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AlphaWeaveryesterday at 7:30 PM6 repliesview on HN

The "100x bandwidth" claim needs to be substantiated.

There are some significant regulatory issues with the current popular mesh network protocols in the USA, namely that neither MeshCore or Meshtastic are compliant with the actual FCC regulations. 100x bandwidth because you're breaking the rules isn't the same as 100x bandwidth legally.

Here is the issue discussing this in the MeshCore repository: https://github.com/meshcore-dev/MeshCore/issues/945


Replies

DoctorOetkertoday at 11:20 AM

I never understood the popularity of these protocols, because when I looked at the legal duty cycles and multiplied that by time in a day and instantaneous bitrate, the result was a disappointing amount of data per day...

So many spectrum rules are totally weird though: should they be interpreted per radio device? or per user?

What -apart from cost- prevents a user who wants more bandwidth from installing 10 devices in parallel and alternate each radio so none of the radios exceed their allowed transmit duty cycle?

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wtallisyesterday at 8:15 PM

The issue you linked to is about MeshCore using channels that are too narrow. A mesh system claiming to offer 100x bandwidth is probably not violating regulations in that particular way.

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rocquayesterday at 11:02 PM

That's just "using lora in the same band as WiFi and Bluetooth" no?

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RobotToastertoday at 6:20 AM

Seems more of an issue of outdated and de facto unenforceable regulations than an issue with the protocol.

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aaron695today at 9:27 AM

[dead]

zoobabtoday at 8:01 AM

"regulatory issues with the current popular mesh network protocols in the USA"

There are other countries in the world.

And there are also places where there is no electromagnetic policies (think about over the oceans).