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OpenThread nRF52840 radio TX power output

Roger

Hi All,

I would like to know what the default value is for the radio TX power for the nRF5240. According to Nordic's specification, the output power is programmable from +8 dBm to -20 dBm. I see there is a CLI command added txpowermax in the OpenThread stack repository, but I believe the latest version is not yet updated on the SDK for Thread.

I also checked the diag power command and see the TX power is given a default value of 0 dBm. Is this just the radio TX power for diagnostics purposes?

Best regards,

Roger

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  • 0

    Hi Roger

    The default output power is 0dBm (1mW).

    You can change the output power by using the otLinkSetMaxTransmitPower(..) function in the openthread libraries.

    Best regards
    Torbjørn

  • 0 in reply to ovrebekk

    Hi Torbjørn,

    Battery consumption is somewhat important for now. As you suggested, I will keep the output power at 0 dBm till I can run some tests to determine the power consumption of each node. I have multiple routers which will also help in the extending the range. I'll keep an eye on the RSSI and LQI when I test the rest of the network.

    Many thanks!

    Roger

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  • 0 in reply to ovrebekk

    Hi Torbjørn,

    Battery consumption is somewhat important for now. As you suggested, I will keep the output power at 0 dBm till I can run some tests to determine the power consumption of each node. I have multiple routers which will also help in the extending the range. I'll keep an eye on the RSSI and LQI when I test the rest of the network.

    Many thanks!

    Roger

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