diff --git a/lib/examples/CMakeLists.txt b/lib/examples/CMakeLists.txt
index 652a2c195..9c6ee193e 100644
--- a/lib/examples/CMakeLists.txt
+++ b/lib/examples/CMakeLists.txt
@@ -65,7 +65,7 @@ if(RF_FOUND)
   add_executable(cell_search cell_search.c)
   target_link_libraries(cell_search srslte_phy srslte_rf)
 
-  add_executable(cell_measurement cell_measurement.c)
+  add_executable(cell_measurement cell_measurement.c ../include/srslte/common/logger_stdout.h)
   target_link_libraries(cell_measurement srslte_phy srslte_rf)
 
   add_executable(usrp_capture usrp_capture.c)
diff --git a/lib/include/srslte/common/log_filter.h b/lib/include/srslte/common/log_filter.h
index c1ed1998a..ae232f135 100644
--- a/lib/include/srslte/common/log_filter.h
+++ b/lib/include/srslte/common/log_filter.h
@@ -38,15 +38,19 @@
 #include <stdarg.h>
 #include <string>
 #include "srslte/common/log.h"
-#include "logger.h"
+#include "srslte/common/logger.h"
+#include "srslte/common/logger_stdout.h"
 
 namespace srslte {
 
+typedef std::string* str_ptr;
+
 class log_filter : public srslte::log
 {
 public:
 
   log_filter();
+  log_filter(std::string layer);
   log_filter(std::string layer, logger *logger_, bool tti=false);
 
   void init(std::string layer, logger *logger_, bool tti=false);
@@ -71,6 +75,8 @@ private:
   logger *logger_h;
   bool    do_tti;
 
+  logger_stdout def_logger_stdout;
+
   void all_log(srslte::LOG_LEVEL_ENUM level, uint32_t tti, char *msg);
   void all_log(srslte::LOG_LEVEL_ENUM level, uint32_t tti, char *msg, uint8_t *hex, int size);
   void all_log_line(srslte::LOG_LEVEL_ENUM level, uint32_t tti, std::string file, int line, char *msg);
diff --git a/lib/include/srslte/common/log_stdout.h b/lib/include/srslte/common/log_stdout.h
deleted file mode 100644
index df1b5b5fb..000000000
--- a/lib/include/srslte/common/log_stdout.h
+++ /dev/null
@@ -1,82 +0,0 @@
-/**
- *
- * \section COPYRIGHT
- *
- * Copyright 2013-2015 Software Radio Systems Limited
- *
- * \section LICENSE
- *
- * This file is part of the srsUE library.
- *
- * srsUE is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as
- * published by the Free Software Foundation, either version 3 of
- * the License, or (at your option) any later version.
- *
- * srsUE 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 Affero General Public License for more details.
- *
- * A copy of the GNU Affero General Public License can be found in
- * the LICENSE file in the top-level directory of this distribution
- * and at http://www.gnu.org/licenses/.
- *
- */
-
-/******************************************************************************
- *  File:         log_stout.h
- *
- *  Description:  Logging service through standard output. Inherits log interface
- *
- *  Reference:
- *****************************************************************************/
-
-#ifndef LOGSTDOUT_H
-#define LOGSTDOUT_H
-
-#include <stdarg.h>
-#include <string>
-#include "srslte/common/log.h"
-
-namespace srslte {
-  
-class log_stdout : public log
-{
-public:
-
-  log_stdout(std::string service_name_) : log(service_name_) { }
-  
-  void console(std::string message, ...);
-  void error(std::string message, ...);
-  void warning(std::string message, ...);
-  void info(std::string message, ...);
-  void debug(std::string message, ...);
-
-  // Same with hex dump
-  void error_hex(uint8_t *hex, int size, std::string message, ...);
-  void warning_hex(uint8_t *hex, int size, std::string message, ...);
-  void info_hex(uint8_t *hex, int size, std::string message, ...);
-  void debug_hex(uint8_t *hex, int size, std::string message, ...);
-
-  // Same with line and file info
-  void error_line(std::string file, int line, std::string message, ...);
-  void warning_line(std::string file, int line, std::string message, ...);
-  void info_line(std::string file, int line, std::string message, ...);
-  void debug_line(std::string file, int line, std::string message, ...);
-
-private:
-  void printlog(srslte::LOG_LEVEL_ENUM level, uint32_t tti, std::string file, int line, std::string message, va_list args);
-  void printlog(srslte::LOG_LEVEL_ENUM level, uint32_t tti, std::string message, va_list args);
-
-  void all_log(srslte::LOG_LEVEL_ENUM level, uint32_t tti, char *msg);
-  void all_log(srslte::LOG_LEVEL_ENUM level, uint32_t tti, char *msg, uint8_t *hex, int size);
-  void all_log_line(srslte::LOG_LEVEL_ENUM level, uint32_t tti, std::string file, int line, char *msg);
-  std::string now_time();
-  std::string hex_string(uint8_t *hex, int size);
-};
-
-}
-
-#endif
-  
diff --git a/lib/include/srslte/common/logger.h b/lib/include/srslte/common/logger.h
index 67a897824..95e52922c 100644
--- a/lib/include/srslte/common/logger.h
+++ b/lib/include/srslte/common/logger.h
@@ -26,49 +26,23 @@
 
 /******************************************************************************
  * File:        logger.h
- * Description: Common log object. Maintains a queue of log messages
- *              and runs a thread to read messages and write to file.
- *              Multiple producers, single consumer. If full, producers
- *              increase queue size. If empty, consumer blocks.
+ * Description: Interface for logging output
  *****************************************************************************/
 
