Hi, I’m currently working with the nRF52833 together with the nRF21540 Front-End Module (FEM). I have configured the FEM to provide a gain of 10 dBm. I have a few questions regarding the appropriate TX power settings: If I set the nRF52833 output power to 0 dBm and the nRF21540 gain to 10 dBm, will the total output power be 10 dBm? If I increase the nRF52833 output power to 4 dBm while the FEM remains at 10 dBm gain, will that result in a 14 dBm total output, or is the FEM capped at 10 dBm total output? Would setting the nRF52833 to 4 dBm risk damaging the FEM, or is it safe to operate under this configuration? Is there anything specific I should consider both in terms of hardware and firmware to have the best performance? Thanks Regards

Power level nrf52833 nrf21540

Hi,

I’m currently working with the nRF52833 together with the nRF21540 Front-End Module (FEM). I have configured the FEM to provide a gain of 10 dBm. I have a few questions regarding the appropriate TX power settings:

If I set the nRF52833 output power to 0 dBm and the nRF21540 gain to 10 dBm, will the total output power be 10 dBm?
If I increase the nRF52833 output power to 4 dBm while the FEM remains at 10 dBm gain, will that result in a 14 dBm total output, or is the FEM capped at 10 dBm total output?
Would setting the nRF52833 to 4 dBm risk damaging the FEM, or is it safe to operate under this configuration? Is there anything specific I should consider both in terms of hardware and firmware to have the best performance?

Thanks

Regards