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2 Mbps BLE or 2 Mbps Nordic proprietary mode

Hi!

We have working solution with custom rf protocol based on NRF52832 and NRF52840(now it use 2 Mbps Nordic proprietary mode). Now we want improve it.

Could You give some advice about rf mode selection?

As I see 2Mbps BLE mode has better rx sensivity and Co-Channel interference characteristic. But it requires 2 bytes in preamble.

We are using many devices in one room with different rf channels so crosstalk is very important things for us. Will it better use 2Mbps BLE mode?

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  • Address dependent from channel, so device will not receive packet from another pair.

    In our cases some different pairs(Master + Slave) can be placed close one to another. They will make noise for each other if they have close channels. From current experiments they should have channels N and N + 6 for stable link(no failed packets).

    So we have 88 / 6 = 14 not overlapped channels. And some of them will be poor because of WIFI.

    It will be perfect increase this number.

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