diff --git a/radio/src/pulses/afhds3.cpp b/radio/src/pulses/afhds3.cpp
index 67da700e07a..579e41a546d 100644
--- a/radio/src/pulses/afhds3.cpp
+++ b/radio/src/pulses/afhds3.cpp
@@ -147,6 +147,13 @@ enum MODULE_POWER_SOURCE
   EXTERNAL = 0x02,
 };
 
+enum DeviceAddress
+{
+  TRANSMITTER = 0x01,
+  FRM303 = 0x04,
+  IRM301 = 0x05,
+};
+
 PACK(struct ModuleVersion
 {
   uint32_t productNumber;
@@ -183,7 +190,7 @@ class ProtoState
     * @param moduleIndex index of module one of INTERNAL_MODULE, EXTERNAL_MODULE
     * @param resetFrameCount flag if current frame count should be reseted
     */
-    void init(uint8_t moduleIndex, void* buffer, etx_module_state_t* mod_st);
+    void init(uint8_t moduleIndex, void* buffer, etx_module_state_t* mod_st, uint8_t fAddr);
 
     /**
      * Fills DMA buffers with frame to be send depending on actual state
@@ -468,10 +475,10 @@ void ProtoState::setupFrame()
   }
 }
 
-void ProtoState::init(uint8_t moduleIndex, void* buffer, etx_module_state_t* mod_st)
+void ProtoState::init(uint8_t moduleIndex, void* buffer, etx_module_state_t* mod_st, uint8_t fAddr)
 {
   module_index = moduleIndex;
-  trsp.init(buffer, mod_st);
+  trsp.init(buffer, mod_st, fAddr);
 
   //clear local vars because it is member of union
   moduleData = &g_model.moduleData[module_index];
@@ -853,6 +860,7 @@ static void* initModule(uint8_t module)
   etx_module_state_t* mod_st = nullptr;
   etx_serial_init params(_uartParams);
   uint16_t period = AFHDS3_UART_COMMAND_TIMEOUT * 1000;
+  uint8_t fAddr = (module == INTERNAL_MODULE ? DeviceAddress::IRM301 : DeviceAddress::FRM303) << 4 | DeviceAddress::TRANSMITTER;
 
   params.baudrate = AFHDS3_UART_BAUDRATE;
   params.polarity =
@@ -871,7 +879,7 @@ static void* initModule(uint8_t module)
   if (!mod_st) return nullptr;
   
   auto p_state = &protoState[module];
-  p_state->init(module, pulsesGetModuleBuffer(module), mod_st);
+  p_state->init(module, pulsesGetModuleBuffer(module), mod_st, fAddr);
   mod_st->user_data = (void*)p_state;
 
   mixerSchedulerSetPeriod(module, period);
diff --git a/radio/src/pulses/afhds3_transport.cpp b/radio/src/pulses/afhds3_transport.cpp
index d23eb0b8912..cc4541a26ed 100644
--- a/radio/src/pulses/afhds3_transport.cpp
+++ b/radio/src/pulses/afhds3_transport.cpp
@@ -51,18 +51,9 @@ enum AfhdsSpecialChars {
                    // ESC_ESC  must be used
 };
 
-enum DeviceAddress
-{
-  TRANSMITTER = 0x01,
-  // MODULE = 0x03,
-  MODULE = 0x05,
-};
-
-//Address used in transmitted frames - it constrains of target address and source address
-const uint8_t FrameAddress = DeviceAddress::TRANSMITTER | (DeviceAddress::MODULE << 4);
-
-void FrameTransport::init(void* buffer)
+void FrameTransport::init(void* buffer, uint8_t fAddr)
 {
+  frameAddress = fAddr;
   trsp_buffer = (uint8_t*)buffer;
   clear();
 }
@@ -109,7 +100,7 @@ void FrameTransport::putFrame(COMMAND command, FRAME_TYPE frameType, uint8_t* da
   crc = 0;
   sendByte(START);
 
-  uint8_t buffer[] = {FrameAddress, frameIndex, frameType, command};
+  uint8_t buffer[] = {frameAddress, frameIndex, frameType, command};
   putBytes(buffer, 4);
 
   //payload
@@ -223,9 +214,9 @@ void CommandFifo::enqueue(COMMAND command, FRAME_TYPE frameType, bool useData,
   }
 }
 
-void Transport::init(void* buffer, etx_module_state_t* mod_st)
+void Transport::init(void* buffer, etx_module_state_t* mod_st, uint8_t fAddr)
 {
-  trsp.init(buffer);
+  trsp.init(buffer, fAddr);
   this->mod_st = mod_st;
 }
 
diff --git a/radio/src/pulses/afhds3_transport.h b/radio/src/pulses/afhds3_transport.h
index e7a649016c2..5383fa0121b 100644
--- a/radio/src/pulses/afhds3_transport.h
+++ b/radio/src/pulses/afhds3_transport.h
@@ -123,10 +123,11 @@ struct FrameTransport
   uint8_t* data_ptr;
 
   uint8_t crc;
+  uint8_t frameAddress;
   // uint8_t timeout;
   uint8_t esc_state;
 
-  void init(void* buffer);
+  void init(void* buffer, uint8_t fAddr);
   void clear();
 
   void sendByte(uint8_t b);
@@ -175,7 +176,7 @@ class Transport
   bool handleReply(uint8_t* buffer, uint8_t len);
   
  public:
-  void init(void* buffer, etx_module_state_t* mod_st);
+  void init(void* buffer, etx_module_state_t* mod_st, uint8_t fAddr);
 
   void clear();