Raspberry PI 0 as DVB-S encoder and trasmitter no additional hardware. RPIDATV by F5OEO Evariste


Interesting OpenSource project that use only a simple RaspberryPI 0 as DVB-S transmitter + RTL-SDR dongle  as receiver. 
This is less expensive DVB-S trasmitter ever developed. 
All the project is by Evariste he is a great developer and member of HAM Radio community ... now we are working togheter to a revision of system with low latency that fit the requirment of drone community .... now the latency is 2.5 second could became 200 ms with a power ampli for real use in outdoor scenario. If some one would join to beta testing of the system are welcome :)
This is the github where you can found the source code of the project .https://github.com/F5OEO/rpidatv

The receiver is an RTL-SDR standard dongle available on store like amazon or ebay for price less 30 $ . The decode is done using SDR technology the software from decoding is from Pabr the name is leandvb . This is the link .

http://www.pabr.org/radio/leandvb/leandvb.en.html

This software decode DVB-S directly from rtl-sdr stream. It's impressive :) 

original blog post here : 

http://www.virtualrobotix.com/profiles/blogs/raspberry-pi-0-as-dvb-...

Views: 2292

Comment by Maxime C on August 26, 2016 at 8:41am

It is really great, congratz to him. Would the RPi0 have enough power to also store the video in SDCard, at the same time?

Comment by JB on August 26, 2016 at 11:41am

Say what??? Awesome! Sign me up! ;-)

Comment by Jack Crossfire on August 26, 2016 at 12:31pm

Easier to send JPEG with no latency than MPEG-2 with all the latency.  Still nifty that the old GPIO with DMA can modulate that much data.


Moderator
Comment by Roberto Navoni on August 26, 2016 at 12:50pm

Jack is not MPEG-2 but H.264 :) And sure the incredible is that si a compliant standard DVB-S not a custom standard ... so it's compatible with standard receiver. The new revision of code that is in src but is not already available in stable version will be a 200 ms of latency and not 2.5 second like the old one revision that already is impressive :) 

Best

Roberto 

Comment by Monroe King on August 26, 2016 at 12:59pm

Hey this could get pretty interesting! Hummmm

Comment by Glenn Gregory on August 26, 2016 at 1:10pm
This is interesting! What is the transmission range with the simple wire transmitter?

Moderator
Comment by Roberto Navoni on August 26, 2016 at 1:33pm

@Gregory ,

the range is only 4 / 5 meter with the wire ... nedd to add a pre ampli + noch filter ... some HAM guys are working on a cheap cirtcuit to add ... with 1 W you can do 10 km or more depend of antenna .

Comment by Tom on August 27, 2016 at 3:48am

awesome

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