The nrf52833‘s RF power accuracy does NOT meet the requirements of Telec

RE: The nrf52833‘s RF power accuracy does NOT meet the requirements of Telec

dejans — Thu, 03 Oct 2024 09:43:32 GMT

Hi Kiyoshi Egawa

Please create a new private ticket.

Best regards,
Dejan

RE: The nrf52833‘s RF power accuracy does NOT meet the requirements of Telec

Kiyoshi Egawa — Fri, 27 Sep 2024 10:14:28 GMT

Hi Dejans and Aape,

From my experience view point, if you apply TELEC in the condition of the theoretical output power with - 4dB to + 0.75dB, your EUT will be approved by TELEC.

By the way, In the case of +8dBm ±4dB under the Nordic proprietary mode, the theoretical maximum RF power is 12dBm, so there is also the same problem in EN300 328.

How about any idea for solving?

Could you please revise the RF power accuracy in line with reality?

RE: The nrf52833‘s RF power accuracy does NOT meet the requirements of Telec

dejans — Mon, 22 Apr 2024 14:05:55 GMT

Hi,

The accuracy of ±4 dB shown in the nrf52833 product specification is to account for all devices for all supported voltages, temperatures and channels. For a single device, the accuracy is expected to be less than ±3.8 dB.

Best regards,
Dejan

RE: The nrf52833‘s RF power accuracy does NOT meet the requirements of Telec

Aape — Mon, 22 Apr 2024 09:33:29 GMT

Hi，

Telec certification requires the accuracy of the signal sent from the antenna to be -80%~20%, but the accuracy of the nRF52833 is ±4dB, which has exceeded the accuracy requirements

RE: The nrf52833‘s RF power accuracy does NOT meet the requirements of Telec

dejans — Mon, 22 Apr 2024 09:17:35 GMT

Hi,

Thank you for additional information.

[quote user=""]We had some trouble doing the certification of Tepec， Telec certification requires the RF power accuracy of ±3.8dB , while it is ±4dB in spec[/quote]

Could you please provide more information about the trouble that you encountered while doing certification? What were you trying to do and what happened? Could you provide more details?

Best regards,
Dejan

RE: The nrf52833‘s RF power accuracy does NOT meet the requirements of Telec

Aape — Sat, 20 Apr 2024 08:46:34 GMT

Hi, pls check it out

RE: The nrf52833‘s RF power accuracy does NOT meet the requirements of Telec

dejans — Fri, 19 Apr 2024 12:45:17 GMT

Hi,

Could you point to the relevant chapter? In addition, could you provide a screenshot of the relevant part?

Best regards,
Dejan

RE: The nrf52833‘s RF power accuracy does NOT meet the requirements of Telec

Aape — Fri, 19 Apr 2024 07:29:52 GMT

Hi，Dejan

Thank you very much for your reply，Please refer to the following documents，Looking forward to hearing from you!

devzone.nordicsemi.com/.../ARIB_2D00_STD_2D00_T66v3_5F00_English.pdf

RE: The nrf52833‘s RF power accuracy does NOT meet the requirements of Telec

dejans — Wed, 17 Apr 2024 09:58:24 GMT

Hi,

Could you provide more information about the certification that you are trying to do? Can you provide the link related to the Telec certification document which shows mentioned requirement for RF power accuracy of ±3.8 dB?

Regarding nrf52833 output power, do you refer to the values of output power shown in the radio register TXPOWER from nrf52833 product specification?

Best regards,
Dejan