diff --git a/command b/command
index a4c1be42..6bc08fa8 100755
--- a/command
+++ b/command
@@ -79,14 +79,18 @@ else
 			echo "$value" > /dev/null
 			set -- $value
 
+			card=${2:0:1}
+
 			value=`cat /home/pi/CubeSatSim/sim.cfg`
 			echo "$value" > /dev/null
 			set -- $value
+
+			freq=$8
 		
 			echo "Current value of rx is"	
-			echo $8
+			echo $freq
 	
-			rtl_fm -M fm -f $8M -s 48k | aplay -D plughw:${2:0:1},0,0 -r 48000 -t raw -f S16_LE -c 1 &
+			rtl_fm -M fm -f $freqM -s 48k | aplay -D plughw:$card,0,0 -r 48000 -t raw -f S16_LE -c 1 &
 	
 			if [ "$debug" = "1" ]; then