diff --git a/radio/processor/src/ABlock.cpp b/radio/processor/src/ABlock.cpp
index fb4e16d..e69de29 100644
--- a/radio/processor/src/ABlock.cpp
+++ b/radio/processor/src/ABlock.cpp
@@ -1,9 +0,0 @@
-#include "ABlock.hpp"
-
-void ABlock::process()
-{
-
-
-}
-
-
diff --git a/radio/processor/src/ABlock.hpp b/radio/processor/src/ABlock.hpp
index b02e753..e1586ee 100644
--- a/radio/processor/src/ABlock.hpp
+++ b/radio/processor/src/ABlock.hpp
@@ -1,10 +1,13 @@
 #ifndef __RADIO_ABLOCK_H__
 #define __RADIO_ABLOCK_H__
 
+#include "Buffer.hpp"
+
+template <typename T>
 class ABlock
 {
     public:
-    void process();
+    virtual void process(Buffer<T> &buffer_in, Buffer<T> &buffer_out) = 0;
 };
 
 #endif // __RADIO_ABLOCK_H__
diff --git a/radio/processor/test/test01.cpp b/radio/processor/test/test01.cpp
index d01167e..c26d6e1 100644
--- a/radio/processor/test/test01.cpp
+++ b/radio/processor/test/test01.cpp
@@ -2,6 +2,7 @@
 #include <armadillo>
 
 #include <Buffer.hpp>
+#include "TestBlock.hpp"
 
 #ifndef LENGTH
 #define LENGTH(a) (sizeof(a)/sizeof(a[0]))