATION_ID);
-}
-
-void defaultGVars()
-{
-#if defined(FLIGHT_MODES) && defined(GVARS)
-  for (int fmIdx = 1; fmIdx < MAX_FLIGHT_MODES; fmIdx++) {
-    for (int gvarIdx = 0; gvarIdx < MAX_GVARS; gvarIdx++) {
-      g_model.flightModeData[fmIdx].gvars[gvarIdx] = GVAR_MAX + 1;
-    }
-  }
-#endif
-}
-
-// TODO:
-// - this needs to go away and be banned out of the main
-// - vendors should provide their own defaults in their own builds,
-// - and disclose them by their own means (GPL compliance)
-//
-void setVendorSpecificModelDefaults()
-{
-#if defined(FRSKY_RELEASE)
-  g_model.moduleData[INTERNAL_MODULE].type = IS_PXX2_INTERNAL_ENABLED() ? MODULE_TYPE_ISRM_PXX2 : MODULE_TYPE_XJT_PXX1;
-  g_model.moduleData[INTERNAL_MODULE].channelsCount = defaultModuleChannels_M8(INTERNAL_MODULE);
-  #if defined(EEPROM)
-    g_model.header.modelId[INTERNAL_MODULE] = findNextUnusedModelId(id, INTERNAL_MODULE);
-    modelHeaders[id].modelId[INTERNAL_MODULE] = g_model.header.modelId[INTERNAL_MODULE];
-  #endif
-#endif
-
-    // TODO: we should probably have some default trainer mode
-    //       per radio, depending on what is supported
-    //
-#if defined(PCBXLITE)
-  g_model.trainerData.mode = TRAINER_MODE_MASTER_BLUETOOTH;
-#endif
-
-#if defined(RADIOMASTER_RTF_RELEASE)
-  // Those settings are for headless radio
-  g_model.trainerData.mode = TRAINER_MODE_SLAVE;
-  g_model.moduleData[INTERNAL_MODULE].type = MODULE_TYPE_MULTIMODULE;
-  g_model.moduleData[INTERNAL_MODULE].setMultiProtocol(MODULE_SUBTYPE_MULTI_FRSKY);
-  g_model.moduleData[INTERNAL_MODULE].subType = MM_RF_FRSKY_SUBTYPE_D8;
-  g_model.moduleData[INTERNAL_MODULE].failsafeMode = FAILSAFE_NOPULSES;
-#endif
-}
-
-void applyDefaultTemplate()
-{
-  defaultInputs();
-  defaultMixers();
-  defaultGVars();
-
-  defaultModelRegistrationID();
-
-#if defined(COLORLCD)
-  //TODO: not sure yet we need it here
-  loadDefaultLayout();
-
-  // enable switch warnings
-  for (int i = 0; i < NUM_SWITCHES; i++) {
-    g_model.switchWarningState |= (1 << (3*i));
-  }
-#endif
-
-  // TODO: what about switch warnings in non-color LCD radios?
-
-  setVendorSpecificModelDefaults();
-}
-
-
-void modelDefault(uint8_t id)
-{
-  memset(&g_model, 0, sizeof(g_model));
-  applyDefaultTemplate();
-  strAppendUnsigned(strAppend(g_model.header.name, STR_MODEL), id + 1, 2);
-
-#if defined(LUA) && defined(PCBTARANIS) // Horus uses menuModelWizard() for wizard
-  if (isFileAvailable(WIZARD_PATH "/" WIZARD_NAME)) {
-    f_chdir(WIZARD_PATH);
-    luaExec(WIZARD_NAME);
-  }
-#endif
-}
 
 bool isInputRecursive(int index)
 {