diff --git a/ADF7021.cpp b/ADF7021.cpp
index 71cafac..eb781ee 100644
--- a/ADF7021.cpp
+++ b/ADF7021.cpp
@@ -1,6 +1,7 @@
 /*
  *   Copyright (C) 2016 by Jim McLaughlin KI6ZUM
  *   Copyright (C) 2016, 2017 by Andy Uribe CA6JAU
+ *   Copyright (C) 2017 by Danilo DB4PLE 
  * 
  *   Some of the code is based on work of Guus Van Dooren PE1PLM:
  *   https://github.com/ki6zum/gmsk-dstar/blob/master/firmware/dvmega/dvmega.ino
diff --git a/ADF7021.h b/ADF7021.h
index 8a5e669..fbb3f9b 100644
--- a/ADF7021.h
+++ b/ADF7021.h
@@ -1,6 +1,7 @@
 /*
  *   Copyright (C) 2016 by Jim McLaughlin KI6ZUM
  *   Copyright (C) 2016, 2017 by Andy Uribe CA6JAU
+ *   Copyright (C) 2017 by Danilo DB4PLE 
  *
  *   Some of the code is based on work of Guus Van Dooren PE1PLM:
  *   https://github.com/ki6zum/gmsk-dstar/blob/master/firmware/dvmega/dvmega.ino
diff --git a/IO.cpp b/IO.cpp
index 6e5b2ec..b6882a4 100644
--- a/IO.cpp
+++ b/IO.cpp
@@ -1,7 +1,8 @@
 /*
  *   Copyright (C) 2015, 2016 by Jonathan Naylor G4KLX
  *   Copyright (C) 2016, 2017 by Andy Uribe CA6JAU
- *
+ *   Copyright (C) 2017 by Danilo DB4PLE 
+ 
  *   This program is free software; you can redistribute it and/or modify
  *   it under the terms of the GNU General Public License as published by
  *   the Free Software Foundation; either version 2 of the License, or
diff --git a/IO.h b/IO.h
index aa8d2d1..b79348b 100644
--- a/IO.h
+++ b/IO.h
@@ -1,7 +1,8 @@
 /*
  *   Copyright (C) 2015, 2016 by Jonathan Naylor G4KLX
  *   Copyright (C) 2016, 2017 by Andy Uribe CA6JAU
- *
+ *   Copyright (C) 2017 by Danilo DB4PLE 
+ 
  *   This program is free software; you can redistribute it and/or modify
  *   it under the terms of the GNU General Public License as published by
  *   the Free Software Foundation; either version 2 of the License, or
diff --git a/IOArduino.cpp b/IOArduino.cpp
index 9fc560f..e6a0c6c 100644
--- a/IOArduino.cpp
+++ b/IOArduino.cpp
@@ -1,7 +1,8 @@
 /*
  *   Copyright (C) 2015, 2016 by Jonathan Naylor G4KLX
  *   Copyright (C) 2016, 2017 by Andy Uribe CA6JAU
- *
+ *   Copyright (C) 2017 by Danilo DB4PLE 
+ 
  *   This program is free software; you can redistribute it and/or modify
  *   it under the terms of the GNU General Public License as published by
  *   the Free Software Foundation; either version 2 of the License, or
diff --git a/IOSTM.cpp b/IOSTM.cpp
index 7f27583..c72e96e 100644
--- a/IOSTM.cpp
+++ b/IOSTM.cpp
@@ -1,7 +1,8 @@
 /*
  *   Copyright (C) 2016 by Jim McLaughlin KI6ZUM
  *   Copyright (C) 2016, 2017 by Andy Uribe CA6JAU
- *
+ *   Copyright (C) 2017 by Danilo DB4PLE 
+  
  *   This program is free software; you can redistribute it and/or modify
  *   it under the terms of the GNU General Public License as published by
  *   the Free Software Foundation; either version 2 of the License, or