 #ifndef LOGGER_H
 #define LOGGER_H
 
 #include <stdio.h>
-#include <deque>
 #include <string>
-#include "srslte/common/threads.h"
 
 namespace srslte {
 
-typedef std::string* str_ptr;
-
-class logger : public thread
+class logger
 {
 public:
-  logger();
-  logger(std::string file);
-  ~logger();
-  void init(std::string file);
-  void log(const char *msg);
-  void log(str_ptr msg);
-
-private:
-  void run_thread(); 
-  void flush();
-
-  FILE*                 logfile;
-  bool                  inited;
-  bool                  not_done;
-  std::string           filename;
-  pthread_cond_t        not_empty;
-  pthread_cond_t        not_full;
-  pthread_mutex_t       mutex;
-  pthread_t             thread;
-  std::deque<str_ptr> buffer;
+  virtual void log(std::string *msg) = 0;
 };
 
-} // namespace srsue
+} // namespace srslte
 
 #endif // LOGGER_H
diff --git a/lib/include/srslte/common/logger_file.h b/lib/include/srslte/common/logger_file.h
new file mode 100644
index 000000000..1bc41f883
--- /dev/null
+++ b/lib/include/srslte/common/logger_file.h
@@ -0,0 +1,76 @@
+/**
+ *
+ * \section COPYRIGHT
+ *
+ * Copyright 2013-2015 Software Radio Systems Limited
+ *
+ * \section LICENSE
+ *
+ * This file is part of the srsUE library.
+ *
+ * srsUE is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of
+ * the License, or (at your option) any later version.
+ *
+ * srsUE 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 Affero General Public License for more details.
+ *
+ * A copy of the GNU Affero General Public License can be found in
+ * the LICENSE file in the top-level directory of this distribution
+ * and at http://www.gnu.org/licenses/.
+ *
+ */
+
+/******************************************************************************
+ * File:        logger_file.h
+ * Description: Common log object. Maintains a queue of log messages
+ *              and runs a thread to read messages and write to file.
+ *              Multiple producers, single consumer. If full, producers
+ *              increase queue size. If empty, consumer blocks.
+ *****************************************************************************/
+
+#ifndef LOGGER_FILE_H
+#define LOGGER_FILE_H
+
+#include <stdio.h>
+#include <deque>
+#include <string>
+#include "srslte/common/logger.h"
+#include "srslte/common/threads.h"
+
+namespace srslte {
+
+typedef std::string* str_ptr;
+
+class logger_file : public thread, public logger
+{
+public:
+  logger_file();
+  logger_file(std::string file);
+  ~logger_file();
+  void init(std::string file);
+  // Implementation of log_out
+  void log(str_ptr msg);
+  void log(const char *msg);
+
+private:
+  void run_thread(); 
+  void flush();
+
+  FILE*                 logfile;
+  bool                  inited;
+  bool                  not_done;
+  std::string           filename;
+  pthread_cond_t        not_empty;
+  pthread_cond_t        not_full;
+  pthread_mutex_t       mutex;
+  pthread_t             thread;
+  std::deque<str_ptr> buffer;
+};
+
+} // namespace srsue
+
+#endif // LOGGER_H
diff --git a/lib/include/srslte/common/logger_stdout.h b/lib/include/srslte/common/logger_stdout.h
new file mode 100644
index 000000000..00e4ffa7a
--- /dev/null
+++ b/lib/include/srslte/common/logger_stdout.h
@@ -0,0 +1,51 @@
+/**
+ *
+ * \section COPYRIGHT
+ *
+ * Copyright 2013-2015 Software Radio Systems Limited
+ *
+ * \section LICENSE
+ *
+ * This file is part of the srsUE library.
+ *
+ * srsUE is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of
+ * the License, or (at your option) any later version.
+ *
+ * srsUE 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 Affero General Public License for more details.
+ *
+ * A copy of the GNU Affero General Public License can be found in
+ * the LICENSE file in the top-level directory of this distribution
+ * and at http://www.gnu.org/licenses/.
+ *
+ */
+
+/******************************************************************************
+ * File:        logger_stdout.h
+ * Description: Interface for logging output
+ *****************************************************************************/
+
+#ifndef LOGGER_STDOUT_H
+#define LOGGER_STDOUT_H
+
+#include <stdio.h>
+#include <string>
+#include "srslte/common/logger.h"
+
+namespace srslte {
+
+  class logger_stdout : public logger
+  {
+  public:
+    void log(std::string *msg) {
+      fprintf(stdout, "%s", msg->c_str());
+    }
+  };
+
+} // namespace srslte
+
+#endif // LOGGER_H
diff --git a/lib/src/common/log_filter.cc b/lib/src/common/log_filter.cc
index 12f004d5e..899a224d6 100644
--- a/lib/src/common/log_filter.cc
+++ b/lib/src/common/log_filter.cc
@@ -40,6 +40,11 @@ log_filter::log_filter()
   do_tti = false; 
 }
 
