Add rtl-sdr menu

rtlmenu.sh

@@ -0,0 +1,41 @@
+#!/bin/bash
+status="0"
+INPUT_RTLSDR=434.0
+INPUT_GAIN=0
+
+do_freq_setup()
+{
+
+FREQ=$(whiptail --inputbox "Choose input Frequency (in MHZ) Default is 100MHZ" 8 78 $INPUT_RTLSDR --title "RTL-SDR Receive Frequency" 3>&1 1>&2 2>&3)
+if [ $? -eq 0 ]; then
+    INPUT_RTLSDR=$FREQ
+fi
+
+GAIN=$(whiptail --inputbox "Choose input Gain (0(AGC) or 1-45)" 8 78 $INPUT_GAIN --title "RTL-SDR Receive Frequency" 3>&1 1>&2 2>&3)
+if [ $? -eq 0 ]; then
+    INPUT_GAIN=$GAIN
+fi
+
+}
+
+do_freq_setup
+
+ while [ "$status" -eq 0 ] 
+    do
+
+ menuchoice=$(whiptail --title "Rpitx with RTLSDR" --menu "Choose your test, ctrl^c to end a test" 20 82 12 \
+	"0 Record" "Record spectrum on $INPUT_RTLSDR" \
+	"1 Play" "Replay spectrum" \
+	"2 Transponder" "Transmit $INPUT_RTLSDR to 434MHZ" \
+	
+ 	3>&2 2>&1 1>&3)
+
+        case "$menuchoice" in
+		0\ *) rtl_sdr -s 250000 -g "$INPUT_GAIN" -f "$INPUT_RTLSDR"M record.iq   ;;
+	    1\ *) sudo ./sendiq -s 250000 -f "$INPUT_RTLSDR"e6 -t u8 -i record.iq ;;
+		2\ *) source $"$PWD/transponder.sh" $INPUT_RTLSDR $INPUT_GAIN >/dev/null 2>/dev/null;;
+		   *)	 status=1;;
+        esac
+       
+    done
+exit

src/sendiq.cpp

@@ -172,7 +172,7 @@ int main(int argc, char* argv[])
 				{
 					static short IQBuffer[IQBURST*2];
 					int nbread=fread(IQBuffer,sizeof(short),IQBURST*2,iqfile);
-					if(nbread==0) continue;
+					//if(nbread==0) continue;
 					if(nbread>0)
 					{
 						for(int i=0;i<nbread/2;i++)
@@ -198,7 +198,7 @@ int main(int argc, char* argv[])
 				{
 					static unsigned char IQBuffer[IQBURST*2];
 					int nbread=fread(IQBuffer,sizeof(unsigned char),IQBURST*2,iqfile);
-					if(nbread==0) continue;
+					
 					if(nbread>0)
 					{
 						for(int i=0;i<nbread/2;i++)
@@ -225,7 +225,7 @@ int main(int argc, char* argv[])
 				{
 					static float IQBuffer[IQBURST*2];
 					int nbread=fread(IQBuffer,sizeof(float),IQBURST*2,iqfile);
-					if(nbread==0) continue;
+					//if(nbread==0) continue;
 					if(nbread>0)
 					{
 						for(int i=0;i<nbread/2;i++)
@@ -252,7 +252,7 @@ int main(int argc, char* argv[])
 				{
 					static double IQBuffer[IQBURST*2];
 					int nbread=fread(IQBuffer,sizeof(double),IQBURST*2,iqfile);
-					if(nbread==0) continue;
+					//if(nbread==0) continue;
 					if(nbread>0)
 					{
 						for(int i=0;i<nbread/2;i++)

transponder.sh

@@ -1,3 +1,4 @@
 #You need a rtl-sdr dongle in order to run this
-rtl_sdr -s 250000 -g 40 -f 107700000 - | sudo ./sendiq -s 250000 -f 434.0e6 -t u8 -i -
+echo "transponder FreqIn(Mhz) Gain(0-45)"
+rtl_sdr -s 250000 -g "$2" -f "$1M" - | sudo ./sendiq -s 250000 -f 434.0e6 -t u8 -i -