[Ground-station] Speaking of DEFCON - here's the "official" blurb

[Michelle Thompson]

Thank you to Mr. Chaos over at RF Village, we've been able to run notices
about the exhibits at our HQ at RF Village. Here's the copy. Please spread
the word.

Why? Because traditional groups in amateur radio simply refuse to. Please
help tell people about the great work we're doing.

-=-=-=-=-=-=-=

DEFCON Demonstrations and Presentations by Open Research Institute at RF
Village

https://openresearch.institute/getting-started

Opulent Voice

Opulent Voice is an open source high bitrate digital voice (and data)
protocol. It's intended to be useful for both space and terrestrial
deployments. We’re getting nice clear 16kbps OPUS audio out of the
demodulator. See and hear a demonstration at the ORI exhibit in RF Village.

We’ll be using COBS protocol within Opulent Voice. If you’re unfamiliar
with COBS, please read about it here:

https://en.wikipedia.org/wiki/Consistent_Overhead_Byte_Stuffing

Authentication and authorization is built in and optional. There is no
separate “packet mode”. Things are designed to “just work” and get out of
your way whether or not you’re sending voice or data.

Based on Mobilinkd codebase that implemented M17, the Opulent Voice
development implementation can be found here:

https://github.com/phase4ground/opv-cxx-demod

Authentication and Authorization functions will be summarized in a poster
presentation. Find out more about this work here:

https://github.com/phase4ground/documents/tree/master/Engineering/AAAAA

Ribbit

Ribbit is an open source SMS data mode that leverages smart phone hardware.
The free Android app produces digital audio that you transmit over your HT
or any other audio coupled device. There will be a poster explaining the
architecture and you can pick up a Ribbit sticker with QR code for the free
Android app at ORI's exhibit in RF Village.

Regulatory

Interested in being able to do more with open source satellites? We have
some landmark regulatory results that solve a big problem for those of us
in the US that have wanted to do open source satellite work without fear.
See our poster in RF Village and find out more at the following link:

https://github.com/phase4ground/documents/tree/master/Regulatory

OpenRTX

OpenRTX is a team based in Italy that specializes in open source firmware
for a variety of platforms in the VHF/UHF digital voice world. They work on
DMR and M17 implementations for the MD-380, and more. Pick up a business
card and see a demonstration of OpenRTX's work at ORI's exhibit in RF
Village.

Tiny CTF

We'll have the World's Smallest Wireless CTF! Come and find it and get a
mission patch for successful solves of the challenge.

More!

There's plenty more. If you see a Volcano and friendly people, you've found
the right place.
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