diff --git a/CMakeLists.txt b/CMakeLists.txt
index c89c60e..b0ad1f0 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -98,6 +98,7 @@ set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_SOURCE_DIR}/cmake/modules/")
 	add_subdirectory(src/ExternLib/PlotCurves)
 	add_subdirectory(src/ExternLib/StatisticProcesses)
 	add_subdirectory(src/ExternLib/FramesTransformation)
+	add_subdirectory(src/ExternLib/EISCATDataFilter)
     find_package(CSlim)
     IF ( CSLIM_FOUND )
         add_subdirectory(test/DD_Client/CSlimFixtures)
diff --git a/src/ExternLib/EISCATDataFilter/CMakeLists.txt b/src/ExternLib/EISCATDataFilter/CMakeLists.txt
new file mode 100644
index 0000000..f0d7da5
--- /dev/null
+++ b/src/ExternLib/EISCATDataFilter/CMakeLists.txt
@@ -0,0 +1,23 @@
+
+PROJECT(EISCATDataFilter)
+
+set(LIBRARY_OUTPUT_PATH ${PLUGIN_OUTPUT_PATH}/EISCATDataFilter)
+
+include_directories(
+)
+
+#Library configuration
+file(
+	GLOB_RECURSE
+	source_files
+	./*
+)
+
+#ADD_LIBRARY( EISCATDataFilter SHARED ${source_files} )
+
+	#target_link_libraries(
+	#EISCATDataFilter
+#)
+
+FILE( GLOB_RECURSE PROJ_HEADERS *.hh )
+INSTALL(FILES ${PROJ_HEADERS} DESTINATION ${LIBRARY_OUTPUT_PATH}  PERMISSIONS OWNER_READ GROUP_READ WORLD_READ)
diff --git a/src/ExternLib/EISCATDataFilter/EISCATDataFilter.hh b/src/ExternLib/EISCATDataFilter/EISCATDataFilter.hh
new file mode 100644
index 0000000..696cf37
--- /dev/null
+++ b/src/ExternLib/EISCATDataFilter/EISCATDataFilter.hh
@@ -0,0 +1,37 @@
+/**
+ * EISCATDataFilter.hh
+ *
+ *  Created on: 31 oct. 2012
+ *      Author: AKKA IS
+ */
+
+#ifndef EISCATDATAFILTER_HH_
+#define EISCATDATAFILTER_HH_
+
+#include <vector>
+
+/**
+ * @bried filetr EISCAT data in relation with the requested mode
+ */
+
+// Mode :
+//	* -1 : No filter
+//  * 0  : Keep only Field-aligned
+//  * 1  : Keep only Other
+//  * 2  : Keep only Multi
+//  * 3  : Keep only Scan
+
+std::vector<float> EISCATDataFilter(const std::vector<float>& data, short crtMode, short mode = -1, int corrected = false)
+{
+	std::vector<float> result;
+	result = data;
+	if ((mode != -1) && (crtMode != mode)) {
+		for (std::vector<float>::iterator it = result.begin(); it != result.end(); ++it) {
+			(*it) = 0./0.;
+		}
+	}
+
+	return result;
+}
+
+#endif /* EISCATDATAFILTER_HH_ */
--
libgit2 0.21.2