diff --git a/user_space/check_calib_inf.sh b/user_space/check_calib_inf.sh
new file mode 100644
index 0000000..46b61ac
--- /dev/null
+++ b/user_space/check_calib_inf.sh
@@ -0,0 +1,12 @@
+#!/bin/bash
+
+(bash -c 'echo $PPID' > /tmp/check_calib_inf.pid
+while true; do
+	echo 0x0A7 > /sys/kernel/debug/iio/iio:device2/direct_reg_access
+	status=$( cat /sys/kernel/debug/iio/iio:device2/direct_reg_access )
+	if [ $status == "0xFF" ]; then
+		echo "WARNING: Tx Quadrature Calibration failed."
+	fi
+	sleep 5
+done) &
+
diff --git a/user_space/set_tx_lo.sh b/user_space/set_tx_lo.sh
new file mode 100644
index 0000000..a7b967b
--- /dev/null
+++ b/user_space/set_tx_lo.sh
@@ -0,0 +1,56 @@
+#!/bin/bash
+
+set -x
+if test -f "/sys/kernel/debug/iio/iio:device0/direct_reg_access"; then
+  cd /sys/kernel/debug/iio/device0/
+else if test -f "/sys/kernel/debug/iio/iio:device1/direct_reg_access"; then
+       cd /sys/kernel/debug/iio/iio:device1/
+     else if test -f "/sys/kernel/debug/iio/iio:device2/direct_reg_access"; then
+            cd /sys/kernel/debug/iio/iio:device2/
+          else if test -f "/sys/kernel/debug/iio/iio:device3/direct_reg_access"; then
+                 cd /sys/kernel/debug/iio/iio:device3/
+               else if test -f "/sys/kernel/debug/iio/iio:device4/direct_reg_access"; then
+                      cd /sys/kernel/debug/iio/iio:device4/
+                    else
+                      echo "Can not find direct_reg_access!"
+                      echo "Check log to make sure ad9361 driver is loaded!"
+                      exit 1
+                    fi
+               fi
+          fi
+     fi
+fi
+set +x
+
+if [ "$#" -eq 1 ]; then
+  if [ $1 == "0" ]; then 
+	  echo 0x051 0x10 > direct_reg_access
+	  status=$( cat direct_reg_access )
+	  if [ $status == "0x10" ]; then
+		  echo "Tx LO turned off"
+	  else
+		  echo "WARNING: turning Tx LO off unsuccessful"
+	  fi 
+  elif [ $1 == "1" ]; then
+    echo 0x051 0x0 > direct_reg_access
+	  status=$( cat direct_reg_access )
+    if [ $status == "0x0" ]; then
+		  echo "Tx LO turned on"
+	  else
+		  echo "WARNING: turning Tx LO on unsuccessful"
+    fi 
+  fi
+elif [ "$#" -eq 0 ]; then
+		echo "Reading status only. Enter 1 or 0 as argument to set Tx LO on or off."
+    echo 0x051 > direct_reg_access
+    status=$( cat direct_reg_access )
+    if [ $status == "0x10" ]; then
+		  echo "Tx LO is off"
+    elif [ $status == "0x0" ]; then
+      echo "Tx LO is on"
+    else
+      echo "WARNING Unrecognized value $status."
+    fi  
+else
+  echo "Too many arguments, specify only one for turning on (1) or off (0) the Tx LO."
+fi
diff --git a/user_space/set_tx_port.sh b/user_space/set_tx_port.sh
new file mode 100755
index 0000000..6a47e7c
--- /dev/null
+++ b/user_space/set_tx_port.sh
@@ -0,0 +1,56 @@
+#!/bin/bash
+
+set -x
+if test -f "/sys/kernel/debug/iio/iio:device0/direct_reg_access"; then
+  cd /sys/kernel/debug/iio/device0/
+else if test -f "/sys/kernel/debug/iio/iio:device1/direct_reg_access"; then
+       cd /sys/kernel/debug/iio/iio:device1/
+     else if test -f "/sys/kernel/debug/iio/iio:device2/direct_reg_access"; then
+            cd /sys/kernel/debug/iio/iio:device2/
+          else if test -f "/sys/kernel/debug/iio/iio:device3/direct_reg_access"; then
+                 cd /sys/kernel/debug/iio/iio:device3/
+               else if test -f "/sys/kernel/debug/iio/iio:device4/direct_reg_access"; then
+                      cd /sys/kernel/debug/iio/iio:device4/
+                    else
+                      echo "Can not find direct_reg_access!"
+                      echo "Check log to make sure ad9361 driver is loaded!"
+                      exit 1
+                    fi
+               fi
+          fi
+     fi
+fi
+set +x
+
+if [ "$#" -eq 1 ]; then
+  if [ $1 == "0" ]; then 
+	  echo 0x004 0x43 > direct_reg_access
+	  status=$( cat direct_reg_access )
+	  if [ $status == "0x43" ]; then
+		  echo "Tx port B selected."
+	  else
+		  echo "WARNING: switching Tx port B unsuccessful"
+	  fi 
+  elif [ $1 == "1" ]; then
+    echo 0x004 0x3 > direct_reg_access
+	  status=$( cat direct_reg_access )
+    if [ $status == "0x3" ]; then
+		  echo "Tx port A selected."
+	  else
+		  echo "WARNING: switching Tx port A unsuccessful"
+    fi 
+  fi
+elif [ "$#" -eq 0 ]; then
+		echo "Reading status only. Enter 1 or 0 as argument to select port A or B."
+    echo 0x004 > direct_reg_access
+    status=$( cat direct_reg_access )
+    if [ $status == "0x43" ]; then
+		  echo "Tx port B is used"
+    elif [ $status == "0x3" ]; then
+      echo "Tx port A is used"
+    else
+      echo "WARNING Unrecognized value $status."
+    fi  
+else
+  echo "Too many arguments, specify only one for selecting port A (1) or B (0)."
+fi
diff --git a/user_space/wgd.sh b/user_space/wgd.sh
index d16a120..408ee42 100755
--- a/user_space/wgd.sh
+++ b/user_space/wgd.sh
@@ -247,6 +247,12 @@ then
   return
 fi
 
+if ps -p $(</tmp/check_calib_inf.pid) > /dev/null
+then
+   kill $(</tmp/check_calib_inf.pid)
+fi
+./check_calib_inf.sh
+
 echo the end
 dmesg