Want to set up your own television station? This hack might help: [Jan Panteltje] has worked out how to turn a Raspberry Pi into a DVB-S transmitter. DVB-S is a TV transmission standard originally created for satellite broadcasts, but Hams also use it to send video on the amateur bands. What [Jan] did was to use software on the Pi to encode the video into the transport stream, which is then fed out to the home-made transmitter that modulates the data into a DVB-S signal. [Jan] has successfully tested the system with a direct connection, feeding the output of the transmitter into a DVB-S decoder card that could read the data and decode the video signal. To create a real broadcast signal, the next step would be to feed the output of the signal into an amplifier and larger transmitter that broadcast the signal.
That’s a big step, though, and I hope that [Jan] holds off and does a bit more documentation first. At the moment, the schematics for this are all hand-drawn, and the prototype is a wire-wrapped bit of protoboard. This is a very impressive hack, though: there are amateur DVB-S transmitters available, but most put the encoding onto a dedicated chip. We’ve seen hacks using the simpler DVB-T standard and a Pi before, but getting a Pi to do some of the heavy lifting makes it cheaper and more flexible, so kudos to [Jan] and colleagues for their work.