Is BT Mesh still not compatible with coded PHY

[Fridtjof]

Hi

I'm looking into using the nrf52833 and/or nrf52843 for a long range mesh network. Since I require long range, but not high bandwidths, using a coded PHY seems appropriate. However, I read in a previous answer (linked below) from 3 years ago that coded PHYs are not supported for BT Mesh, because coded PHYs are Bluetooth 5, and mesh is Bluetooth 4. Is it possible that this has changed over the last three years? Can we now use coded PHY to extend the range of our Bluetooth Meshes?

 Bluetooth Mesh options for increasing or changing radio range 

-Fridtjof

[Fridtjof]

I read the official Bluetooth Mesh FAQ, and it says that BT Mesh is available for Bluetooth 5, so I would think it can handle coded PHYs. Is this something that has been tried on the nrf528XX?

[Amanda Hsieh]

Hi, 

Please see my colleague's explanation in this post. 

Regards,
Amanda H.

[Fridtjof]

Thank you for the answer, Amanda

It seems coded PHYs cannot be used with BT Mesh IF we need qualification. I'm trying to figure out whether we would need it. If we use Bluetooth Mesh but do not advertise that we use Bluetooth, use the Bluetooth logo, or wish to be compatible with any other Bluetooth devices (just our own mesh); would we need to get qualified?

[Amanda Hsieh]

If you want to use the Bluetooth logo, it needs to be qualified. 

[Fridtjof]

If and only if?

[Fridtjof]

I will assume the answer is something like "most probably yes, but we do not wish to take on any possible legal liability." This is understandable. Thank you for the guidance!