Range extension of the nrf21540

RE: Range extension of the nrf21540

SwRa — Mon, 03 Jan 2022 16:54:35 GMT

Hi,

The receiver sensitivity alone cannot improve the range since it only improves the minimum signal strength that a receiver can detect. The transmitted signal does not reach the receiver without improvement in output power. However, the improvement in the transmission power coupled with the improved sensitivity is what improves the range significantly in the nrf21540 range extender.

Regards,

Swathy

RE: Range extension of the nrf21540

Gianlucamilani — Fri, 31 Dec 2021 09:57:18 GMT

Thank you very much for your answer,

so this means that actually the -100dB factor improvement in the receiver side is not really effective, right?

Best regards,

Gianluca

RE: Range extension of the nrf21540

SwRa — Thu, 30 Dec 2021 13:26:11 GMT

Hey,

Sorry for the delayed response. If you place the nrf21540 in the receiver side only and if the receiver only receives the data, i.e, one-way communication, it will only improve the receiver sensitivity by a factor of about -100dB and there will be no significant improvement in the range. But if there is two-way communication, i.e, the receiver end also sends data, then there will also be an improvement in the transmitting power of the receiver which will improve the range.

Kind Regards,

Swathy

RE: Range extension of the nrf21540

SwRa — Wed, 29 Dec 2021 15:55:31 GMT

Hi,

Really sorry for keeping you waiting. Please expect a delay as we are a bit understaffed since it is the holiday season.

Regards,

Swathy