+log_filter::log_filter(std::string layer)
+{
+  init(layer, &def_logger_stdout, tti);
+}
+
 log_filter::log_filter(std::string layer, logger *logger_, bool tti)
 {
   init(layer, logger_, tti);
diff --git a/lib/src/common/log_stdout.cc b/lib/src/common/log_stdout.cc
deleted file mode 100644
index 2e50b755e..000000000
--- a/lib/src/common/log_stdout.cc
+++ /dev/null
@@ -1,290 +0,0 @@
-/**
- *
- * \section COPYRIGHT
- *
- * Copyright 2013-2015 Software Radio Systems Limited
- *
- * \section LICENSE
- *
- * This file is part of the srsUE library.
- *
- * srsUE is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as
- * published by the Free Software Foundation, either version 3 of
- * the License, or (at your option) any later version.
- *
- * srsUE 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 Affero General Public License for more details.
- *
- * A copy of the GNU Affero General Public License can be found in
- * the LICENSE file in the top-level directory of this distribution
- * and at http://www.gnu.org/licenses/.
- *
- */
-
-#include <iostream>
-#include <sstream>
-#include <iomanip>
-#include <string>
-#include <string.h>
-#include <strings.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <sys/time.h>
-#include <stdarg.h>
-#include <string>
-
-#include "srslte/common/log_stdout.h"
-
-
-using namespace std; 
-
-namespace srslte {
-
-void log_stdout::all_log(srslte::LOG_LEVEL_ENUM level,
-                         uint32_t               tti,
-                         char                  *msg)
-{
-  std::stringstream ss;
-
-  ss << now_time() << " ";
-  ss << "[" <<get_service_name() << "] ";
-  ss << log_level_text[level] << " ";
-  ss << "[" << std::setfill('0') << std::setw(5) << tti << "] ";
-  ss << msg;
-
-  cout << ss.str();
-}
-
-void log_stdout::all_log(srslte::LOG_LEVEL_ENUM level,
-                         uint32_t               tti,
-                         char                  *msg,
-                         uint8_t               *hex,
-                         int                    size)
-{
-  std::stringstream ss;
-
-  ss << now_time() << " ";
-  ss << "[" <<get_service_name() << "] ";
-  ss << log_level_text[level] << " ";
-  ss << "[" << std::setfill('0') << std::setw(5) << tti << "] ";
-  ss << msg << std::endl;
-  ss << hex_string(hex, size);
-
-  cout << ss.str();
-}
-
-void log_stdout::all_log_line(srslte::LOG_LEVEL_ENUM level,
-                              uint32_t               tti,
-                              std::string            file,
-                              int                    line,
-                              char                  *msg)
-{
-  std::stringstream ss;
-
-  ss << now_time() << " ";
-  ss << "[" <<get_service_name() << "] ";
-  ss << log_level_text[level] << " ";
-  ss << "[" << std::setfill('0') << std::setw(5) << tti << "] ";
-  ss << msg;
-
-  cout << ss.str();
-}
-
-void log_stdout::console(std::string message, ...) {
-  char     *args_msg;
-  va_list   args;
-  va_start(args, message);
-  if(vasprintf(&args_msg, message.c_str(), args) > 0)
-    printf("%s",args_msg); // Print directly to stdout
-  va_end(args);
-  free(args_msg);
-}
-
-void log_stdout::error(std::string message, ...) {
-  if (level >= LOG_LEVEL_ERROR) {
-    char     *args_msg;
-    va_list   args;
-    va_start(args, message);
-    if(vasprintf(&args_msg, message.c_str(), args) > 0)
-      all_log(LOG_LEVEL_ERROR, tti, args_msg);
-    va_end(args);
-    free(args_msg);
-  }
-}
-void log_stdout::warning(std::string message, ...) {
-  if (level >= LOG_LEVEL_WARNING) {
-    char     *args_msg;
-    va_list   args;
-    va_start(args, message);
-    if(vasprintf(&args_msg, message.c_str(), args) > 0)
-      all_log(LOG_LEVEL_WARNING, tti, args_msg);
-    va_end(args);
-    free(args_msg);
-  }
-}
-void log_stdout::info(std::string message, ...) {
-  if (level >= LOG_LEVEL_INFO) {
-    char     *args_msg;
-    va_list   args;
-    va_start(args, message);
-    if(vasprintf(&args_msg, message.c_str(), args) > 0)
-      all_log(LOG_LEVEL_INFO, tti, args_msg);
-    va_end(args);
-    free(args_msg);
-  }
-}
-void log_stdout::debug(std::string message, ...) {
-  if (level >= LOG_LEVEL_DEBUG) {
-    char     *args_msg;
-    va_list   args;
-    va_start(args, message);
