RE: BLE Long Range RSSI measurement

Bard — Tue, 22 Jan 2019 11:01:42 GMT

Thanks a lot for your answer. I should have seen the specifications in the datasheet.

But do you have information on typical accuracy to expect below -90dBm, since you estimate: "At - 103 dBm the reported RSSI should be 4-5 dB higher."

RE: BLE Long Range RSSI measurement

Andreas — Tue, 22 Jan 2019 10:35:00 GMT

Hi,

As you can see in the datasheet, the linear range for RSSI is between -20 and -90 dBm. Outside this you will get less accuracy than what is specified, meaning as the received power decreases below -90dBm the reported value will be increasingly offset from the actual value. At - 103 dBm the reported RSSI should be 4-5 dB higher.

Best regards,

Andreas