Appropriate value of received RSSI

Question

I use nRF Connect for desktop / Bluetooth Low Enery Apps + nRF52840-DK. 
 When run 'start scan', In rare cases, very small RSSI values (-103dbm, -104dbm ...) may be reported. Is this value correct?( Is it a reliable RSSI? )

Mttrinh · Accepted Answer

If the received valued is out of the valid range, it means that the value isn't accurate and is affected by some other factor. The correct value will be something different, like -40dbm or -90dbm. 
 As it is mentioned in the other thread I referred to 
 Low RSSI could be caused by any number of things, RSSI is simply measured received power at receiver. The cause of reduced received power cannot be read from RSSI directly. It could be mismatch in RF front-end (matching network/antenna), fading due to multi-path, obstacles, etc.

Appropriate value of received RSSI

Top Replies