-    if(vasprintf(&args_msg, message.c_str(), args) > 0)
-      all_log(LOG_LEVEL_DEBUG, tti, args_msg);
-    va_end(args);
-    free(args_msg);
-  }
-}
-
-void log_stdout::error_hex(uint8_t *hex, int size, std::string message, ...) {
-  if (level >= LOG_LEVEL_ERROR) {
-    char     *args_msg;
-    va_list   args;
-    va_start(args, message);
-    if(vasprintf(&args_msg, message.c_str(), args) > 0)
-      all_log(LOG_LEVEL_ERROR, tti, args_msg, hex, size);
-    va_end(args);
-    free(args_msg);
-  }
-}
-void log_stdout::warning_hex(uint8_t *hex, int size, std::string message, ...) {
-  if (level >= LOG_LEVEL_WARNING) {
-    char     *args_msg;
-    va_list   args;
-    va_start(args, message);
-    if(vasprintf(&args_msg, message.c_str(), args) > 0)
-      all_log(LOG_LEVEL_WARNING, tti, args_msg, hex, size);
-    va_end(args);
-    free(args_msg);
-  }
-}
-void log_stdout::info_hex(uint8_t *hex, int size, std::string message, ...) {
-  if (level >= LOG_LEVEL_INFO) {
-    char     *args_msg;
-    va_list   args;
-    va_start(args, message);
-    if(vasprintf(&args_msg, message.c_str(), args) > 0)
-      all_log(LOG_LEVEL_INFO, tti, args_msg, hex, size);
-    va_end(args);
-    free(args_msg);
-  }
-}
-void log_stdout::debug_hex(uint8_t *hex, int size, std::string message, ...) {
-  if (level >= LOG_LEVEL_DEBUG) {
-    char     *args_msg;
-    va_list   args;
-    va_start(args, message);
-    if(vasprintf(&args_msg, message.c_str(), args) > 0)
-      all_log(LOG_LEVEL_DEBUG, tti, args_msg, hex, size);
-    va_end(args);
-    free(args_msg);
-  }
-}
-
-void log_stdout::error_line(std::string file, int line, std::string message, ...)
-{
-  if (level >= LOG_LEVEL_ERROR) {
-    char     *args_msg;
-    va_list   args;
-    va_start(args, message);
-    if(vasprintf(&args_msg, message.c_str(), args) > 0)
-      all_log_line(LOG_LEVEL_ERROR, tti, file, line, args_msg);
-    va_end(args);
-    free(args_msg);
-  }
-}
-
-void log_stdout::warning_line(std::string file, int line, std::string message, ...)
-{
-  if (level >= LOG_LEVEL_WARNING) {
-    char     *args_msg;
-    va_list   args;
-    va_start(args, message);
-    if(vasprintf(&args_msg, message.c_str(), args) > 0)
-      all_log_line(LOG_LEVEL_WARNING, tti, file, line, args_msg);
-    va_end(args);
-    free(args_msg);
-  }
-}
-
-void log_stdout::info_line(std::string file, int line, std::string message, ...)
-{
-  if (level >= LOG_LEVEL_INFO) {
-    char     *args_msg;
-    va_list   args;
-    va_start(args, message);
-    if(vasprintf(&args_msg, message.c_str(), args) > 0)
-      all_log_line(LOG_LEVEL_INFO, tti, file, line, args_msg);
-    va_end(args);
-    free(args_msg);
-  }
-}
-
-void log_stdout::debug_line(std::string file, int line, std::string message, ...)
-{
-  if (level >= LOG_LEVEL_DEBUG) {
-    char     *args_msg;
-    va_list   args;
-    va_start(args, message);
-    if(vasprintf(&args_msg, message.c_str(), args) > 0)
-      all_log_line(LOG_LEVEL_DEBUG, tti, file, line, args_msg);
-    va_end(args);
-    free(args_msg);
-  }
-}
-
-
-
-std::string log_stdout::now_time()
-{
-  struct timeval rawtime;
-  struct tm * timeinfo;
-  char buffer[64];
-  char us[16];
-  
-  gettimeofday(&rawtime, NULL);
-  timeinfo = localtime(&rawtime.tv_sec);
-  
-  strftime(buffer,64,"%H:%M:%S",timeinfo);
-  strcat(buffer,".");
-  snprintf(us,16,"%ld",rawtime.tv_usec);
-  strcat(buffer,us);
-  
-  return std::string(buffer);
-}
-
-std::string log_stdout::hex_string(uint8_t *hex, int size)
-{
-  std::stringstream ss;
-  int c = 0;
-
-  ss << std::hex << std::setfill('0');
-  if(hex_limit >= 0) {
-    size = (size > hex_limit) ? hex_limit : size;
-  }
-  while(c < size) {
-    ss << "             " << std::setw(4) << static_cast<unsigned>(c) << ": ";
-    int tmp = (size-c < 16) ? size-c : 16;
-    for(int i=0;i<tmp;i++) {
-      ss << std::setw(2) << static_cast<unsigned>(hex[c++]) << " ";
-    }
-    ss << "\n";
-  }
-  return ss.str();
-}
-
-}
-
-  
diff --git a/lib/src/common/logger.cc b/lib/src/common/logger_file.cc
similarity index 85%
rename from lib/src/common/logger.cc
rename to lib/src/common/logger_file.cc
index b48f6e1c7..94e5e8405 100644
--- a/lib/src/common/logger.cc
+++ b/lib/src/common/logger_file.cc
@@ -27,20 +27,20 @@
 
