[Ground-station] ATSC open source implementations

[Ron Economos]

I hope you haven't forgotten about my ATSC 3.0 transmitter open source 
implementation.

https://github.com/drmpeg/gr-atsc3

It's an almost complete implementation of the PHY layer and can be used 
to transmit Transport Streams. It does not implement the ROUTE/DASH 
higher layers.

Here's a demo clip where I back off the power to find the minimum 
required SNR (2 to 3 dB for 9/15 QPSK).

https://www.youtube.com/watch?v=cmIGM0I3NE0

There was an open source receiver repository (libatsc3) for the upper 
layers, but it's been deleted. I just e-mailed the author to find out 
what's going on.

Despite getting some press for my transmitter in TV Technology and IEEE 
Broadcast Technology Magazine, I've never received any feedback.

https://www.tvtechnology.com/opinion/learning-about-atsc-30on-the-web-or-on-the-bench

https://bts.ieee.org/images/files/newsletters/BTS-4thQtr2022-web_1.pdf

The ATSC 3.0 roll out is in a bit of turmoil right now due to 
broadcasters applying encryption/DRM to their channels. The most popular 
STB style receivers are not capable of decryption and consumers are 
being disenfranchised. A couple thousand complaints have been filed with 
the FCC.

https://www.fcc.gov/ecfs/search/search-filings/results?q=(proceedings.name:(%2216-142*%22))

Hopefully, that link works. If it doesn't, use the link below and search 
for the 16-142 proceeding.

https://www.fcc.gov/ecfs/search/search-filings

There's also been videos on some YouTube channels.

https://www.youtube.com/watch?v=0NhV5BdEWqo

https://www.youtube.com/watch?v=uxnW3ed9yR4

Since there's no reduced bandwidth option for ATSC 3.0, it's not very 
ham friendly. Folks are reluctant to fire up full 6 MHz wide signals, 
especially on 70 cm.

Ron W6RZ

On 8/20/23 10:44, Michelle Thompson via Ground-Station wrote:
> I have a meeting in the works to talk to ATSC committee leadership 
> about open source implementations.
>
> There's a clear difference between DVB and ATSC in ease of use for 
> open source work. ATSC folks are interested in hearing more about how 
> things can improve.
>
> If you can help with this effort, please get in touch so we can put 
> our best effort forward in communicating with ATSC.
>
> If you know of someone that would be a positive addition to the 
> discussion, please forward this and let me know how to get in touch 
> with them.
>
> -Michelle Thompson
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