rtl_fm bias tee

Cinaed Simson cinaed.simson at gmail.com
Sun Nov 19 04:56:26 UTC 2017


There are a number of forks of rtl-sdr, but the one I use is from

  https://github.com/osmocom/rtl-sdr.git

which has support for the bias tee.

I'm not familiar with the git URLs you posted.

When I built it from source I get everything - the binaries, the
includes and the libraries.

And rtl_fm worked.

As long as you don't randomly mix the source for the rtl-sdr and the
source for the librtlsdr from different forks it shouldn't matter.

-- Cinaed


On 11/18/2017 04:09 PM, vk4tec at tech-software.net wrote:
> Hello
> 
> I am installing a satgate on the raspberry pi with an rtl dongle
> 
> I use the rtl_fm from the sources and I get an error about bias tee
> 
> I have had to use another source 
> 
> Here is my install script 
> 
> #!/bin/sh
> clear
> echo "VK4TEC SATGATE install"
> echo " "
> #sudo apt-get update
> #sudo apt-get install cmake build-essential libusb-1.0-0-dev
> git clone https://github.com/niofis/rtl-sdr.git
> cd rtl-sdr/
> mkdir build
> cd build
> cmake ../
> make
> sudo make install
> sudo ldconfig
> git clone https://www.github.com/wb2osz/direwolf
> cd ~/direwolf
> make
> sudo make install
> make install-rpi
> make install-conf
> cd ~
> sudo mv sdr.old sdr.confcd ~
> sudo cp sdr.conf sdr.old
> cd ~
> sudo apt-get uninstall rtl-sdr
> sudo apt-get install rtl-sdr
> sudo apt-get install librtlsdr-dev
> /usr/bin/rtl_fm -f 145.825M - | direwolf -t 0 -dii -c sdr.conf -r 24000 -D 1
> -
> 
> Andrew Rich Nov 2017 
> 
> 



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