 #define LOG_BUFFER_SIZE 1024*32
 
-#include "srslte/common/logger.h"
+#include "srslte/common/logger_file.h"
 
 using namespace std;
 
 namespace srslte{
 
-logger::logger()
+logger_file::logger_file()
   :inited(false)
   ,not_done(true)
 {}
 
-logger::~logger() {
+logger_file::~logger_file() {
   not_done = false;
-  log("Closing log");
+  log(new std::string("Closing log"));
   if(inited) {
     wait_thread_finish();
     flush();
@@ -48,7 +48,7 @@ logger::~logger() {
   }
 }
 
-void logger::init(std::string file) {
+void logger_file::init(std::string file) {
   pthread_mutex_init(&mutex, NULL); 
   pthread_cond_init(&not_empty, NULL);
   pthread_cond_init(&not_full, NULL);
@@ -61,19 +61,18 @@ void logger::init(std::string file) {
   inited = true;
 }
 
-void logger::log(const char *msg) {
-  str_ptr s_ptr(new std::string(msg));
-  log(s_ptr);
+void logger_file::log(const char *msg) {
+  log(new std::string(msg));
 }
 
-void logger::log(str_ptr msg) {
+void logger_file::log(str_ptr msg) {
   pthread_mutex_lock(&mutex);
   buffer.push_back(msg);
   pthread_cond_signal(&not_empty);
   pthread_mutex_unlock(&mutex);
 }
 
-void logger::run_thread() {
+void logger_file::run_thread() {
   while(not_done) {
   pthread_mutex_lock(&mutex);
     while(buffer.empty()) {
@@ -89,7 +88,7 @@ void logger::run_thread() {
   }
 }
 
-void logger::flush() {
+void logger_file::flush() {
   std::deque<str_ptr>::iterator it;
   for(it=buffer.begin();it!=buffer.end();it++)
   {
diff --git a/lib/test/common/log_filter_test.cc b/lib/test/common/log_filter_test.cc
index d48821dac..350e42837 100644
--- a/lib/test/common/log_filter_test.cc
+++ b/lib/test/common/log_filter_test.cc
@@ -29,11 +29,12 @@
 
 #include <stdio.h>
 #include "srslte/common/log_filter.h"
+#include "srslte/common/logger_file.h"
 
 using namespace srslte;
 
 typedef struct {
-  logger *l;
+  logger_file *l;
   int thread_id;
 }args_t;
 
@@ -78,7 +79,7 @@ void* thread_loop_hex(void *a) {
 }
 
 void write(std::string filename) {
-  logger l;
+  logger_file l;
   l.init(filename);
   pthread_t threads[NTHREADS];
   args_t    args[NTHREADS];
diff --git a/lib/test/common/logger_test.cc b/lib/test/common/logger_test.cc
index 1baf5260f..845d4c104 100644
--- a/lib/test/common/logger_test.cc
+++ b/lib/test/common/logger_test.cc
@@ -29,12 +29,12 @@
 
 #include <stdlib.h>
 #include <stdio.h>
-#include "srslte/common/logger.h"
+#include "srslte/common/logger_file.h"
 
 using namespace srslte;
 
 typedef struct {
-  logger *l;
+  logger_file *l;
   int thread_id;
 }args_t;
 
@@ -44,13 +44,13 @@ void* thread_loop(void *a) {
   for(int i=0;i<NMSGS;i++)
   {
     sprintf(buf, "Thread %d: %d", args->thread_id, i);
-    args->l->log(buf);
+    args->l->log(new std::string(buf));
   }
   return NULL;
 }
 
 void write(std::string filename) {
-  logger l;
+  logger_file l;
   l.init(filename);
   pthread_t threads[NTHREADS];
   args_t    args[NTHREADS];
diff --git a/lib/test/upper/rlc_am_test.cc b/lib/test/upper/rlc_am_test.cc
index bacc819ec..dfe62905e 100644
--- a/lib/test/upper/rlc_am_test.cc
+++ b/lib/test/upper/rlc_am_test.cc
@@ -25,7 +25,8 @@
  */
 
 #include <iostream>
-#include "srslte/common/log_stdout.h"
+#include "srslte/common/log_filter.h"
+#include "srslte/common/logger_stdout.h"
 #include "srslte/upper/rlc_am.h"
 #include <assert.h>
 #define NBUFS 5
@@ -73,8 +74,8 @@ public:
 
 void basic_test()
 {
-  srslte::log_stdout log1("RLC_AM_1");
-  srslte::log_stdout log2("RLC_AM_2");
+  srslte::log_filter log1("RLC_AM_1");
+  srslte::log_filter log2("RLC_AM_2");
   log1.set_level(srslte::LOG_LEVEL_DEBUG);
   log2.set_level(srslte::LOG_LEVEL_DEBUG);
   log1.set_hex_limit(-1);
@@ -152,8 +153,8 @@ void basic_test()
 
 void concat_test()
 {
-  srslte::log_stdout log1("RLC_AM_1");
-  srslte::log_stdout log2("RLC_AM_2");
+  srslte::log_filter log1("RLC_AM_1");
+  srslte::log_filter log2("RLC_AM_2");
   log1.set_level(srslte::LOG_LEVEL_DEBUG);
   log2.set_level(srslte::LOG_LEVEL_DEBUG);
   log1.set_hex_limit(-1);
@@ -216,8 +217,8 @@ void concat_test()
 
 void segment_test()
 {
-  srslte::log_stdout log1("RLC_AM_1");
-  srslte::log_stdout log2("RLC_AM_2");
+  srslte::log_filter log1("RLC_AM_1");
+  srslte::log_filter log2("RLC_AM_2");
   log1.set_level(srslte::LOG_LEVEL_DEBUG);
   log2.set_level(srslte::LOG_LEVEL_DEBUG);
   log1.set_hex_limit(-1);
@@ -298,8 +299,8 @@ void segment_test()
 
 void retx_test()
 {
-  srslte::log_stdout log1("RLC_AM_1");
-  srslte::log_stdout log2("RLC_AM_2");
+  srslte::log_filter log1("RLC_AM_1");
+  srslte::log_filter log2("RLC_AM_2");
   log1.set_level(srslte::LOG_LEVEL_DEBUG);
   log2.set_level(srslte::LOG_LEVEL_DEBUG);
   log1.set_hex_limit(-1);
@@ -394,8 +395,8 @@ void resegment_test_1()
   // PDUs:                |  10  |  10  |  10  |  10  |  10  |
   // Retx PDU segments:                 | 5 | 5|
 
