diff --git a/groundstation/pacsat.sh b/groundstation/pacsat.sh
index 9aac313a..61ece654 100755
--- a/groundstation/pacsat.sh
+++ b/groundstation/pacsat.sh
@@ -28,6 +28,32 @@ else
   
 fi  
 
+if [[ $(arecord -l | grep "USB Audio Device") ]] ; then
+  echo "USB Sound Card detected"
+  soundcard=1
+else
+  echo "No USB Sound Card detected"
+  soundcard=0
+fi  
+
+gpio -g mode 7 up
+if [[ $(gpio -g read 7 | grep 0) ]] ; then
+  echo "TXC is present"
+  txc=1
+else
+  echo "TXC not present"
+  txc=0
+fi  
+
+timeout 1 rtl_test &> out.txt
+if [[ $(grep "No supported" out.txt) ]] ; then
+  echo "No RTL-SDR detected"
+  rtl=0
+else
+  echo "RTL-SDR detected."
+  rtl=1
+fi
+
 FILE=/home/pi/CubeSatSim/battery_saver
 if [ -f "$FILE" ]; then