diff --git a/config_webrx.py b/config_webrx.py
index 764e1d6..142776b 100644
--- a/config_webrx.py
+++ b/config_webrx.py
@@ -84,12 +84,21 @@ start_rtl_thread=True
 start_rtl_command="rtl_sdr -s {samp_rate} -f {center_freq} -p {ppm} -g {rf_gain} -".format(rf_gain=rf_gain, center_freq=center_freq, samp_rate=samp_rate, ppm=ppm)
 format_conversion="csdr convert_u8_f"
 
-#start_rtl_command="hackrf_transfer -s {samp_rate} -f {center_freq} -g {rf_gain} -l16 -a0 -r hackrf_pipe & cat hackrf_pipe | nc -vvl 127.0.0.1 8888".format(rf_gain=rf_gain, center_freq=center_freq, samp_rate=samp_rate, ppm=ppm)
-#format_conversion="csdr convert_i8_f"
-## To use a HackRF, first run "mkfifo hackrf_pipe" in the OpenWebRX directory.
-## You should also use the csdr git repo from here: 
-##   git clone https://github.com/sgentle/csdr
-##   git checkout origin/signed_char
+#start_rtl_command="hackrf_transfer -s {samp_rate} -f {center_freq} -g {rf_gain} -l16 -a0 -r-".format(rf_gain=rf_gain, center_freq=center_freq, samp_rate=samp_rate, ppm=ppm)
+#format_conversion="csdr convert_s8_f"
+"""
+To use a HackRF, compile the HackRF host tools from its "stdout" branch:
+ git clone https://github.com/mossmann/hackrf/ 
+ cd hackrf 
+ git fetch
+ git checkout origin/stdout
+ cd host
+ mkdir build
+ cd build
+ cmake .. -DINSTALL_UDEV_RULES=ON
+ make
+ sudo make install
+"""   
 
 # >> Sound card SDR (needs ALSA)
 #I did not have the chance to properly test it.