diff --git a/install.sh b/install.sh
index f589168..e46eb8b 100755
--- a/install.sh
+++ b/install.sh
@@ -1,11 +1,14 @@
 
 echo Install rpitx - some package need internet connexion -
 sudo apt-get update
-sudo apt-get install -y libsndfile1-dev
+sudo apt-get install -y libsndfile1-dev git
 sudo apt-get install -y imagemagick
-sudo mknod /dev/rpidatv-mb c 100 0
 cd src
-make -j4
+git clone https://github.com/F5OEO/librpitx
+cd librpitx/src
+make
+cd ../../
+make 
 sudo make install
 cd ..
 echo Installation done
diff --git a/snapsstv.sh b/snapsstv.sh
index 474281b..11f5a54 100755
--- a/snapsstv.sh
+++ b/snapsstv.sh
@@ -1,6 +1,6 @@
 raspistill -w 320 -h 256 -o picture.jpg -t 1
 convert -depth 8 picture.jpg picture.rgb
 
-sudo ./pisstv picture.rgb picture.ft
-sudo ./rpitx -m RF -i picture.ft -f 50105
+sudo ./pisstv picture.rgb 144.5e6
+
 
diff --git a/src/sstv/pisstv.cpp b/src/sstv/pisstv.cpp
index cf593d3..b5cf38b 100644
--- a/src/sstv/pisstv.cpp
+++ b/src/sstv/pisstv.cpp
@@ -159,22 +159,22 @@ void ProcessMartin1()
 
 int main(int argc, char **argv)
 {
-	uint64_t frequency=144200;
+	float frequency=144.5e6;
 	if (argc > 2) 
 	{
 		char *sFilePicture=(char *)argv[1];
 		FilePicture = open(argv[1], O_RDONLY);
 		
-		 frequency=atol(argv[2]);
+		 frequency=atof(argv[2]);
 		
 	}
 	else
 	{
-		printf("usage : pisstv picture.rgb frequency(khz)\n");
+		printf("usage : pisstv picture.rgb frequency(Hz)\n");
 		exit(0);
 	}
 	
-	fmmod=new ngfmdmasync(frequency*1000,100000,14,FifoSize);	
+	fmmod=new ngfmdmasync(frequency,100000,14,FifoSize);	
 	ProcessMartin1();
     close(FilePicture);
 	delete fmmod;
diff --git a/testopera.sh b/testopera.sh
index fcc13e0..781ba2b 100755
--- a/testopera.sh
+++ b/testopera.sh
@@ -1,3 +1,3 @@
-./piopera F5OEO 0.5 opera.rfa
-sudo ./rpitx -m RFA -i opera.rfa -f 144180 -l -c 1 -r
+sudo ./piopera F5OEO 0.5 144.18e6
+
 
diff --git a/testsstv.sh b/testsstv.sh
new file mode 100755
index 0000000..409d405
--- /dev/null
+++ b/testsstv.sh
@@ -0,0 +1 @@
+sudo ./pisstv testcard.rgb 144.5e6