SSTV on Raspberry Pi

Submitted by gerry on Thu, 06/16/2016 - 16:19

Following a suggestion by Galway VHF Group mamber Steve, EI5DD, I thought I would give SSTV a shot. It's not a mode I have any experience with, apart from hearing the transmissions at 14.230MHz when I tune around. Steve mentioned a cross-platform SSTV program QSSTV, which seems to run well on a Pi 2, so that's what I decided to use.



I have a Pi 2 that I use for playing with SDR and radio software already set up with the current Rasbian (wheezy). Initially, I installed the version of QSSTV in the Rasbian repositories, however, I got errors when it tried to open the audio device on the Pi. I uninstalled it and decided to build from source instead. The code and build instructions are available on the author's site.



I started by installing the dependencies.



sudo apt-get install g++ libfftw3-dev qt5-default libpulse-dev



sudo apt-get install hamlib-dev libasound-dev libv4l-dev



sudo apt-get install libopenjp2-7 libopenjp2-7-dev



I then downloaded and exploded the source tarball and compiled and installed the binary. Compilation on the Pi takes a while, so be patient.



$ cd ~/Development

$ tar -xvzf qsstv_9.1.1.tar.gz

$ cd qsstv_9.1.1

$ qmake

$ make

$ sudo make install




Running the application is just a matter of entering 'qsstv' at the command prompt.


$ qsstv

Once started, it needs to be configured.


 

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