-  srslte::log_stdout log1("RLC_AM_1");
-  srslte::log_stdout log2("RLC_AM_2");
+  srslte::log_filter log1("RLC_AM_1");
+  srslte::log_filter log2("RLC_AM_2");
   log1.set_level(srslte::LOG_LEVEL_DEBUG);
   log2.set_level(srslte::LOG_LEVEL_DEBUG);
   log1.set_hex_limit(-1);
@@ -503,8 +504,8 @@ void resegment_test_2()
   // PDUs:              | 5 |  10  |     20     |  10  | 5 |
   // Retx PDU segments:            |  10  |  10 |
 
-  srslte::log_stdout log1("RLC_AM_1");
-  srslte::log_stdout log2("RLC_AM_2");
+  srslte::log_filter log1("RLC_AM_1");
+  srslte::log_filter log2("RLC_AM_2");
   log1.set_level(srslte::LOG_LEVEL_DEBUG);
   log2.set_level(srslte::LOG_LEVEL_DEBUG);
   log1.set_hex_limit(-1);
@@ -609,8 +610,8 @@ void resegment_test_3()
   // PDUs:              | 5 | 5|      20     |  10  |  10  |
   // Retx PDU segments:        |  10  |  10  |
 
-  srslte::log_stdout log1("RLC_AM_1");
-  srslte::log_stdout log2("RLC_AM_2");
+  srslte::log_filter log1("RLC_AM_1");
+  srslte::log_filter log2("RLC_AM_2");
   log1.set_level(srslte::LOG_LEVEL_DEBUG);
   log2.set_level(srslte::LOG_LEVEL_DEBUG);
   log1.set_hex_limit(-1);
@@ -711,8 +712,8 @@ void resegment_test_4()
   // PDUs:              | 5 | 5|         30         | 5 | 5|
   // Retx PDU segments:        |    15    |    15   |
 
-  srslte::log_stdout log1("RLC_AM_1");
-  srslte::log_stdout log2("RLC_AM_2");
+  srslte::log_filter log1("RLC_AM_1");
+  srslte::log_filter log2("RLC_AM_2");
   log1.set_level(srslte::LOG_LEVEL_DEBUG);
   log2.set_level(srslte::LOG_LEVEL_DEBUG);
   log1.set_hex_limit(-1);
@@ -813,8 +814,8 @@ void resegment_test_5()
   // PDUs:              |2|3|            40            |3|2|
   // Retx PDU segments:     |     20      |     20     |
 
-  srslte::log_stdout log1("RLC_AM_1");
-  srslte::log_stdout log2("RLC_AM_2");
+  srslte::log_filter log1("RLC_AM_1");
+  srslte::log_filter log2("RLC_AM_2");
   log1.set_level(srslte::LOG_LEVEL_DEBUG);
   log2.set_level(srslte::LOG_LEVEL_DEBUG);
   log1.set_hex_limit(-1);
@@ -914,8 +915,8 @@ void resegment_test_6()
   // PDUs:                |10|10|10|                270               | 54 |
   // Retx PDU segments:            |  120           |      150        |
 
-  srslte::log_stdout log1("RLC_AM_1");
-  srslte::log_stdout log2("RLC_AM_2");
+  srslte::log_filter log1("RLC_AM_1");
+  srslte::log_filter log2("RLC_AM_2");
   log1.set_level(srslte::LOG_LEVEL_DEBUG);
   log2.set_level(srslte::LOG_LEVEL_DEBUG);
   log1.set_hex_limit(-1);
diff --git a/lib/test/upper/rlc_um_test.cc b/lib/test/upper/rlc_um_test.cc
index dfc2883d8..491d816cc 100644
--- a/lib/test/upper/rlc_um_test.cc
+++ b/lib/test/upper/rlc_um_test.cc
@@ -25,7 +25,7 @@
  */
 
 #include <iostream>
-#include "srslte/common/log_stdout.h"
+#include "srslte/common/log_filter.h"
 #include "srslte/upper/rlc_um.h"
 #include <assert.h>
 
@@ -78,8 +78,8 @@ public:
 
 void basic_test()
 {
-  srslte::log_stdout log1("RLC_UM_1");
-  srslte::log_stdout log2("RLC_UM_2");
+  srslte::log_filter log1("RLC_UM_1");
+  srslte::log_filter log2("RLC_UM_2");
   log1.set_level(srslte::LOG_LEVEL_DEBUG);
   log2.set_level(srslte::LOG_LEVEL_DEBUG);
   log1.set_hex_limit(-1);
@@ -146,8 +146,8 @@ void basic_test()
 
 void loss_test()
 {
-  srslte::log_stdout log1("RLC_UM_1");
-  srslte::log_stdout log2("RLC_UM_2");
+  srslte::log_filter log1("RLC_UM_1");
+  srslte::log_filter log2("RLC_UM_2");
   log1.set_level(srslte::LOG_LEVEL_DEBUG);
   log2.set_level(srslte::LOG_LEVEL_DEBUG);
   log1.set_hex_limit(-1);
diff --git a/srsenb/hdr/enb.h b/srsenb/hdr/enb.h
index 8db5c85b6..b28d12ab4 100644
--- a/srsenb/hdr/enb.h
+++ b/srsenb/hdr/enb.h
@@ -50,7 +50,7 @@
 #include "srslte/common/bcd_helpers.h"
 #include "srslte/common/buffer_pool.h"
 #include "srslte/interfaces/ue_interfaces.h"
-#include "srslte/common/logger.h"
+#include "srslte/common/logger_file.h"
 #include "srslte/common/log_filter.h"
 #include "srslte/common/mac_pcap.h"
 #include "srslte/interfaces/sched_interface.h"
@@ -173,15 +173,15 @@ private:
   srsenb::gtpu       gtpu;
   srsenb::s1ap       s1ap;
 
