nRF52840 DTM TX output power temperature compensation

[RongLinQin]

Hi Nordic support:

        Our product uses the nRF52840. During CE certification, the lab measured the  BLE TX power in DTM mode.  at –20 °C the power is 3–4 dB higher than at +25 °C. Could you help to check if Nordic provide a way to compensate the TX power so that it stays the same  TX power at different temperatures?

         The attachemnt picture is TX power test result of out product  

         Thanks. 

BRs

Qin, Rong-Lin

[Simonr]

Hi

We only do CE testing on room temperatures, so we do not have a way to compensate TX power over different temperatures I'm afraid. Let me know if you would like our CE test reports and I will try to dig them out for you.

Best regards,

Simon