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I've always wondered what happens if you are in a big pack with these kind of devices

There's no stepping on each others signal? Error-correction?

Garmin is ending ANT+ because it's not-encrypted and Europe won't allow that anymore but it would be fascinating to do an ANT+ capture next to a marathon of 50,000 people, how does it deal with all that signal noise (BLE is on same frequency)



Is that really why it's going away? I just sort of figured that BLE chipsets had gotten so cheap these days that it was more economical. Can't see why you'd care about encrypted data for something which you could measure pretty trivially via other means, if you were close enough to pick up the signal.


Technically that stuff is health data (especially the heart-rate, o2 levels, etc) so it's probably just not worth trying to fix the protocols.




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