-  srslte::logger     logger;
-  srslte::log_filter rf_log;
-  std::vector<void*> phy_log;
-  srslte::log_filter mac_log;
-  srslte::log_filter rlc_log;
-  srslte::log_filter pdcp_log;
-  srslte::log_filter rrc_log;
-  srslte::log_filter gtpu_log;
-  srslte::log_filter s1ap_log;
+  srslte::logger_file logger;
+  srslte::log_filter  rf_log;
+  std::vector<void*>  phy_log;
+  srslte::log_filter  mac_log;
+  srslte::log_filter  rlc_log;
+  srslte::log_filter  pdcp_log;
+  srslte::log_filter  rrc_log;
+  srslte::log_filter  gtpu_log;
+  srslte::log_filter  s1ap_log;
 
   srslte::byte_buffer_pool *pool;
 
diff --git a/srsenb/test/mac/scheduler_test.cc b/srsenb/test/mac/scheduler_test.cc
index 53bb28e18..e9afd61cb 100644
--- a/srsenb/test/mac/scheduler_test.cc
+++ b/srsenb/test/mac/scheduler_test.cc
@@ -6,7 +6,7 @@
 
 #include "srslte/interfaces/enb_interfaces.h"
 #include "srslte/interfaces/sched_interface.h"
-#include "srslte/common/log_stdout.h"
+#include "srslte/common/log_filter.h"
 #include "srslte/radio/radio.h"
 #include "srslte/phy/utils/debug.h"
 
@@ -62,7 +62,7 @@ private:
 
 
 // Create classes
-srslte::log_stdout   log_out("ALL");
+srslte::log_filter   log_out("ALL");
 srsenb::sched        my_sched;
 srsenb::dl_metric_rr dl_metric;
 srsenb::ul_metric_rr ul_metric;
diff --git a/srsenb/test/upper/ip_test.cc b/srsenb/test/upper/ip_test.cc
index f2ec84f64..41c430f29 100644
--- a/srsenb/test/upper/ip_test.cc
+++ b/srsenb/test/upper/ip_test.cc
@@ -16,7 +16,7 @@
 #include "srslte/interfaces/enb_interfaces.h"
 #include "srslte/common/common.h"
 #include "srslte/common/buffer_pool.h"
-#include "srslte/common/logger.h"
+#include "srslte/common/logger_file.h"
 #include "srslte/common/log_filter.h"
 #include "srslte/upper/rlc.h"
 #include "srslte/radio/radio.h"
@@ -320,11 +320,11 @@ private:
 
 
 // Create classes
-srslte::logger logger;
-srslte::log_filter log_phy;
-srslte::log_filter log_mac;
-srslte::log_filter log_rlc;
-srslte::log_filter log_tester;
+srslte::logger_file logger;
+srslte::log_filter  log_phy;
+srslte::log_filter  log_mac;
+srslte::log_filter  log_rlc;
+srslte::log_filter  log_tester;
 srsenb::phy my_phy;
 srsenb::mac my_mac;
 srslte::rlc  my_rlc;
diff --git a/srsue/hdr/ue.h b/srsue/hdr/ue.h
index f401697e9..6fb593d55 100644
--- a/srsue/hdr/ue.h
+++ b/srsue/hdr/ue.h
@@ -49,7 +49,7 @@
 
 #include "srslte/common/buffer_pool.h"
 #include "srslte/interfaces/ue_interfaces.h"
-#include "srslte/common/logger.h"
+#include "srslte/common/logger_file.h"
 #include "srslte/common/log_filter.h"
 
 #include "ue_metrics_interface.h"
@@ -173,16 +173,16 @@ private:
   srslte::gw         gw;
   srsue::usim        usim;
 
-  srslte::logger     logger;
-  srslte::log_filter rf_log;
-  srslte::log_filter phy_log;
-  srslte::log_filter mac_log;
-  srslte::log_filter rlc_log;
-  srslte::log_filter pdcp_log;
-  srslte::log_filter rrc_log;
-  srslte::log_filter nas_log;
-  srslte::log_filter gw_log;
-  srslte::log_filter usim_log;
+  srslte::logger_file logger;
+  srslte::log_filter  rf_log;
+  srslte::log_filter  phy_log;
+  srslte::log_filter  mac_log;
+  srslte::log_filter  rlc_log;
+  srslte::log_filter  pdcp_log;
+  srslte::log_filter  rrc_log;
+  srslte::log_filter  nas_log;
+  srslte::log_filter  gw_log;
+  srslte::log_filter  usim_log;
 
   srslte::byte_buffer_pool *pool;
 
diff --git a/srsue/test/mac/mac_test.cc b/srsue/test/mac/mac_test.cc
index 7c7e19cf0..cb2ad2945 100644
--- a/srsue/test/mac/mac_test.cc
+++ b/srsue/test/mac/mac_test.cc
@@ -32,7 +32,7 @@
 #include "srslte/radio/radio_multi.h"
 #include "phy/phy.h"
 #include "srslte/interfaces/ue_interfaces.h"
-#include "srslte/common/log_stdout.h"
+#include "srslte/common/log_filter.h"
 #include "mac/mac.h"
 #include "srslte/common/mac_pcap.h"
 
