diff --git a/Using-OpenWebRX-with-an-AirSpyHF-(IW0HDV-version).md b/Using-OpenWebRX-with-an-AirSpyHF-(IW0HDV-version).md
index a099036..d550444 100644
--- a/Using-OpenWebRX-with-an-AirSpyHF-(IW0HDV-version).md
+++ b/Using-OpenWebRX-with-an-AirSpyHF-(IW0HDV-version).md
@@ -1 +1,26 @@
-TBD
+The following instructions assume that you are using Ubuntu 14.04 or later.
+
+## Install prerequisite
+sudo apt-get install build-essential git libfftw3-dev cmake libusb-1.0-0-dev
+
+## Build and install libairspyhf
+cd ~/
+git clone https://github.com/IW0HDV/airspyhf.git -b tools
+cd airspyhf/
+mkdir build
+cd build
+cmake ../ -DINSTALL_UDEV_RULES=ON
+make
+sudo make install
+sudo ldconfig
+
+## Download, build and install csdr library (which is a dependency of OpenWebRX) 
+git clone https://github.com/simonyiszk/csdr.git
+cd ~/csdr
+make
+sudo make install
+
+
+## Install OpenWebRx
+
+