Turbine is the SDR software for NoraSector. It's designed to capture and stream all frequencies in a trunked radio system. It is capable of decoding multiple systems concurrently, even different system types, provided they all fall within the same sample bandwidth generated by the radio and there's enough CPU available.

It's built with the expectation that it uses a single SDR that is able to capture the bandwidth containing all frequencies in the system.

All audio is encoded using the Opus codec for compatibility with WebRTC and output over UDP.

Designed for big-bore SDRs, like the HackRF. You won't get an RTL-SDR working with this (even though I tagged it with that to make it easier to find).

My Advisory Circular network of twitter bots post in real-time whenever they detect aircraft flying in circles over cities around the world, including Los Angeles, Baltimore, Portland, Minneapolis, and London. The bots often tweet about news and fire aircraft, and because they use an uncensored source of data they also tweet police, FBI, DHS, DEA, CBP, and military aircraft. They look for circles because it means an aircraft is doing something instead of going somewhere. If you've ever asked “what is that helicopter/plane?” there’s a good chance my bots can answer your question—even if it's an advanced military surveillance plane.

A howto for activists that describes how to capture and archive video footage. Includes archival of metadata, keeping files intact, raw and edited video concerns, organization, storage concerns, cataloging, sharing, and preservation. Treats it in a verifiable, library-like manner. Can be downloaded, too.

Documentation for Discord's REST API.