@@ -427,7 +427,7 @@ private:
 
 int main(int argc, char *argv[])
 {
-  srslte::log_stdout mac_log("MAC"), phy_log("PHY"); 
+  srslte::log_filter mac_log("MAC"), phy_log("PHY");
   rlctest my_rlc;  
   parse_args(&prog_args, argc, argv);
   
diff --git a/srsue/test/phy/ue_itf_test_prach.cc b/srsue/test/phy/ue_itf_test_prach.cc
index 91df6a2fc..76adcacdf 100644
--- a/srsue/test/phy/ue_itf_test_prach.cc
+++ b/srsue/test/phy/ue_itf_test_prach.cc
@@ -29,7 +29,7 @@
 #include "srslte/phy/utils/debug.h"
 #include "phy/phy.h"
 #include "srslte/interfaces/ue_interfaces.h"
-#include "srslte/common/log_stdout.h"
+#include "srslte/common/log_filter.h"
 #include "srslte/radio/radio_multi.h"
 
 /**********************************************************************
@@ -330,7 +330,7 @@ srslte::radio_multi   radio;
   
 int main(int argc, char *argv[])
 {
-  srslte::log_stdout log("PHY");
+  srslte::log_filter log("PHY");
   
   parse_args(&prog_args, argc, argv);
 
diff --git a/srsue/test/phy/ue_itf_test_sib1.cc b/srsue/test/phy/ue_itf_test_sib1.cc
index 08116b22c..10e78b23a 100644
--- a/srsue/test/phy/ue_itf_test_sib1.cc
+++ b/srsue/test/phy/ue_itf_test_sib1.cc
@@ -28,7 +28,7 @@
 
 #include "srslte/phy/utils/debug.h"
 #include "phy/phy.h"
-#include "srslte/common/log_stdout.h"
+#include "srslte/common/log_filter.h"
 #include "srslte/interfaces/ue_interfaces.h"
 #include "srslte/radio/radio_multi.h"
 
@@ -153,7 +153,7 @@ srslte::radio_multi radio;
 
 int main(int argc, char *argv[])
 {
-  srslte::log_stdout log("PHY");
+  srslte::log_filter log("PHY");
   
   parse_args(&prog_args, argc, argv);
 
diff --git a/srsue/test/upper/ip_test.cc b/srsue/test/upper/ip_test.cc
index a26f273a8..93021cd2b 100644
--- a/srsue/test/upper/ip_test.cc
+++ b/srsue/test/upper/ip_test.cc
@@ -21,7 +21,7 @@
 #include "srslte/common/threads.h"
 #include "srslte/common/common.h"
 #include "srslte/common/buffer_pool.h"
-#include "srslte/common/logger.h"
+#include "srslte/common/logger_file.h"
 #include "srslte/common/log_filter.h"
 #include "srslte/upper/rlc.h"
 #include "upper/rrc.h"
@@ -464,12 +464,12 @@ private:
 
 
 // Create classes
-srslte::logger logger;
-srslte::log_filter log_phy;
-srslte::log_filter log_mac;
-srslte::log_filter log_rlc;
-srslte::log_filter log_tester;
-srslte::mac_pcap   mac_pcap;
+srslte::logger_file logger;
+srslte::log_filter  log_phy;
+srslte::log_filter  log_mac;
+srslte::log_filter  log_rlc;
+srslte::log_filter  log_tester;
+srslte::mac_pcap    mac_pcap;
 srsue::phy my_phy;
 srsue::mac my_mac;
 srslte::rlc rlc;
diff --git a/srsue/test/upper/rrc_reconfig_test.cc b/srsue/test/upper/rrc_reconfig_test.cc
index 25629bcd7..c9df04e32 100644
--- a/srsue/test/upper/rrc_reconfig_test.cc
+++ b/srsue/test/upper/rrc_reconfig_test.cc
@@ -26,12 +26,12 @@
 
 #include <iostream>
 #include <srslte/srslte.h>
-#include "srslte/common/log_stdout.h"
+#include "srslte/common/log_filter.h"
 #include "srslte/asn1/liblte_rrc.h"
 #include "srslte/asn1/liblte_mme.h"
 
 void nas_test() {
-  srslte::log_stdout log1("NAS");
+  srslte::log_filter log1("NAS");
   log1.set_level(srslte::LOG_LEVEL_DEBUG);
   log1.set_hex_limit(-1);
 
@@ -91,7 +91,7 @@ void nas_test() {
 }
 
 void basic_test() {
-  srslte::log_stdout log1("RRC");
+  srslte::log_filter log1("RRC");
   log1.set_level(srslte::LOG_LEVEL_DEBUG);
   log1.set_hex_limit(-1);
 
diff --git a/srsue/test/upper/usim_test.cc b/srsue/test/upper/usim_test.cc
index 8e7d53bfe..c8a248184 100644
--- a/srsue/test/upper/usim_test.cc
+++ b/srsue/test/upper/usim_test.cc
@@ -26,7 +26,7 @@
 
 #include <iostream>
 #include "upper/usim.h"
-#include "srslte/common/log_stdout.h"
+#include "srslte/common/log_filter.h"
 #include <assert.h>
 
 using namespace srsue;
@@ -67,7 +67,7 @@ uint16 mnc = 93;
 
 int main(int argc, char **argv)
 {
-  srslte::log_stdout usim_log("USIM");
+  srslte::log_filter usim_log("USIM");
   bool    net_valid;
   uint8_t res[16];