nRF54L15/L20 RSSI Simultaneous Frequency Sampling?

RE: nRF54L15/L20 RSSI Simultaneous Frequency Sampling?

Ressa — Fri, 09 Jan 2026 12:47:58 GMT

Yes I think so. They are mostly customized and optimized for the supported protocols requirements.

RE: nRF54L15/L20 RSSI Simultaneous Frequency Sampling?

jyu10 — Thu, 08 Jan 2026 15:19:44 GMT

Thank you, are these physical protocol limitations the case for all the nordic chips?

RE: nRF54L15/L20 RSSI Simultaneous Frequency Sampling?

Ressa — Thu, 08 Jan 2026 14:32:09 GMT

The low level RF parameters like changing the bandwidth or sampling rate are not accessible and are tied/optimized to/for protocol PHYs. So that is feasible either.

Best regards,
Ressa

RE: nRF54L15/L20 RSSI Simultaneous Frequency Sampling?

jyu10 — Thu, 08 Jan 2026 12:52:03 GMT

Ok, how about if I want to increase the bandwidth of sampling, for example, if I want to listen to 3 adjacent channels at the same time?

RE: nRF54L15/L20 RSSI Simultaneous Frequency Sampling?

Ressa — Thu, 08 Jan 2026 11:35:28 GMT

Hi,

It is not possible to check the RSSI value or other RF parameters of different channels at once. The reason is behind the SoC architecture which is designed for operating at single frequency at a time. However you can of course sweep the frequencies but it will not be simultaneous observation.