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My collaborator on some "fox-hunting" projects just noticed the device mentioned in the YouTube video from Andreas Speiss HB9BLA. Being more practical than I, he ordered two of them while I started looking into the IC, which at under $2 is quite exciting for building low cost receive-only devices, although the IC is so tiny it would defy our soldering skills. There are also reports of challenges in figuring out the details of its I2C protocol as the datasheet is very sketchy in that regard.

Our current project feeds audio into a R-Pi (or a Teensy) and so I was a little disappointed that the IC only has analog I/O for the demodulated signal even though the last stage is a DAC so the digital audio is in there somewhere, but you can't have everything, and this looks like a way to reduce the power, size and component cost of our project which we'd like to replicate in modest quantities.

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Welcome to the Fediverse! I was able to follow you from my community's instance. As long as a Mastodon instance isn't blacklisted by your server admin, you can follow anyone on any other federated server. It's all based on the activitypub protocol and fairly open source. My first thought when seeing how Mastodon works was that it would be a great way to build a social network over ham radio. But I think the protocols assume servers will always be avilable and the network stack will take care of errors. Both of these issues aren't insurmountable, but would require a "store for now and forward whenever the node is back online" approach. How would that work in a broadcast/multicast environment?

Of course the bigger issue is how to get hams to put down the mic and start typing instead.

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