Positive RSSI values

[kmfnjtze8888]

Hello,

How are RSSI values calculated for OpenThread? When I use the neighbor table command, the Last RSSI values for some of the neighbors are positive, and some are negative. I thought RSSI values here are always negative?

[jwhui]

RSSI values are provided by the radio driver - see nRF52840 example. If you have questions about the RSSI values, I suggest reaching out to the IEEE 802.15.4 silicon vendor.