diff --git a/targets/ARCH/USRP/USERSPACE/LIB/usrp_lib.cpp b/targets/ARCH/USRP/USERSPACE/LIB/usrp_lib.cpp
index 2ae124f29d..abeaf4e4c8 100644
--- a/targets/ARCH/USRP/USERSPACE/LIB/usrp_lib.cpp
+++ b/targets/ARCH/USRP/USERSPACE/LIB/usrp_lib.cpp
@@ -1039,7 +1039,7 @@ extern "C" {
 
         if(device_adds.size() == 0)  {
             double usrp_master_clock = 184.32e6;
-            std::string args = "type=x300, addr=192.168.30.2";
+            std::string args = "type=x300";
 
             // workaround for an api problem, master clock has to be set with the constructor not via set_master_clock_rate
             args += boost::str(boost::format(",master_clock_rate=%f") % usrp_master_clock);
diff --git a/targets/RT/USER/lte-ru.c b/targets/RT/USER/lte-ru.c
index 9d5b69adf5..41dd01405c 100644
--- a/targets/RT/USER/lte-ru.c
+++ b/targets/RT/USER/lte-ru.c
@@ -1525,9 +1525,10 @@ volatile int16_t phy_tx_end;
 static void* ru_thread_tx( void* param ) {
   RU_t *ru         = (RU_t*)param;
   RU_proc_t *proc  = &ru->proc;
+  LTE_DL_FRAME_PARMS *fp = ru->frame_parms;
   cpu_set_t cpuset;
   CPU_ZERO(&cpuset);
-
+  char filename[256];
 
   thread_top_init("ru_thread_tx",1,400000,500000,500000);
 
@@ -1560,7 +1561,20 @@ static void* ru_thread_tx( void* param ) {
       if ((ru->fh_north_asynch_in == NULL) && (ru->fh_south_out)) ru->fh_south_out(ru);
   	      
       if (ru->fh_north_out) ru->fh_north_out(ru);
+    }
+    else {
+      for (int i=0; i<ru->nb_tx; i++) {
+	if(proc->frame_tx == 2) {
+	  sprintf(filename,"txdataF%d_frame%d_sf%d.m",i,proc->frame_tx,proc->subframe_tx);
+	  LOG_M(filename,"txdataF_frame",ru->common.txdataF_BF[i],fp->symbols_per_tti*fp->ofdm_symbol_size, 1, 1);
 	}
+	if(proc->frame_tx == 2 && proc->subframe_tx==0){
+	  sprintf(filename,"txdata%d_frame%d.m",i,proc->frame_tx);
+	  LOG_M(filename,"txdata_frame",ru->common.txdata[i],fp->samples_per_tti*10, 1, 1);
+	}
+      }
+    }
+
     release_thread(&proc->mutex_eNBs,&proc->instance_cnt_eNBs,"ru_thread_tx");
     
     pthread_mutex_lock( &proc->mutex_eNBs );
@@ -1588,7 +1602,7 @@ static void* ru_thread( void* param ) {
   int                frame    =1023; 
   cpu_set_t cpuset;
   CPU_ZERO(&cpuset);
-
+  char filename[256];
 
   // set default return value
   ru_thread_status = 0;
@@ -1794,6 +1808,19 @@ static void* ru_thread( void* param ) {
         
         if (ru->fh_north_out) ru->fh_north_out(ru);
       }
+      else {
+	for (int i=0; i<ru->nb_tx; i++) {
+	  if(proc->frame_tx == 2) {
+	    sprintf(filename,"txdataF%d_frame%d_sf%d.m",i,proc->frame_tx,proc->subframe_tx);
+	    LOG_M(filename,"txdataF_frame",ru->common.txdataF_BF[i],fp->symbols_per_tti*fp->ofdm_symbol_size, 1, 1);
+	  }
+	  if(proc->frame_tx == 2 && proc->subframe_tx==0){
+	    sprintf(filename,"txdata%d_frame%d.m",i,proc->frame_tx);
+	    LOG_M(filename,"txdata_frame",ru->common.txdata[i],fp->samples_per_tti*10, 1, 1);
+	  }
+	}
+      }
+
       proc->emulate_rf_busy = 0;
     }
 #else
diff --git a/targets/RT/USER/nr-ru.c b/targets/RT/USER/nr-ru.c
index b223261db2..68b5e8614e 100644
--- a/targets/RT/USER/nr-ru.c
+++ b/targets/RT/USER/nr-ru.c
@@ -852,7 +852,6 @@ void tx_rf(RU_t *ru) {
     VCD_SIGNAL_DUMPER_DUMP_VARIABLE_BY_NAME( VCD_SIGNAL_DUMPER_VARIABLES_TRX_TST, (proc->timestamp_tx-ru->openair0_cfg.tx_sample_advance)&0xffffffff );
     VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_TRX_WRITE, 1 );
     // prepare tx buffer pointers
-    
     txs = ru->rfdevice.trx_write_func(&ru->rfdevice,
 				      proc->timestamp_tx+ru->ts_offset-ru->openair0_cfg.tx_sample_advance-sf_extension,
 				      txp,
@@ -1388,6 +1387,9 @@ static void* ru_thread( void* param ) {
   int                ret;
   int                subframe =9;
   int                frame    =1023; 
+  char               filename[40];
+  int                print_frame = 2;
+  int                i = 0;
 
   // set default return value
   ru_thread_status = 0;
@@ -1521,13 +1523,30 @@ static void* ru_thread( void* param ) {
    
     // do OFDM if needed
     if ((ru->fh_north_asynch_in == NULL) && (ru->feptx_ofdm)) ru->feptx_ofdm(ru);
-    if (!emulate_rf)
+    if(!emulate_rf)
     {
       // do outgoing fronthaul (south) if needed
       if ((ru->fh_north_asynch_in == NULL) && (ru->fh_south_out)) ru->fh_south_out(ru);
-    } 
-
-    if (ru->fh_north_out) ru->fh_north_out(ru);
+  
+      if (ru->fh_north_out) ru->fh_north_out(ru);
+    }
+    else
+    {
+      if(proc->frame_tx == print_frame)
+      {
+        for (i=0; i<ru->nb_tx; i++)
+        {
+          sprintf(filename,"tx%ddataF_frame%d_sf%d.m", i, print_frame, proc->subframe_tx);
+          LOG_M(filename,"txdataF_frame",&ru->common.txdataF_BF[i][0],fp->samples_per_subframe_wCP, 1, 1);
+          if(proc->subframe_tx == 9)
+          {
+            sprintf(filename,"tx%ddata_frame%d.m", i, print_frame);
+            LOG_M(filename,"txdata_frame",&ru->common.txdata[i][0],fp->samples_per_frame, 1, 1);
+          }
+        }
+      }
+      //else if (proc->frame_tx > print_frame) oai_exit = 1;
+    }
   }